Principle of operation of DSG 7 Russian version. Robotic DSG gearbox. Robotic transmission DSG - what a beast

Motorists have long been accustomed to two types of gearboxes - automatic and mechanical. At the beginning of zero on the roads there were boxes of another type, "preselative", or, differently, DSG ( english abbreviation Direct Shift. Gearbox). Such aggregates are the merger of the manual transmission and automatic transmission.

1. What is a DSG box

The driver selects the transmissions, and the electronics itself controls the clutch and gives the command to switch the speeds. A distinctive feature of such nodes is double grip and five shafts.

This decision made it possible to achieve the same overclocking time. maximum speed, as well as mechanical gearbox. That will correctly say that DSG is the next step in the development of a manual gearbox. Such nodes are often called "robots".

2. Device and technical subtleties DSG boxes

DSG boxes are divided into two types - DSG-6 and DSG-7, the first - six-speed option, the second is seven-step.

DSG-6 has a large torque and works on the "wet" principle. The mechanical parts are immersed in the oil bath, while the circulation of oil occurs, thereby cooled the nodes and clutch discs.

Such gearbox are installed on high power cars:

• Volkswagen Golf., Volkswagen EOS $
• Skoda Octavia.;
• Audi TT, Audi Q3.

DSG 7 - "Dry" box. Differences from DSG 6 - in a reduced torque and dry clutch, transmission oil Used only for lubricating clutch disks. Put on low-power cars or on those in which the torque does not matter much. Due to the lack of normal cooling, dislike at motorists.

Examples of cars with seven-step "robots":

• Volkswagen Passat, Volkswagen TRANSPORTER;
• Skoda Fabia, some Octavia;
• Audi A3.

The principle of operation of robotic boxes ("robots") is as follows:

When the first transmission is turned on, its gear is blocked, the clutch is closed and the moment is transmitted to the gearbox, simultaneously the gears of the second transmission are blocked. It turns out that two transmissions work simultaneously, but the adhesion of the second is open and ready to turn on. By team on-board computer Unlock the discs of one clutch and turn on the other. Next, the gears of the transmission are blocked. As a result, the box is constantly ready for switching the next transmission. When slowing down the cycle is repeated, only in the opposite direction.

The general node of such boxes is a mechatronics, a block that includes sensors, hydraulics, electronic components. It follows the testimony of oil pressure, position of gear, speed and other parameters and based on this decides on the transition to an increased or reduced transmission.

3. The advantages and disadvantages of "robots"

A robotic gearbox has many and pluses and minuses.

The advantages include:

• almost instant gear shift;
• Manufacturers declare fuel economy (controversial, except in comparison with the usual "automatic");
• No engine power extraction, as when managing the manual transmission;
• Manual control.

Many and minuses:

• The cost of fixing is large;
• Unreliable mechanical part even in new models;
• Costly and complicated oil replacement procedure in DSG-6 type boxes;
• Poor tolerates aggressive driving style.
• cars with such a box are more expensive than the usual hydromechanical "automaton" and "mechanics".

For example, we give the Skoda Octavia budget car with an engine volume of 1.4 liters.

The price in the configuration with the mechanics is 1034 thousand rubles, 1074 thousand rubles are already found for the DSG box, however, the manufacturer declares fuel savings 0.1 liters for every hundred kilometers of the way. IN dealer Center "Robot" will cost 40-60 thousand more than ordinary mechanics, 10-20 thousand more expensive than the "machine".

4. Opinions and reviews

Reviews of owners of such cars are extremely contradictory. On the one hand, the barricades are satisfied with the choice of motorists, on the other - disappointed and trying to dissuade from so ambiguous acquisition. In the State Duma, an attempt to fully prohibit in Russia boxes DSG 7. The argument was care of citizens, the deputies expressed the opinion that such a box is not safe for drivers. Fortunately, it did not even come to the primary hearing.

DSG supporters lead such arguments as "work on error" manufacturers DSG (dubious dignity), rapid switching speeds that do not depend on driving skill, low fuel savings, stable operation at low temperatures, positive dynamics. It is fear of unfriendly by the fact that they misunderstood the instructions for the car. Indeed, manufacturers are recommended, unlike hydromechanics, include neutral in traffic jams or on traffic lights. However, these are just tips.

The opponents are much larger and argument of weighty. Unfigure software, complex maintainability, often to repair at all impossible, the entire assembly changes, and this affects the cost. "Garage" repairs are excluded ,, if even the usual automatic transmission is an opportunity to fix in the auto repair shop with competent employees and a set of tools, then for DSG other than official dealers no one will take. Women complain about rollback in traffic jams, men - the impossibility of a quick start from the traffic light (tribute to the reliability, when connecting the first transmission, the box "thinks").

At the second speed, vibrations are felt, extraneous noises are heard in the box. A common phenomenon is a breakdown due to the firmware, for example, "brains" cease to recognize even programs. It is believed that such systems are poorly compatible with gasoline, a little better behave with diesel fuel. In the heat on the "dry" boxes, clutch discs are overheated, repair is not subject to, only under replacement. Not in vain in the people they say this: DSG - two clutches per year.

Bad reviews are much more than positive. The negative character of responses is clearly visible. On the other hand, if everything really would be so bad with them, such boxes would not receive such distribution, and judging by the models to which they put - they are still a lot. Perhaps, autocontracers are not recognized in their mistakes, again, the conversion of conveyors is a costly, but to make us believe in quality and reliability - the work of marketers and PR services.

