The indicator for checking the engine Mazda cx 5 is on. Weaknesses and main disadvantages of a used Mazda CX5. Chronology of major events

The Mazda CX ‑ 5 is the first model to be powered by Skyactiv technologies. They are used in the development of many components of the car: and gearboxes, as well as the chassis and body.

In addition to setting a general new vector in the creation of machines, Skyactiv, in particular, has become an alternative to European downsizing and robotic boxes. The Japanese remained committed to naturally aspirated gasoline engines and classic automatic transmissions, which clearly contributed to the success of the CX-5 in our market. The assembly in Vladivostok has increased the competitiveness of the new crossover.

The car quickly became a hit of sales and helped the manufacturer to maintain its position in our market during the crisis years. Today, the first generation CX-5 is a tidbit on the secondary.

Battery, which supports the "Start-Stop" function, whimsical. When replacing it, you must install the original battery or carefully select a suitable replacement. Otherwise, all sorts of system malfunctions are likely.

After installing a new battery, it is imperative to initialize it and(the number of engine starts and the age of the battery), otherwise the “brains” of the engine will charge it incorrectly, which will lead to a reduction in its service life. In addition, the battery does not tolerate deep "drawdowns": its plates can crumble.

Replacing an expensive windshield requires special attention. It has a removable frame with a rain sensor, a laser rangefinder for the autonomous braking system in the city and a photosensitive camera. As a rule, on cheaper non-original glasses, all this electronics starts to work incorrectly; most often the fault is an additional strip or a displacement of the frame attachment point. But the original can have the same consequences - it is very important to carefully remove and install the frame with the sensors. And you can't glue the tinting strips.

The cause of most problems with body electrics becomes substandard or the installation of non-standard additional equipment. Modern Mazdas are especially sensitive to it - over time, the remake begins to fail and pulls along with it a lot of non-trivial malfunctions.

Folding mechanism for side mirrors rear view is frankly weak. The actuator can break even with a small additional load, for example, due to ice crusts on the housing. This also happens when folding the mirrors with your hands. Previously, for this reason, it was necessary to change the assembly of the mirror body, but later the manufacturer released a relatively inexpensive repair kit.

The paintwork is thin. This applies to all modern Mazda, regardless of the place of production. Chips appear quite quickly, but do not rust for a long time- the quality of the metal and its anti-corrosion treatment is decent. The body has no weak points, therefore, the centers of corrosion when inspecting the car will indicate precisely the consequences of an accident and poor-quality repairs.

On cars of the first year of production the rear view camera failed. Due to poor sealing, water got inside during washing and shorted the CAN bus. As a result, a lot of motley electrical faults arose. The manufacturer promptly released an upgraded camera. And during the warranty replacement of the previous one, the servicemen installed an additional seal.

Domestic build quality not satisfactory. Many servicemen found cars from Japan - they did not notice a noticeable difference.

Diesel Skyactiv 2.2, as well as gasoline units, it has undergone a major modernization in order to provide a compression ratio very low for engines on heavy fuel: only 14.0. However, fortune turned away from Japanese engineers - the engine turned out to be extremely unreliable. Moreover, it was not the engine base that failed, but the attachments.

The vacuum pump, which is driven from one of the camshafts, behaves completely unpredictably. On any run, the knot may simply fall apart. And a huge volume of metal shavings is carried through the motor, which clogs the oil channels. in this case it is not economically feasible. Moreover, according to servicemen, the manufacturer has not modernized the pump.

The second destructive flaw is unreliable fuel injector mountings. Over time, they weaken, the injectors begin to "jump" from the pressure of the gases in the cylinders. As a result, carbon deposits accumulate in the place of their landing.- and the nozzles are already permanently suspended. As a result, an even greater flow of exhaust gases enters the block head, leading to coking of the oil channels. Because of this, oil starvation begins ... The motor can be sent to a landfill.

These two problems led to the conduct: during a routine inspection of cars, dealers tighten the injector mountings, check for oil pressure errors, and remove the valve cover to assess the level of contamination and the condition of the vacuum pump. Basically, help is provided on time, but it happened that the motors were changed completely under warranty. Unfortunately, there is no clear threshold for contamination levels anywhere, and dealers should not do anything in the absence of DTCs. And since absolutely on all arriving cars the nozzle attachments are loosened, then the oil channels are already coked to one degree or another, which leads to a reduction. But the main fleet of diesel "ce-x-fifths" has already passed the warranty.

On cars of the first years of production, there was a significant development on the camshaft cams, which led to a strong roar of the engine. The manufacturer eventually corrected this defect.

It's a shame that a diesel engine suffers from such ridiculous ailments, because otherwise it does not cause any trouble at all. Moreover, the listed malfunctions are characteristic not only of Russian cars. In Europe, the corresponding statistics are more extensive - also because the fleet of diesel vehicles there is much larger.