5. Conclusions

The decision on the choice of a robotic gearbox takes an exceptionally future owner. If you are not a lover of aggressive ride, ready to spends official dealerYou do not like the "lethargy" of automata, but also lose comfort because of the clutch pedal, too, there is no desire - DSG is quite suitable. Again, in pursuit of the client, such boxes are usually an increased warranty. For example, Volkswagen declares 150 thousand kilometers without repair. Lovers lean to leaving the traffic lights better to look in the direction of "Mechanics". If small jackets and fuel consumption are not critical - acquire a car with a regular automatic box.

IN russian conditions DSG is not very good. Perhaps in a short time corporate engineers and will find a solution to many problems, as it happened more than once, but so far "robots" are the most common lottery. Play it or not - the choice is yours. But if the question has risen only about DSG, then the choice of a six-speed model is preferable in terms of reliability and speakers.

For a long time, traditional mechanical gearboxes were considered the most reliable units capable of serving the car for a long time without any interventions and troublesome service. However, the owner of a car with "mechanics" is doomed not only for permanent manipulations with the gear shift lever, but also on the filigree work with the pedals of the clutch and gas. It is randomly infratless to release the clutch pedal and the non-merciful car jerks are provided. But, if over time, the use of a manual gearbox can be brought to automatism, practically not paying attention to the process of switching the gear, then problems caused by frequent stops and starting in traffic jams, having a car with manual transmission, not avoid. As shown informal surveys of drivers who have become owners of cars in last years, It is daily urban traffic jams that cause a choice of a machine equipped with an automatic transmission. At the same time, it should be noted that at otherwise equal to equipping a car of a particular model, the version with the "automatic" will cost the buyer more than several tens of thousand rubles relative to the option with the MCPP.

Hydromechanical automatic transmissions greatly facilitate the life of the driver, because they independently switch to the necessary transferwithout requiring permanent clutch squeezing. At the same time, the sensation of the ripple of the motor thrust smoothes the torque converter. Nevertheless, even modern highly reliable hydromechanical boxes have its drawbacks. The main ones are considered to reduce the power of the motor in view of hydraulic losses, as well as an increase in fuel consumption. Did not solve the problem and appeared robotic boxes, which have the transmission and clutch transmission techniques. Bring the algorithms for the work of robotic boxes to perfection, as well as provide high level The reliability of such aggregates has not yet been possible even by BMW cylinds.

As a solution to the problems of traditional "mechanics" and eliminating the deficiencies of standard hydromechanical automatic transmission, the Specialists of the VAG concern developed an innovative 6-speed box dSG transmissions (DirektschaltGetriebe or Direct Shift Gearbox). The specified unit was first established in 2003 on volkswagen models Golf R 32.

The idea of \u200b\u200bthe DSG itself was pretty simple. In order for the transmission process is optimal, it is not necessary to install one on the car, and two boxes are one for even, and each other - for odd gears, and each of them must have its own clutch node. While acceleration is accelerated using even transmission, the following is an odd, also enabled, waiting for the translating the current traction to it. According to this principle, DSG is customary called preselective transmission. As soon as the transfer of the transmission comes, the adhesion of the even transmission opens, and the "odd" clutch is synchronously closed. Thus, the process of transmitting traction efforts from one check-in to another is in detrimental, which not only ensures the preservation of power, but also eliminates the jerks and clips characteristic of conventional mechanical boxes. Of course, the DSG boxes installed on many models of the VAG concern are a single unit, but the general principle of its work is as described above.

It would seem that the "recipe" of the ideal gearbox was found, however, some circumstances prevented mass use of DSG. The fact is that the DSG, installed on cars with relatively "weak" engines, significantly losing in the fuel economy with similar machines equipped with ordinary "mechanics". The pump serving powerful hydraulic DSG drives constantly took the fair amount of motor power. Another source of loss " horse power"Were" wet "frictions that have a ratio of the coefficient useful action By definition, the "dry" clutch is inferior. It was so that the six-speed DSG could be installed only on the model with pretty powerful motors. That is why, the Volkswagen, Skoda and SEAT model, under the hood of which the most powerful motors are equipped with a similar gearbox.

Literally immediately with the beginning of mass production of cars with DSG 6 boxes, German engineers presented a new modification of the DSG box, designed specifically for car models with a relatively small power of the motor. This is about 7-speed DSG 7. Such a box, in addition to seven programs, has a system of "dry" clutches instead of used earlier, a set of "wet frictions. Another innovation was the presence of an electric oil with an electric drive. It is used only in case of a drop in the pressure level below the critical mark, which is not taking the power of the motor constantly. DSG 7 is a more economical unit than DSG 6, in addition, a seven-step box is much easier than its six-speed counterpart. However, the DSG 7 is capable of cope with the torque, about 250 nm, which is 100 nm lower than a six-speed box with a "wet" clutch. That is why the area of \u200b\u200bDSG 7 - tandems with not the most powerful motors, such as a 140-strong 1.4 TSI engine installed under the hood or 85-strong 1.4 liter engine installed on Volkswagen Polo.