Gasoline engines Skyactiv 2.0 and 2.5 a very high compression ratio (14.0 and 13.0, respectively), which required a significant design change. Many feared that these fancy engines would be extremely moody and unreliable. However, they do not suffer from serious sores, although they have some operational features.

The motors are identical in design. Apart from the larger displacement and slightly lower compression ratio, the 2.5 engine differs from the 2.0 only in the presence of a balancer shaft block and an oil heat exchanger. Therefore, the weak points of these units are the same.

They have a good oil appetite, which was typical for the engines of the previous generation. An engine 2.5 has a noticeably higher oil consumption than a two-liter one, so it is extremely important to monitor its level... In case of oil starvation, the connecting rod bearings are the first to be removed from both units. When knocking on the engine, you must immediately contact the service station - this will save you from more serious damage.

Direct injection fuel injectors are sensitive to fuel quality. If you refuel at dubious gas stations and close your eyes to the symptoms of clogged injectors, you will have to change them after 100,000 km - it will not save you. Significant clogging of the injectors leads to a difficult start of a cold engine, the fault code signals misfire. However, the nozzles on the CX-5 do not have to be flushed more often than on other brands of machines.

The plastic hinged belt tensioner needs attention. Development appears on it rather quickly, due to which the belt may break. This is a massive problem. An original repair kit consisting of a separate roller and belt is available on the market. Leakage of the hydraulic roller tensioner is occasionally encountered and is available as a separate spare part.

On the first cars, expensive ignition coils with a built-in ionic knock sensor quickly died. Upgraded items were released. On the lion's share of cars, they managed to change the coils under warranty, but still there is a chance to run into "pre-reform" parts. Important: the presence of knock sensors in the coils requires the use of appropriate spark plugs (the operating manual contains two numbers: the original and the replacement). Most part catalogs contain inaccurate information about the applicability of other substitutes.

Misting of the motor front cover is sometimes encountered. When it is re-compacted, you need to put more sealant in the joint area with the cylinder block and the head, otherwise the fogging will return. And the work is not cheap!

Cars of the first two years of production with a 2.0 engine were noted. The successful start of a cold engine only from the second or third attempt at near-zero temperatures was associated with the firmware of the control unit - a too lean air-fuel mixture was created in the cylinders. The manufacturer has fixed the problem by releasing updated software.

Automatic boxes almost identical in design. Indexed version GW6A reinforced for a higher torque (for example, it has more discs in the clutch packs) and is paired with a diesel engine. with her is not fixed. And here is the series machine FW6A, intended for gasoline engines, was marked by unpleasant features. At risk are "pre-reform" cars, but there are nuances that affect the restyled CX-5.

On cars of the first years of production, dealers often changed the box assembly. The reason lay in the active wear of the so-called reverse clutch, part of which is built into the machine body, which makes it impossible to change it separately (there are no spare parts and repair technology).

Clutch wear is accompanied by the active formation of metal chips and the appearance of characteristic jerks during gear changes.

The manufacturer quickly released a new software for the box control unit (a service campaign was carried out for flashing), and complaints about it practically stopped. However, on "pre-reform" cars, machines are sometimes changed to this day, and more often on cars with a more powerful and torque motor 2.5 - due to the increased load on the box.

There are two main symptoms of breakage. On a warmed-up box, tangible shocks occur when the selector is shifted from "neutral" to "reverse" or "drive", as well as when switching from second gear to third at relatively high engine speeds (3000-4000 rpm). This is easily verified during a test drive.

If you track the first ones in time, there is a chance to save him. until chips enter the hydraulic system. It is necessary to carry out complex work - a flashing plus the so-called adaptation of the box using diagnostic equipment. Theoretically, this can help on restyled cars, because the manufacturer has released more than one software update. Keep in mind that a separate adaptation gives only a short-term positive effect in the operation of the machine. With the correct firmware and adequate operation, the machine survives a mileage of 100,000 km. It is important to use genuine Mazda ATF-FZ oil. The box is very sensitive to the quality of the oil.

In our market mechanical box (index C66) was available only for front-wheel drive cars with a 2.0 petrol engine. Such versions of the CX-5 were in extremely limited demand, so statistics for this unit are very scarce. I would like to note that servicemen have never encountered faulty boxes, even on cars with a mileage of over 200,000 km.

On the CX-5, all amplifier components are integrated into the steering column. Such a scheme is rarely a hassle, because "ordinary" steering mechanisms are reliable.

The owners of cars of the first year of production turned to servicemen with complaints about knocking when crossing irregularities with wheels turned to the left... It arose due to the backlash of the steering rods. The manufacturer promptly released the upgraded parts and replaced the previous ones on the conveyor.

The weak link is the bevel gear. Shank oil seal and inner collars are often leaking. By the way, the inner cuffs sweat much more often on the CX-7 model.