In addition to the double-clutch system and two rows of gear, the DSG design is characterized by the presence of the main transmission, differential and control system that are placed in the box crankcase. Double clutch It consists of a drive disk connected by the input hub with the flywheel, as well as a pair of friction multidiscial couplings associated with both transmissions of the main hub. The grip of the "wet" type, installed on the DSG 6, is always in the oil bath. The seven-step unit has a dry clutch node, requiring a significantly smaller volume of oil refilling. In addition, on DSG 7, the hydraulic drive of the oil pump is replaced by an economical electric pump.

The first row drives odd transmission and reverse, the second row is even transmissions. Both rows are shafts with gear blocks located on them. The gears of the primary shaft is rigidly connected to the shaft. The gears of the secondary shaft rotate freely. At the same time, the gears of both shafts constantly fit with each other. Synchronizers, including specific transmission, are located between gears on the secondary shaft. The control system headed by switching and clutch control includes an electronic unit, input sensors and an electro-hydraulic unit.

Electrohydraulic I. electronic blocks, like input sensors, are integrated into a common module called Mechatronic. It is located in the box of the box and is the most problematic knot of DSG boxes. Generally speaking about limitations The transmissions presented, it is worth noting that with the active manner of driving, the control units included in the Mechatronic design quickly wear out, the result of which becomes the need for expensive repair. In addition, in conditions of long standing in traffic jams, in order to avoid premature wear The gearbox parts, the manufacturer indicates the mandatory switching of the gear lever to the neutral position. Another one, not the most pleasant feature of the DSG boxes, is possible noises and knocks when switching from the second to third transmission. It is noteworthy that the manufacturer officially explains a similar clandage in a box, as a constructive feature of its work that does not affect the durability and reliability of the entire aggregate.

It should be noted that there are no problems with the failure of the DSG boxes, especially its seven-step version, began to acquire such a massive nature that the concern VAG was forced to approve the program of an extended warranty for this expensive automotive unit, increasing the warranty period of up to 5 years or 150 thousand km run. The situation was most acute with the Skoda Octavia and Volkswagen Golf models, which were installed by DSG 7.

For today, problems with DSG boxes are no more than with any other PPCs. At the same time, the presented transmission has a number of undeniable advantages. Such a transmission reduces the time of acceleration of the car to the desired speed, making the switching almost imperceptible. When driving a car, the feeling is created that the machine is moving constantly on one transmission, accelerating and slowing down when required. The transmission selector is not only similar to using conventional automatic transfers, but also additionally provides manual switching. To do this, you need to move the lever up or down.

Perhaps the most famous type of modern gearboxes is a preselective robotic gearbox with two clutches - DSG. The most time is the box installed on cars of the concern VAG. The article will give answers to many who arise from motorists questions about this checkpoint will tell about the advantages and disadvantages of the box. The article will contain real as positive and negative reviews of car owners with DSG box.

A bit of history

DSG abbreviation is nothing more than doppelkupplungsgetriebe (it.) Or Dual SHIFT Gearbox (eng.). In Russian-speaking forums and communities of VAG car owners, you can meet such a decoding of DSG: two clips per year. :))) Next will be clear why some decipher this way.

The DGS box at the moment has different structures that are very different from each other. The first version of the box was released at the end of 2002. The box had six gears, the clutch in it was wet, kept the box torque up to 350 nm and was called DQ250.

In 2008, a lightweight and economical version of the DSG - DQ200 was published on the market. The seven-step box, the grip in it is dry type, but the box no longer pulls the big torque, it is limited to 250 nm.

The first and second option of the Boxes Concern VAG was developed with LUK and Borg Warner. In the fall of 2009, VAG developed and released a seven-step transmission with double grip already. The box was called DQ500, kept torque up to 600 nm and thanks to which it could be used already on commercial machinery. Another modification of the DSG family can account with DL501 or S-Tronic, which is also calculated for a torque up to 600 nm and is installed mainly on Audi, but only on cars with a longitudinal location of the engine. This is a joint development of Audi and Borg Warner 2008.

"I own the sixth Passat with DSG, I can immediately say that the car is cool. I go on it for more than ten years, and I think that the box is just unnecessary here, although to be honest, those configuration of the trade winds that are sold from us, are not worthwhile They are asked for. On the DSG boxes I want to add that during the time they began to install them, the manufacturer significantly improved it. And if someone has problems with DSG, then this does not mean that they will be each. Also, already The Japanese use a robotic gearbox - Nissan and Toyota. My parents Camri has been with a robot for more than five years, and he enjoys a car every day. For five years there are no problems. "

Principle of action DSG.

In essence, DGS is a mechanical gearbox, but the gear shift itself occurs in it with a robot and without loss of power, and not as in conventional mechanics. In the manual transmission, the power is lost at the time of the squeezed clutch, and it is clear that at the time of the turning point of the torque from the wheels, the fuel combines the fuel. In general, the use of DSH should add a car dynamics and efficiency.

"I have two cars. On the same seven-step DSG, in the second - six. I like it very much how the DSG works. But it is worth saying that it is necessary to get used to it. The box is adaptive, which means it is adjusted to your ride mode. Can work and sharply And smoothly, it is not necessary to think that this is a malfunction. The box needs time to adapt. I like such boxes than ordinary automatic transmission. Already rolled more than 50 thousand. No problem problems. "

The main difference between DSG from any gearbox is the presence of two clips. But, in fact, still lying. Boxes are also two! And they are so integrated into one common case, which is not striking. And if the car uses two gearbox, the primary shaft can not be alone. So there are trees two, and everyone has its clutch. Now it is clear why you need a two-mask flywheel in DSG.

One shaft is equipped with gears for odd and rear gears, and the second, respectively, for even. After moving the car on the first transmission, the DSG has already turned on the second, and keeps it ready. And when the car needs to go to the next gear, the adhesion of the first shaft opens, and the second clutch quickly picks up the moment without loss of power and so on.

"I bought a Passat 1.8 TSI with 7-DSG. I bought a new one in the cabin. Already passed 30 thousand, there is no break. I want to note the amazing handling of the machine, which allows it to make it easy to maneuver on the road, including in traffic jams. With a set of velocity, the steering wheel becomes harder that gives additional control over the machine. Although the car is not racing, but periodically love to burn over the ring. True, when you enter the turns at speeds, more than 100 km / h there is a feeling that he blows the back axis. So it was in my old nine, But there I yourself overestimated the ass. I will try to change the rubber, maybe this is because of it so demolitions. But as for the box itself, the car accelerates just gorgeous, dynamics - at height. up to weave - 9 seconds. In the D mode, the box switches The transmissions, as if seeds snaps, still double grip allows you to keep two speeds included at the same time. If you translate the box into a sports mode, and to sneaker to the floor, then up to 190 km / h you can get oh how fast. Personally, you can get sick B 210 km / h. In short, I have no complaints about the box. Works great."

The inclusion of the gear DSG occurs by conventional clutches of synchronizers, and the plugs are driven by hydraulic cylinders, with the help of hydraulics, the clutch is turned on and off. He directs all these processes that the most notorious "mechatronics", which contains in its module the main electronics and the electro-hydraulic of this checkpoint.

The shaft of the even gear of this checkpoint is hollow. In the assembled form inside it is the shaft of odd gear. Such a cunning was able to accommodate two MCPs in one case.

DSG reliability

Unlike classical automatic transmission, which neither clutch, nor a powerful flywheel, DSH uses these components. Moreover, the flywheel needs a two-mask and a good margin of strength, like a manual transmission (minimum 150 thousand km of run). But in practice, the flywheel at DSG may fail much faster.

"The seventh DSG is a real selo. I blurried not only the mechatronics, but also a grip. Moreover, judging by the forums - I'm not alone. The familiar master said that for him every month I consistently arrived at least one Audi, Volkswagen or Toyota with problems of the same box - then mechatron, then clutch. And always this repair is simply unrealistic money. Yes, what to say - thug on the request "Mechatronics for DSG" and everything will become understandable. But with DSG-6 things are different. Earlier I was a golf with sixth DSG, which did not prove it with anything bad, because I was not afraid to buy a car with such a box, but seven, what I regretted. With golf for 5 years there was no problems. I will not have a board, those who want to buy a car - Do not buy cars with 7-Dsg. "

The wet type of clutch in DSG is better cooled, which is why it has a greater resource - about 300 thousand km. But the resource of dry clutch is declared 150-200 thousand km. But again, dry clutch in practice does not consume so much, and the reason lies in the box control system - mechatronics. In it, before running 100 thousand, damage to the electromagnetic valves usually occurs. But the thing is that the mechatronics is located on the top of the PPC block, which is heated as much as the box itself. To understand that the box is heated very much, it suffices to say that its design is not for the presence of a water-oil separator (heat exchanger). You can imagine what temperature drops are experiencing a mechatronics by car, which first spent the night on the street in the twenty-graduce frost, and then drove on the highway with decent speedOr even worse - started "crawling" in traffic.

As you know, demand gives rise to a proposal, and today there are many services that offer Mechatronics repairs. The official dealer does not do this, and offers full replacement CAT. It is worth noting that DSG in the usual garage will not be able to repair - special tools are needed, which ensure compliance with the accumulation of up to five microns.

Consider options DSG boxes

DQ 250 (DSG-6)

The box has six gears, can withstand torque up to 350 nm. Clutch at a wet box. Often the box is indicated as DSG-6. The box needs regular maintenance every 60 thousand km, which consists in replacing the oil and filter. If the oil is not changed, the mechatronics fails quickly.

This is the first generation of DGS boxes, which was used on VW cars: Golf 5 1.4 FSI and diesel 1.9 and 2.0 TDI ; Touran, Passat B6 with diesel units 2.0 TDI ; Skoda Octavia second generation with two-liter turbocharged diesel ; and seat leon with the same diesel aggregate. The box is not devoid of flaws, but over the past more than 10 years, many car owners managed to eliminate. DSG-6 has proven itself well.

DQ 200 (DSG-7)

Seven-step KPP designed for torque up to 250 nm. The box has a dry clutch, the manufacturer does not provide for the regulatory maintenance DQ200. Many car services are still advised to perform a regular replacement of the liquid in the oil circuits of the PPC. Most complaints from car owners on this box.

Since the box is not designed for a serious torque, it was installed on the mediterranean models 1.4, 1.6, a maximum of 1.8-liter engines, mainly with a turbine.




Box had constructive featuresFor example, the pump of its hydraulic system was connected at a request from an electric motor. This allowed the car to be more economical at low loads.

It would seem - excellent gearbox, light, economical, dry clutch from LUK is designed for 300 thousand km of mileage, it is not necessary to serve the box. Ride and rejoice! But ... these "but" will be written just below. In the meantime, you will continue to acquaint with the types of boxes.