For the owners of the "pre-reform" CX-5 it is important not to delay the replacement of the internal oil seals of the gearbox, which shows signs of leakage... Quite rarely, but still it happens that the cuff separating the cavities of the machine and the dispenser is damaged. This is dangerous, because the box fluid (ATF) under pressure and in large volumes enters the gearbox, into which a different type of fluid is poured. And the machine can catch oil starvation.

All suspension parts have an enviable resource. The CX ‑ 5 is a model car in this respect. For example, the silent blocks of the front levers begin to crack and tear only after 200,000 km. Only occasionally do you have to change the front stabilizer struts.

Poor quality fuel will significantly reduce the catalyst life on gasoline powered vehicles. Fortunately, in case of possible shedding of its filler, ceramic dust does not enter the cylinders due to the absence of an exhaust gas recirculation system. Oxygen sensors are highly durable.

So far, servicemen have not met cars with a clogged diesel particulate filter. At the same time, there was an action to rewrite the engine control unit. The updated software simplifies the conditions under which automatic filter regeneration starts even in city driving.

An important point! The breather for the electric four-wheel drive clutch is routed through a hose to the luggage compartment. Moreover, it is made flush in the right niche of the compartment, which is below the level of the main floor. Spilled water can easily get into the clutch and quickly finish it off, while the knot starts to make a loud noise, like a grinder.

There were cars with poorly installed roof rails (non-standard additional equipment). Through their fasteners and seals, water enters the same niche. The manufacturer even issued a technical bulletin, according to which they put an updated breather. The upgraded part protrudes significantly above the niche level and has a valve.

Noise isolation on Mazda is mediocre. There are bare metal sheets in the cabin. Therefore, work on the installation of additional "Shumka" is in great demand.

The quality of the trim elements is low. The steering wheel cover is the first to be rented. Leather upholstery is quickly rubbed off (paint comes off).

Bose Door Speakers(especially the front ones) are very afraid of moisture. All Mazdas have condensation in their doors. An additional dangerous amount of moisture gets into the rain and snow when driving with the windows ajar, or after poor-quality body repairs. Because of this, the membranes on the speakers, which are very expensive, peel off, and they begin to rattle and wheeze.

Sometimes the driver's seat height adjustment mechanism breaks down or a noticeable backlash of the frame appears (more often than others, overweight drivers face this). Frame play is eliminated by installing modernized fixing washers at its base. If the rather flimsy seat height adjustment mechanism breaks down, you will have to change the frame.

TOTAL

Mazda CX ‑ 5 is quite a successful crossover, except for modifications with a dangerous diesel engine. With reasonable operation, even after 200,000 km, the machine only requires scheduled maintenance. To be guaranteed to avoid possible costly malfunctions that were not etched out during the warranty period, do not buy cars from the first two years of production.

Dealer service

Many of us have faced such a problem as the inclusion of an indication of the engine icon (Check engine ...), the appearance of which scares the drivers of cars. We offer you the 5 most common reasons why an engine check comes on on the dashboard.

The engine gauge icon usually appears without warning. The reason for the appearance of the Check engine cannot be immediately understood. Even if there is an auto diagnostics in the car (for example, in such cars as,), which scans all systems of the car for errors and, if any, displays a decryption on the information panel, the reasons for the appearance of the engine check will not be decrypted.

For most drivers, the appearance of this warning symbol on the dashboard means that they urgently need to go to a car workshop to diagnose and eliminate the cause of the engine check warning sign. But in fact, in most cases, when the "Check" indication appears, it is possible, and in some cases, perhaps, to eliminate the cause on your own without a trip to a car service, which will save your money.

1. Replace the oxygen sensor (lambda probe)

The oxygen sensor in your car is part of the exhaust gas system that monitors how much oxygen is not burned out in the engine's combustion chamber. This sensor helps to monitor the fuel consumption of the vehicle. A malfunctioning oxygen sensor (lambda probe) means that the car computer receives incorrect data, which can significantly increase fuel consumption and reduce engine power. Most cars have 2 to 4 oxygen sensors. If you have a home car error scanner, then by connecting it to the car, you can easily find out which sensor needs to be replaced.

For what reason the oxygen sensor in the car becomes unusable: Over time, the sensor becomes covered with a layer of used and engine oil (oily soot), which reduces the accuracy of the sensor readings to regulate the gasoline mixture and distribute the optimal one. A malfunction of the oxygen sensor in the car leads not only to, but also to an increased content of harmful substances CO2 in the exhaust.

What needs to be done: If you do not replace a faulty car oxygen sensor, then this can lead to failure of your car's catalyst (may burst), which will result in costly repairs. The cost of new catalysts is very high due to the content of precious alloys in them. On some cars, there are several catalysts, the cost of which can go up to 90,000 rubles. So do not delay replacing the sensor. Although the replacement of the sensor and its cost is not very small, it is not commensurate with the cost of the exhaust gas neutralizer system. You can also save on replacement costs by doing it yourself. Many car manuals have detailed instructions on how to replace the oxygen sensor yourself. If you know where the oxygen sensor is, then it will not be difficult for you to disconnect the faulty "lambda probe" and replace it with a new one. Remember that you cannot pull to replace this important element!

2. Check the fuel filler cap

Many drivers in most cases, when the "check engine" indication appears, will think about serious problems in the car's engine, but will not even think to check the tightness of the fuel system, which can be broken due to a defect or insufficiently tightened fuel filler cap. This is a very common cause of the "Check" engine icon.

The reason for the error: Leakage of the fuel system due to the passage of air, the fuel filler cap, will increase the fuel consumption of the car, for which the car diagnostic system will give an engine error by turning on the "Check engine" indication on the dashboard of the car.

What needs to be done: If, when the "Check" indication appears, your car has not lost power, and there are no sound signs of engine damage (knocking in the engine, hum, creaking, etc.), then first of all check the tightness of the gas tank. Your gas cap may be cracked or not tight enough. If the cover was not tight enough, then after tightening it all the way, continue driving the car for a while to see if the engine error disappears. To prevent the appearance of an engine check for this reason, regularly check the fuel filler cap. Remember to periodically replace the cover with a new one!

3. Car exhaust gas catalyst

The car catalyst helps the car to make the exhaust gas from the engine more environmentally friendly. It converts carbon monoxide and other harmful substances into harmless compounds. If your exhaust gas catalyst has become unusable, you will notice this not only when the engine badge (check) appears, but also long before that, when the car's power drops by 2 times. For example, when you press the gas pedal, the car, as before, will not have good acceleration dynamics.

Because of what the automobile catalyst can fail: if you regularly service your car, in accordance with the maintenance regulations of the car company, then the catalyst should not fail. The main reason for the failure of the catalyst is the untimely replacement of a faulty oxygen sensor, as well as irregular replacement of spark plugs at the end of the expiration date. When the oxygen sensor or spark plugs are faulty, the conversion of carbon monoxide in the catalyst into harmless chemical elements stops, which leads to overheating of the catalyst, which can be damaged as a result.

What needs to be done: If your catalyst has become unusable, then you cannot drive the car, since the engine will not work correctly, warning about this by an indication on the dashboard with an engine icon (check). Also, your fuel consumption will be greatly increased, and there will be no engine thrust. Although replacing the catalyst is a very expensive repair, there is nowhere to go from the repair. Although there is an alternative to replacing the catalyst with a flame arrester, this is not a 100 percent option. Unfortunately, if you are not an experienced auto mechanic, then you cannot replace a faulty exhaust gas catalyst yourself. In any case, you will have to go to a car repair shop. Remember that timely replacement of oxygen sensors and spark plugs protects your catalytic converter from damage!

4. Replace the MAF sensor

The mass air flow sensor regulates how much air needs to be added to the gasoline mixture to optimally ignite the fuel. The sensor constantly informs the vehicle computer of the amount of oxygen supplied. A defective MAF sensor will increase fuel consumption, increase CO2 levels in the exhaust gas, and reduce engine power and ride smoothness. Also, with a faulty sensor, poor acceleration dynamics is observed. In cold weather, a car with a faulty sensor will not start well.

What are the reasons for the failure of the mass air flow sensor: Most sensor failures occur due to improper installation of the air filter during its scheduled replacement. Also, if you do not regularly change the air filter, as required by the vehicle maintenance schedule recommended by the manufacturer, the MAF sensor may fail.

What needs to be done: In theory, you can drive for a long time with a broken MAF sensor (several weeks or months). But you will notice that the longer you drive, the more fuel consumption increases. Replacing a sensor in a car service is not that expensive, since the work itself does not take much time and is quite simple. The main costs are associated with the cost of the sensor, which for some car models can be 11,000-14,000 rubles if it is an original sensor or up to 6,000 rubles if it is an analog substitute. Replacing the sensor yourself is very easy. But due to the low cost of replacing the sensor, you can entrust this work to the master in the car service. Remember that it is necessary to regularly change the air filter, observing the vehicle maintenance regulations!

5. Replacing spark plugs and high voltage wires

Spark plugs in a car are the main parts for igniting the fuel mixture. With faulty spark plugs, an incorrect spark is supplied to ignite the gasoline mixture. Defective spark plugs often have a lack of spark or an incorrect spark interval, which affects engine malfunction. If the spark plugs do not work properly during acceleration, especially from a standstill, you may feel small jolts.

What are the reasons for the failure of spark plugs: Most spark plugs in vehicles prior to 1996 need to be replaced every 25,000-30,000 kilometers... In newer cars, spark plugs last over 150,000 km. However, these spark plug replacement times can be reduced due to various factors related to fuel quality and driving style.