DQ 500 and DL 501

Serious "korzas" for a serious moment - 600 nm. Installed mainly on expensive and powerful audios, VW minibuses, although it is found on two-liter turbocharged Tiguen . The grip is wet, gear - seven.




Typical problems DSG.

But now consider those "but", about which mentioned above. It all started with many with a small grincling, clanging, shocks sometimes when driving irregularities, sometimes on an even place with a measured ride. After turning to the dealer, he conducted the diagnostics of the CAT, which did not detect any errors, and in the absence of vibration and jerks, the client was usually refused to the client. VW urged to consider such "small" malfunctions with a normal phenomenon.

But even more was the number of complaints about pushing, vibration and tremors when switching transmissions with 1st to 2nd and simply when driving at low speed. If the problem is not treated, then over time it has grown: the strength of vibrations increased, the clutch began to slip. Could even disappear even or odd programs. Translations were returned after replacing clutch disks.

If the hydraulics of the box overheated, the transmissions begin to be turned on by jerks, as if hinting with the driver that they say, "change the intensity of switching, moving evenly." Such problems most often arise in traffic jams, where the ride manner is appropriate: moved, stopped, moved, stopped. With such a ride, the hydraulics is heated in the box strong enough, and the clutch is experiencing an increased load.

Some motorists complained that the box did not want to include the transferences. No. And it could happen in motion. Sometimes the restart of the car solved the problem if it did not help - it was necessary to repair or change the mechatronics.

"I go to Volzz Passat 6 with an automatic DSG. Excellent Everything was all for a long time, there are no complaints to the box, but as soon as I decided to sell the car, it began. Flying gearbox, and what is strange - on a flat place. Drived about 50 km / h, and all - The box was simply refused to switch the transfer. I had to cause a tow truck. For a hundred sentenced some kind of "Mechatronics". According to experts, he burned down due to the fact that it somehow got the oil. For the repair, they requested a little more than 100,000 Russian rubles. I just went nuts, but what was done. After that, I was talking to other owners of such cars. Everything is aware of such a problem, and it is often found. And I didn't know, and I did not have time to sell the car. Conclusion - the box needs a serious refinement. . Early still put it on cars. "

Next, the manufacturer discovered an unpleasant feature. synthetic oilused in DSG: In a warm environment, the oil began to interact with copper parts of the block, sometimes causing a short circuit. After that, the clutch ceased to turn on. Many owners rushed to change the oil on the mineral water, but, alas, I could not solve a fully problem, and such an oil does not meet the climatic Russian conditions.

Some car owners changed who is mechatronics, and who is entirely guaranteed. But it did not give a blanche card for the future - there were many cases when the same problems arose already on the stubborn boxes. The opening of the "dead" boxes revealed the presence of chips, which was liked, most likely due to improper operation of the control unit of the PPC.

Answers to frequently asked questions on DSG can be found


It is worth remembering, 7-DSG are actually unrepretentious. The repair of the box on third-party services is carried out at their own risk and without any guarantees. Even the oil in it in the conditions of the garage is practically unrealistic.

How to determine that your DSG has failed mechatronics:

The box switched to N mode and on dashboard You see the "PRNDS" indication;

The first transmission is now turned on very rigidly;

In the same way, the switching between the transmissions 1-2-3 is tight, sometimes clear clicks are heard at these moments;

When braking on the second gear, vibration is clearly felt;

When revolutions below 2 thousand, the feeling appeared that the thrust was disappeared.

In many negarters, it is worth thinking about the feasibility of purchase new box - Its cost can be equal to the cost of the average car in the secondary market.

What is the percentage of DSG breakdown? And no one would say anything. Official statistics are: in the warranty period, approaching the replacement of DSG approximately 5% of car owners. As far as this is true - unknown. One thing is known - if you have such a box, then it does not mean that it will absolutely fail. Most cars are still driving without problems with DSG.

"I can say for sure - if you do not know how to use DSG, then you don't need to lie. I have a Passat with DSG-6, I have been going on it for almost 7 years. No problems do not give the box. I change the oil during and that's the first time. When replacing the oil, I thought - pour the original, or to take some substitute for cheaper. I did not take risks and flooded the original. In the box, when the oil was replaced, I saw dirt and chips. The car by that time began to start and twitch a little. I thought that if the oil was not helped, It is necessary to go to the service. After replacing the oil, all the problems disappeared! Everything began to work as on a new car. But my kum decided to save and bought a non-original oil. The week chased, and the car became a stake. Make it start, but the transmission to switch the box already Could not. In the end, I got to replace the gearbox at the dealer. In addition to the fact that the dubbed bought a bunch, I had to wait for a month. So do not leut into the box of any g. "

Situating complaints of car owners with DSH, you can conclude: the DSG box does not tolerate the ride mode permanent work Clutch and frequent gear shifts. A typical example is a permanent ride in traffic jams. Such a ride overheats the box, wear off the clutch and breaks mechatronics. But, for driving in traffic, it is preferable to names such or classic automatic box. It is terribly uncomfortable to pull the "Kochergu" in the traffic jam, so they buy residents of metropolis cars with DSG, for a comfortable ride. But it was not there...

Next, it is important to keep in mind that DSG is not for "riders"! She does not like sports driving, and receiving the engine promotion with a squeezed brake pedal for further sharp breakdown can kill DSG with dry clutch literally from one such start.

In general, the problems of DSG lies in complex technologies, and well done Volkswagen, which develops and improves the topic of fast and simultaneously smooth driving, being, in fact, the leader in this area. Yes, and environmentalists have a certain pressure on these developments - after all, the usual automatic transmission consumes more fuel, and therefore emissions into the atmosphere of such cars more.

So still - buy or not a car with a DSG box? Why not? But it is advisable to take a car from VW not older than 2012 or with a box DQ250. After all, you need to understand that there are problems from other machines and with another type of gearbox. What is worth, for example, the French automatic machine DP0 / DP2. Yes, DSG has more percentage of failure, but it is not equal to one hundred. Yes, and from exploitation and timely service, much depends. I would like to believe that many typical shoals corrected the latest modernization of this type of gearbox, and now problems with boxes will be much smaller. But if you are still a true connoisseur of durability and reliability, then you don't need such a box, brother. " Look for anything at the present simple - simple manual transmission, simple car pack, smaller frills and electronics in the car, because than easier mechanismThe smaller the probability of breakdowns. This rule concerns not only cars.

But the author of the article still hopes that problems with new DSG remained in the past, and if they were not left - then a couple of years, and VAG "re-" this type gearboxes to optimal state. And the remaining manufacturers will also start equipping their cars with such a gearbox. After all, still damn nice to ride the car with DSG!

To collect information about the operation of the DSG box, its breakdowns and faults, leave your feedback and share your experience. Descendants will be grateful to you.

In his philosophy DSG - mechanical box Transmissions, changing the steps in which it takes automatically. The driver has the ability to use manual switching mode, but also in this case, the transmission is carried out by actuating devices by manual by electrical signals. Direct links between the lever of the gearbox and the forks of changing the driven gear does not assume such a design. Clutch work is based on the same principle. Disconnecting Flywheel FMS from the drive shaft of the gearbox is carried out by a servo on the automatic transmission unit command.

A distinctive feature of the DSG box is a double grip. The lightning gear shifting speed was achieved due to the fact that when the transmission is turned on, the next step is automatically turned on. For example, when you turn on the 1st before, it immediately turns on the 2nd transmission. It can be said that a pair with a manual box work two separate clutch baskets. It will be difficult for you to understand the principle of operation of the DSG if you are unfamiliar from the car.

Currently there are two generation of robotic gearbox from the VW-Group. Each of them has features, so the DSG 6 and DSG 7 device should be considered apart.

DQ250

Volkswagen AG in 2003 was launched into DSG production. The American company BorgWarner was engaged in the development of the CPT. According to the constructor assurances, the mechanical components are "digest" to 350 nm. This allowed to meet such a box on a car with a volume of 2.6-3.2 liters. DQ250 Complete VW Golf, Scirocco Jetta, Passat, Sharan, Touran, as well as Some SEAT and Skoda models . The main components of the automatic transmission:

To transfer torque from the crankshaft, a two-massed flywheel is used. The main feature of the six-speed gearbox clutch, which by its device resembles an automatic transformer automatic transformer. Inside the case there are 2 packages that consist of discs rigidly connected to the wrench flywheel, as well as friction discs in engaging with the primary gearbox. If necessary, the adhesion of the CPP shaft and the flywheel discs are compressed under the pressure of the oil. In mode idle move Disks rotate without entering. The construction of the hydraulic oil pump is used in the design, which provides oil not only the clutch, but also performing mechanics of mechatronics.

DSG 7.

In 2008, the light saw the seven-step DQ200, developed by LUK specialists. Comfortable for automatic transmission moment was limited 250 Nm, so it is completed with less powerful, light cars with a cross-location of the engine. From the features of the device, a clutch has been arranged in one case with a two-headed coupling, which is no longer combined with an oil bath inside the box. The principle of operation of dry clutch is identical to that applied on machines with mechanical gearbox. This follows from the device:

LUK also replaced the hydraulic oil pump on the system with an electrically driven. This allowed almost 4 times to reduce the filling volume of oil (1.7 l against 6.5 liters of DSG 6).

DQ500

The third generation of automatic transmission was developed by Volkswagen specialists. The manufacturer declares that it is able to "hold" to 600 nm, so such gearboxes are installed on Transporter 4 × 4, Tiguan and many other models from the VW-Group. Designers returned to the wet clutch type.

Control system

It is Mechatronic manages processes occurring inside DSG. System components:

• input sensors fixing the position of the transmission plugs, the speed of rotation of the shafts, the pressure and oil temperature, the degree of opening the throttle valve, etc.;
• electronic control unit;
• electro-hydraulic unit, which is a set of executive mechanisms. It includes distributors spools, solenoid valves, oil pressure adjustment valves, multiplexer.

We collect puzzle

It remains to consider only some of the features of the DSG device, which make it possible to understand how the preliminary inclusion of the next transmission is implemented. The main secret is that the PPC has two primary shafts. They are located coaxially (one passes inside the other) and each with its clutch is connected.