What needs to be done: If your candles have not changed for a long time, or if you feel dips associated with ignition in the engine, then you must immediately replace them with new ones without delay. Do not try to save money on untimely replacement of spark plugs, as the cost of spark plugs is not very expensive, as is the work of replacing them. Replacing old spark plugs will improve engine performance and reduce vehicle fuel consumption. It is quite easy to change spark plugs on your own. Mostly they are easily accessible under the hood of the car. You need a regular spark plug wrench to remove the spark plugs from the engine. It is also advisable to monitor the condition of the high-voltage wires, as over time they can become unusable and allow electricity to pass, which is transmitted to the spark plugs, which will reduce the force of the spark. Remember that regular replacement of spark plugs, in accordance with your car's maintenance schedule, keeps your exhaust catalyst from damage, and also improves engine performance!

Red Mazda CX-5 set off on a long road of testing on May 13, 2013. Testing of the crossover by the editors of the German magazine "Auto Bild" took place in strict accordance with the plan. From the very first kilometers, the SUV began to collect positive reviews. Most of the entries praise the 2.2-liter turbodiesel and the balanced comfort chassis. As you probably guessed, this combination made the Japanese crossover the most sought-after vehicle for long-distance travel.

During testing, pleasant details such as the USB and AUX ports in the armrest and the quick-release seat heating were pleasing. After 15,000 km, the test editor summed up: “Nice car. Suspension, engine, seats, efficient navigation system and spacious interior - the car is four and a half points on a 5-point scale. "

Despite the fact that a number of shortcomings were soon revealed, none of them changed the positive attitude towards the Mazda CX-5. Among the most annoying little things are the following: the license plate lamp constantly falling out of the holder, too small pockets in the doors, carelessly laid carpet and poor visibility to the rear.

The carpet is attached very weakly: one hand movement, and it forms a slide.

Unfortunately, the idyll soon ended. At the mark of 34,224 km, while driving on the highway, the Mazda CX-5 exposed its dark mask. The engine malfunction indicator came on and the oil level too low message came on. This scared the driver in earnest. As if that weren't enough, the on-board computer warned of the risk of engine jamming.

I had to react quickly: braking, driving into the emergency lane and turning off the engine. The hood is up, the dipstick is in your hands, and on it ... the oil level is normal. After starting the engine, all messages disappeared as if by magic. Is it possible that this was a false alarm?

Not really. From that moment on, the message appeared quite regularly, and then disappeared again. Of course, this is not a normal situation. Therefore, it was decided to reduce the waiting time for the next maintenance scheduled for 40,000 km and visit the service now. After draining the old oil, it turned out that the grease was badly worn out and thinned. It is strange that the on-board computer did not offer to hurry up with a visit to the service. Perhaps Mazda engineers should take care of this ...

Perhaps the computer would have reported this if, during a previous visit to the service, the mechanics of the dealership had installed the latest version of the ECU software available at that time on the test Mazda CX-5. Amnesia prevented service staff from updating navigation maps. Badly! - it is said very mildly. Fortunately, nothing could hold back the Mazda CX-5, and she boldly swallowed thousands of kilometers. Everything went according to plan, and the crossover collected flattering reviews from test editors over and over again.

At 87,389 km, the ominous engine malfunction indicator came on again. Another unscheduled visit to the official service center again revealed the inevitability of the influence of the human factor. During a recent maintenance visit, the mechanic forgot to reset the on-board computer. Therefore, a smart "piece of iron" assessed the current state of the oil based on outdated data and concluded that it was time to replace it.

The volume of the trunk is 503 liters, and with folded backs of the rear seat 1620 liters.

Two mistakes made by specialists in one test? It's too much. Mazda representatives were similarly concerned about what was happening and breathed a sigh of relief when the Mazda CX-5 crossed the finish line at the 100,000 km mark. But it's too early to relax. Ahead is a complete analysis of the car. Everything was going great, until the moment when the front brakes fell into the hands of specialists. The DEKRA expert stated that the brake pads had shattered and left deep scratches on the brake disc.

It was accidentally discovered that the installed brake pads are designed for short, short trips. They are not suitable for continuous and long journeys. Shoe condition after 20,000 km of run and final measurements of dynamics and braking.

Guess whose fault it is? That's right, once again failed Mazda service in Germany. During an extreme revision of the brakes, someone came up with a brilliant idea to install non-original budget pads on the test Mazda CX-5, suitable for rare and short movements. After a while, the owner would hardly have been able to notice this. Mazda engineers were surprised to hear such conclusions and could not believe it, claiming that only original components are installed in dealer services. If this happens in civilized Germany, then why wonder in Russia?

A real sight. The plastic protection works perfectly. Engine, transmission and attachments are clean and dry.

Thus, the German Mazda dealer network has shown dark spots on its impeccable reputation. These events brought to naught - the chances of the test Mazda CX-5 to take the top line in the endurance rating. Fortunately, the deficiencies did not affect the positive attitude towards the car, as well as the excellent condition of the components inspected after dismantling. Mazda CX-5 with a 2.2-liter diesel engine is an excellent car, which deservedly received an excellent rating.

The boost pressure is generated by a two-stage turbocharger. This technique guarantees a powerful increase in traction even at low revs. After 100,000 km, it is in excellent condition.

Chronology of major events

11,600 km - the right license plate illumination lamp falls out of the latch.

36 224 km - alarm message about too low oil level.

45,997 km - excellent snow behavior.

50 521 km - high engine speed after a cold start. Irritating at low temperatures.

80 440 km - replacement of front brake discs and pads.

87 389 - the engine malfunction light comes on. Another unscheduled visit to the service.

The plastic strips on the underside of the body are secured with plastic clips. But during the test they all got loose.

Specifications Mazda CX-5

Expenses

Test measurements

Average fuel consumption (start of testing) - 6.3 l / 100 km.

Average fuel consumption (end of test) - 6.6 l / 100 km.

Measurement of power at the stand (end of the test) - 110.1 kW / 150 hp.

Average fuel consumption according to the EEC standard is 5.67 l / 100 km.

Conclusion

As it turned out, even careless maintenance could not stop the Mazda CX-5 on its way to the finish line, and did not prevent it from getting high marks. If the mechanics were more attentive and responsible, then the Mazda CX-5 could well become the leader of the rating. In any case, the car left only positive impressions. Mazda has once again proved that its cars are reliable, and they rightfully occupy the highest positions in the Auto Bild rating.

If something is wrong with the Mazda CX-5, then "Check-Engene" does not go out, or it lights up again after a while. It can also blink, which clearly indicates a serious malfunction. This indicator will not tell the owner of Mazda what exactly the problem is, it draws attention to the fact that diagnostics of the Mazda CX-5 engine is required.

Since all foreign cars, not excluding the Mazda CX-5, are tightly tied to electronics, a huge number of sensors monitor the operation of the car. Therefore, diagnostics of the Mazda CX-5 engine is, by and large, checking the most important unit of the car, with the exception of the suspension, which is checked mechanically.

There is a large number of specialized equipment for diagnostics of the Mazda CX-5 engine. There are compact and fairly versatile scanners that not only professionals can afford. But there are times when ordinary portable scanners do not detect malfunctions in the Mazda CX-5 engine, then diagnostics must be carried out exclusively with licensed software and a scanner from Mazda.

Mazda Diagnostic Scanner Shows:

• Throttle valve opening percentage;
• Engine speed in rpm;
• Mazda CX-5 engine temperature;
• Voltage in the Mazda CX-5 on-board network;
• The temperature of the air sucked into the engine;
• Ignition timing of the Mazda CX-5;
• Fuel injection time by the injector. Displayed in milliseconds;
• Readings of the Mazda CX-5 air flow sensor;
• Readings of the oxygen sensor Mazda CX-5;

1. To diagnose the Mazda CX-5 engine, first of all, the engine compartment is inspected visually. A serviceable engine should not have any leaks of technical fluids, be it oil, coolant, brake fluid. In general, it is important to periodically clean the engine of the Mazda CX-5 from dust, sand, dirt, this is necessary not only for aesthetics, but also for normal heat dissipation!

2. Checking the oil level and condition of the Mazda CX-5 engine, the second step of testing. To do this, you need to pull out the dipstick, and also look at the oil by unscrewing the filler cap. If the oil is black, and even worse black and thick, then this indicates that the oil has changed for a long time.

If there is a white emulsion on the filler cap or you can see how the oil foams, then this may indicate that water or coolant has entered the oil.

3. Checking the Mazda CX-5 spark plugs. Remove all plugs from the engine; they can be checked one at a time. They must be dry. If the candles are covered with an insignificant layer of yellowish or light brown carbon deposits, then you should not worry, such carbon deposits are quite normal and permissible, and do not affect the work.

If there are traces of liquid oil on the Mazda CX-5 candles, then the piston rings or valve stem seals are likely to be replaced. Black carbon deposits indicate an over-enriched fuel mixture. The reason is improper operation of the Mazda fuel system, or a too clogged air filter. The main symptom will be increased fuel consumption.

Red plaque on Mazda CX-5 candles is formed due to low-quality gasoline, which contains a large amount of metal particles (for example, manganese, which increases the octane number of the fuel). Such a plaque conducts current well, which means that with a significant layer of this plaque, the current will flow through it without forming a spark.

4. The ignition coil of the Mazda CX-5 does not often fail, most often this happens due to old age, insulation is damaged and a short circuit occurs. It is better to change the coils in accordance with the mileage according to the regulations. But it happens that a breakdown is caused by bad candles or punctured high-voltage wires. To check the Mazda coil, it must be removed.

After removal, you need to make sure that the insulation is intact, there should be no black spots or cracks. Next, a multimeter should go into the course, if the coil is burnt out, then the device will show the maximum possible value. You should not check the Mazda CX-5 coil using the old-fashioned method for the presence of a spark between the spark plugs and the metal part of the car. This method takes place in old cars, while on the Mazda CX-5, due to such manipulations, not only the coil can burn out, but also the entire electrics of the car.