One of the shafts is designed for an even range of speeds, another for odd steps and inclusion rear stroke. In the mode of movement of the wheel is connected with only one primary shaft. The magnitude of the torque, that is, the transmission is determined with which gear of the secondary shaft is currently connected primary shaft. At the moment when one of the clips connects the primary shaft with one of the secondary shafts, the second secondary shaft rotates freely, which allows you to select the following transmission through synchronizers. When the mechatronic decides that the right moment came to turn on the transfer, it will open one clutch and immediately turn on the second. It is that the shaft of which is already connected to the gear of the next transmission.

The type of actuator installed in the car determines the layout of the wet clutch. A more compact option is concentric (frictional discs are located in the same plane). For rear-wheel drive cars, a parallel arrangement of the couplings are applied (located perpendicular to the shaft, packages are one by one). The type of the driving axis determines and the layout of the PPC itself.

Danger of purchase

It is worth a recognition that the smoothness of switching and the speed of switching by many owners of the car with DSG is very expensive. Basic breakdowns:

• DQ250 - fast failure of a two-mask flywheel. The problem here is not in DSG, but in the unreliable design of the element of the flywheel. The appearance of vibrations accelerates the failure of double clutch;
• DQ200 - eliminated the problem with the flywheel. But dry clutch is wears much faster. Reducing the amount of oil leads to frequent overheating. Double clutch very badly tolerates constant sharp accelerations. Designers, trying to extend the automatic transmission resource, programmatically underestimate the characteristics of the engine, smooth the reaction to short press accelerator pedals;
• overheating is the common problem of all DSGs, but worst of all the case in this regard with dry clutch automatic transmission;
• malfunction of mechatronics. Characteristic breakdown for DQ200 and DQ250, but there are precedents and with DQ500;
• differential satellite axis breakdown is a problem that has moved new samples from the manual transaction. Fortunately by the owners, the fault is inflicted.

How to be

Jerks or vibrations when switching, pinking, constant sounds and not included shows can catch the owner new car Already from 30 thousand km. The trouble-free operation of DQ200 and rarely lasts more than 70 thousand km. DQ250 with normal operation is capable of running more than 100 thousand km. This situation is indeed frightened, because the resource of the automatic transformer automatic transformer type is often not limited to 250 thousand km. Separate models with a regular replacement of oil and gentle operation are wound up to 400 thousand km. At the moment best Transmission DSG - DQ500, installed on all-wheel drive cars. The front-wheel drive layout is more prone to overheating. Much, of course, depends on those conditions in which drive. What harms robotic checkpoint:

• continuous driving in traffic jams (especially in summer);
• dynamic ride with sharp accelerations;
• wrong chip tuning.

Now you know what DSG is. In addition to the above information, owners can be advised to change the oil every 30 thousand km in the checkpoint with wet clutch. This will significantly extend the service life. Separate attention is the question of the feasibility of buying supported cars with DSG.

A variety of myths and legends have been formed around the DSG gearbox. Motorists have heard about her problems somewhere, but they definitely not formulate them. Let's try to answer all typical questions about it.

What is the feature of DSG boxes, the principle of DSG?

DSG is a robotic box with two clutches, which allows you to quickly switch the transfer, due to which the car can quickly and effectively accelerate. The robot is, constructively, the usual manual transmission, in which the transmissions switches the automation.

How does the usual robot or manual box work? To switch upstairs or down, the driver (or computer) disconnects the clutch disc from the flywheel, turns on the desired transmission and connects the drive back. While the gears switches, the torque from the engine is not transmitted to the box, and the machine loses in the dynamics.

In DSH, these pauses are reduced to a minimum: one clutch is responsible for an odd range of gears (1,3,5,7), and the second is for even (2,4,6). The car starts, and an odd row disk is pressed to the rotating flywheel. The disc of the even row will open. While the machine accelerates on the first, the computer gives the command to turn on the second transmission to the second row, and when the moment of switching comes, the disk disc will be disconnected and immediately turns on the hour. Accordingly, the even number works further, and the odd switches and get ready to join the work.

"Wet" and "dry" options for the DSG box are used in parallel. More enduring DSG6 is able to digest a large torque and put on more powerful cars. DSG7 goes on less powerful versions. Also DSG under the brand S-Tronic put on audi cars. Exclusively for this brand offers an upgraded version of the DSG7, which preserved principal scheme With dry clutches.

What is the difference between DSG6 and DSG7?

DSG is two species. First, in 2003, a six-speed DSG6 box appeared. Double grip in it was "wet", that is, it worked in an oil bath. The main minus of the box is significant power loss due to oil. Therefore, in 2008 VOLKSWAGEN presented new option - DSG7. This box uses dry clutch. It is this box that has become problematic. When choosing a car with DSG, always pay attention to what kind of it is used - six or seven-handed. DSG6 can be taken without a doubt, but the DSG7 is better to leave those who are poorly understood in the technique.

Models of cars released with a problem box DSG7 and alternative options with DSG6 and other automatic transparents?

For convenience, we have collected all the models of the Volkswagen concern in one table.

Special attention: Skoda Octavia with DSG7, VW Golf with DSG7, Audi A3 2014 with DSG7

What malfunctions and problems are characteristic of DSG?

The most common is shocks when switching gear. Clutch discs are closed too sharply, why the car twitches. Other symptoms are also found: cladding, crushing, shocks and loss of thrust in motion. The latter is especially dangerous if the car at the time of failure is in the process of overtaking on the oncoming lane.