5. Is it possible to diagnose engine malfunction by smoke from the exhaust pipe of the Mazda CX-5? Exhaust can tell a lot about the condition of an engine. In the warm season, no thick or bluish smoke should be visible from a serviceable car.

If white smoke is visible, then this may indicate a burnt-out gasket or leakage in the cooling system of the Mazda CX-5. If the smoke is black, then at best these are problems due to an over-enriched fuel mixture. At worst, problems with the piston group.

If the smoke has a bluish tint, it indicates that the Mazda CX-5 engine uses oil. At best, it will require replacing the valve stem seals, at worst, repairing the piston group. All this fumes greatly clog and reduce the life of the Mazda CX-5 catalyst, which cannot cope with the cleaning of such impurities.

6. Diagnostics of the Mazda CX-5 engine by sound. Sound is a gap, this is what the theory of mechanics says. There are gaps in almost all moving joints. This small gap contains an oil film that prevents parts from touching. But over time, the gap expands, the oily film can no longer be distributed evenly, friction of the parts of the Mazda CX-5 engine occurs, as a result of which very intense wear begins.

Each node in the Mazda CX-5 engine has a specific sound:

• A loud, frequent sound heard at all engine speeds indicates the need to adjust the valves;
• An even knock, which does not depend on the speed, is caused by the valve-distributor mechanism, which indicates the wear of its elements;
• A distinct short knock, increasing at higher revs, warns of the imminent end of the connecting rod bearing.

7. Diagnostics of the cooling system of the Mazda CX-5 engine. With proper operation of the cooling system and sufficient heat dissipation, after starting the engine, the liquid circulates only in a small circle through the stove radiator, which contributes to the rapid warming up of both the engine itself and the Mazda CX-5 interior in the cold season.

When the normal operating temperature of the Mazda CX-5 engine is reached (of the order of 60-80 degrees), the valve opens slightly to a large circle, i.e. the liquid partially flows into the radiator, where it gives off heat through it. In case of reaching a critical level under 100 degrees, the Mazda CX-5 thermostat opens to the full, and the entire volume of liquid passes through the radiator.

Together with this, the radiator fan of the Mazda CX-5 is turned on, it contributes to better blowing out of hot air between the radiator cells. Overheating can damage the engine and require costly repairs.

8. Typical malfunctions of the Mazda CX-5 cooling system. If the fan does not work when the critical temperature level is reached, then first of all it is necessary to check the fuse, then the Mazda CX-5 fan itself and the integrity of the wires to it are examined. But the problem may turn out to be more global, perhaps the temperature sensor (thermostat) is out of order.

The performance of the Mazda CX-5 thermostat is checked as follows: the engine is preheated, a hand is applied to the bottom of the thermostat, if it is hot, then it is in good order.

More serious problems may arise: the pump breaks down, the radiator of the Mazda CX-5 leaks or clogs up, the valve in the filler cap breaks. If problems arose after replacing the coolant, then most likely an air lock is to blame.

Starting and stopping the engine

Car driving

NOTE

If the pushbutton indicator
engine start (green) flashing, check
that the electronic key is with you (on
vehicles with instrument cluster type
A (page 4-48) messages are displayed on
instrument cluster).

If the indicator of the pushbutton switch is
engine ska (green) flashes when there is
you have an electronic key, attach the key
to the engine start switch and turn
engine (on vehicles with a combination
type A devices (page 4-48) messages from
brawling on the instrument cluster). More
for details, see p.
4-10 ("Starting the engine when the element is discharged
power supply of the electronic key ").

ATTENTION

Lit red signaling device "Key" on
dashboard and flashing light
pushbutton switch for starting the engine (yellow
th) may indicate a malfunction
engine starting systems. It may not allow
start the engine or turn the switch
starting the engine in ACC or ON state
(on vehicles with instrument cluster type
A (page 4-48) messages are displayed on the combination
nation of devices). Necessary immediately
contact the service station of the official
a Mazda dealer to check the vehicle.

NOTE

In the following cases, the alarm
Tor "Key" (red) starts flashing when
an attempt by the driver to press the start switch
engine. This warns the driver that
that switching to the ACC state is not possible.
even from the OFF position (on a car
with instrument cluster type A
(p. 4-48) messages are displayed on the computer
binning devices).

Battery completely discharged
electronic key.

The electronic key is out of range.
mi coverage area of ​​the system.

The electronic key is located in the area where
signal reception by the system is difficult
(p. 3-8).

In the area of ​​the system there is
a different brand of electronic key, which
is similar to yours.