As we were explained in the company Peter AT, the main problem of the DSG box is dry clutch. It is subject to accelerated wear, with the root of the problem - in the incorrect algorithms of the mechatronic block, which manages the operation of the box. There are, of course, and other malfunctions: occasionally wear the sleeves and the clutch shuttering plug, the contacts of solenoids are departed, the dirt is poured into the sensors, antifreeze falls into the oil ... but these cases are from the discharge of exotic.

The main thing is what you need to know: if you still bought a post-warranty car with DSG7, and the box gives the symptoms of a malfunction, this is not a reason to change it assembly. Actually gearbox, i.e. the set of gears, is in order practical never coming out. The box can be repaired, which will cost an order of magnitude cheaper replacement. True, spare parts will have to wait a few weeks - the demand for them is still small, and parts sellers do not have stocks.

What is the manufacturer's guarantee on the DSG box, free repair of DSG and its replacement?

Perhaps in this case it will be logical to quote the literal letter of the company Volkswagen Group Russian leaders of the service dealership service. "We hereby inform you about the current rules for processing customer claims possible malfunctions In the work of the DSG7 gearbox. Volkswagen Group Rus, LLC, going to meet the wishes of clients, in order to preserve confidence in the concern cars, as part of an additional obligation, provides customer support when identifying the factory disadvantage of the DSG gearbox before expiration of 5 (five) years or before reaching 150.000 km (Depending on what will come earlier) from the moment the car is transferred to the first buyer. Support is provided in the form of free for the client to eliminate the deficiencies by repairing or replacing individual components of the checkpoint or assembly assembly. "

Sometimes dealers are trying to refuse to customers in warranty repair, referring to the fact that he passed on unauthorized stations. By law, it cannot be a reason for refusal.

If you have a car under 5 years old and with a mileage of less than 150,000 kilometers, and the dealer refuses to free repairs DSG7, complain directly on hot line Volkswagen.

Also, you should not succumb to dealers to undergo some scheduled maintenance DSG. The fact is that this is a non-servant box, and the planned is a way to make money on non-farm customers.

Is it true that all problems with the DSG box Volkswagen eliminated?

The fact that engineers are working on the modernization of DSG are a fact. The software and details of the clutch node are improved. However, it is impossible to reliably to say that the problem of accelerated wear is solved. The problem is that concern Volkswagen. prefers to lead a closed policy, and publishes official information Regarding how the box is refined. And although since 2014, a 5-year-old warranty on DSG no longer applies, there is no reason to say that the problem of reliability is solved.

Why continues the production of cars with DSG7?

The official position of the company is such: the box provides excellent acceleration dynamics and efficiency. Questions about the reliability of the Germans simply pass past the ears. You can only then assume that the reason lies in the usual business calculation. The development of the gearbox is billions of euros of costs, and just so to refuse it it is impossible. Obviously, Volkswagen counted that it was easier to spend money on warranty repair And spread rumors about the robust reliability of DSG7, than urgently translate all its cars on DSG6, "Avtomat".

What to do in this situation a simple motorist who wants to buy Volkswagen, Skoda or Audi?

Select a modification equipped with any other box except DSG7. True, unfortunately, Golf is offered today with it, or with mechanics. Skoda Octavia has modifications with DSG6, although only diesel. W. Polo Sedan. And Tiguan has versions with a traditional 6-speed machine. In general, there is a choice, although he narrows.

Why not buy a car with DSG7?

First, because despite all positive traits Boxes, it makes no sense to play the lottery and hope that it will be the car that will not be twisted when the gear shifts and which does not "get up" after 50 thousand runs.

Secondly, because machines with DSG7 are poorly sold in the secondary market. People who buy used cars are usually more aware of technical featuresrather than fans of new cars from the salon. Most of They are perfectly aware of the problems with a seven-step robot, and they will not fairly want to communicate with them. Of course, you can always hand over the car in Trade-in, but with a very big discount, as the cabin managers are also aware of the case.

With any scenarios, the owner of the machine with DSG7 expect problems and financial losses. Whether they are pleasure from the management of Volkswagen, Skoda or Audi, this is already every one decides for themselves.

When will DSG7 are removed from production?

This is not spoken to Volkswagen. There are concerns that the box will live on the conveyor long enough, the benefit of the DSG6 is used since 2003. There are examples of the long life of frankly unsuccessful knots. For example, the French 4-step automatic DP0 and its numerous derivatives: DP1, DP2, AL4, which do not tolerate overheating and differ with rare "stupidity" in motion. It is used with various modifications from the beginning of the 90s, and still put on Renault Sandero., DUSTER, Nissan Almera. And even on the relatively not cheap peugeot 408.

Unfortunately for motorists, now manufacturers are generally very little concerned about the issue of reliability of cars. The main vector of their development is now ecology. For the sake of saving a hundred grams of gasoline, various dubious technologies are being introduced at 100 kilometers, often cutting the overall resource of the car, such as direct injection, increasing turbocharging pressure or compression degree in cylinders.

Gearboxes - relatively tepique branch Development, and DSG, no matter how paradoxically, is now on top of progress, as it provides economics (and therefore feded environmental friendliness). The fact that the unit "lives" is on average 150 thousand kilometers, few people are interested. Manufacturers are generally not interested in existence secondary market "They dream that people bought only new cars, and the old things were thrown into the garbage."

Therefore, no matter how sad, but with DSG7 we have every chance to live another 5-10 years without much changes. And everyone will continue to pretend that it is necessary.