(Emergency engine start)
Lighted signaling device "Key" (red)
and the blinking indicator of the push-button
the engine start switch (yellow) may
indicate a system malfunction
starting the engine (on vehicles with a combination
type A devices (page 4-48) messages
displayed in the instrument cluster).
You must immediately contact
service station of an authorized dealer
Mazda for car repair. In such
the case is possible forced emergency
starting the engine. Press and hold
push button switch for starting the engine,
until the engine starts. In case of emergency
starting the engine is also necessary so that
the usual conditions for starting the engine were fulfilled:
the electronic key must be in the
the side of the car, the pedal must be pressed
trance-
mission) or clutch pedal (vehicles with
manual transmission).

Starting and stopping the engine

Car driving

NOTE

After an emergency start of the engine, the
congestion "Key" (red) remains lit,
and the start button switch indicator
motor (red) continues to flash.

(Cars with automatic transmission)
If the selector lever is in position
N (Neutral), then the "Key" indicator (green-
ny) (for some versions
car), as well as the indicator of the push-button
engine start switch (green),
will not burn.

7. Press the engine start button

after both indicators light up:
Key indicator (green) (for some
vehicle variants) and indicator
torus pushbutton switch
(green).

NOTE

After starting the engine, the push-button indicator
engine start switch (yellow)
goes out, and the start button switch itself
the engine will switch to ON.

(SKYACTIV-G 2.0, SKYACTIV-G 2.5)
After pressing the engine start switch
body and until the engine is started, you can
hear a small noise of a worker
the fuel pump coming from the zone of distribution
the position of the fuel tank. However, this is not
indicates any malfunction
car.

(SKYACTIV-D 2.2)

The starter will not start working until
the candlestick indicator goes out
incandescent.

If after heating the glow plugs
leave the engine start switch for a long time.
switch in ON state when not in operation
engine, then after a while the candles
the incandescent may turn on again.
The power indicator will light up.
glow plugs.

Do not release the pedal when starting the engine.
clutch (vehicles with mechanical
transmission) or the brake pedal
(cars with automatic trans-
mission) until the combination
the instrument does not go out, the indicator
glow plugs and will not start
engine.

If the clutch pedal (vehicles with
manual transmission) or pedal
brakes (cars with automatic
transmission) was released before
the engine has started, press again
clutch pedal (vehicles with mechanical
transmission) or pedal
brakes (cars with automatic
transmission) and press the button
engine start switch.

Starting and stopping the engine

Car driving

8. After starting, run the engine for

idling for about 10 seconds (prohibited in
Germany).

NOTE

Do not operate the engine outside of
high speed of the crankshaft and high
load until the engine warms up to normal
operating temperature.

(Germany)

Drive off immediately after starting the engine.
la. However, do not operate the engine.
tel at high speeds of the crankshaft and
with high load until the engine warms up to
normal operating temperature.

(SKYACTIV-G 2.0, SKYACTIV-G 2.5)

Regardless of the thermal state
engine (engine warm or not)
the engine should be started without
pressing the accelerator pedal.

If the engine does not start from the first
attempts, ask for further
instructions for the subsection "Instructions
on starting the engine when over-enrichment
air-fuel mixture "section" B
in case of difficulties when starting the engine ".
If the engine still does not start -
therefore, contact a service station
Authorized Mazda Dealer (pages 7-37).

(SKYACTIV-D 2.2)
If the ambient temperature is below
- 10 ° C, then for about three minutes
maximum crank speed
the shaft will be limited. This is foreseen in
as a protective measure against damage
engine.

NOTE

(Cars with manual transmission
and i-stop system)
If the engine has stalled, then it can be started
by pressing the clutch pedal for 3
seconds after stopping the engine. In re-
the following conditions restart
the engine with the i-stop system is not possible even
when pressing the clutch pedal:

The driver's door is open.

The driver's seat belt is unfastened.

After stopping the engine, the clutch pedal
Niya was not completely released.

The clutch pedal is fully depressed.
new engine.

Starting and stopping the engine

Car driving

Starting the engine when the element is discharged

electronic key supply

ATTENTION

If you start the engine with the key to
engine start switch (with discharged
battery of the key or its malfunction),
avoid the following conditions.
Otherwise, the system will not be able to correctly
receive a signal from the key and the engine may not
start up.

The key must not touch any metal
objects, as well as metal parts
other keys.

In the area near the key, there should be no
passable keys or ignition keys from others
cars equipped with an immobilizer
rum.

In the area near the key there should be no
electronic payment cards or electronic
new passes.

If the engine cannot be started due to
masked battery of the key, for starting
engine, use the following procedure.

1. Continue to depress the brake pedal all the way.

starting the engine.

2. (Cars with manual transmission)

Keep holding the clutch pedal
fully squeezed out until the engine starts completely.

3. Make sure the pushbutton indicator is

The engine start indicator (green) flashes.

4. When the indicator of the push-button flashes

the engine start switch (green) attached
Push the key to the start button switch
back side of the motor (as shown in
figure).

Indicator

Push button switch
starting the engine

NOTE

Touching the engine start switch
with the other side of the key, orient the key so that
so that the button for locking the locks is facing
up.

5. Make sure the pushbutton indicator is

The starter motor (green) lights up.