Even ten years after the start of production, the Mazda CX-7 has not lost its visual appeal. And taking into account low cost many may consider replacing the sedan with a sporty crossover. But there are a couple of pitfalls to be aware of before buying. Maybe, low price on the Mazda CX-7 was formed not in vain? Below in the article you will get the answer to this question.

A bit of history

In 2007, the CX-7 model made a splash. The first crossover from Mazda with a striking design and powerful engine sold very successfully. To save on taxes, many cars were imported from America (where CX-7s have been sold since 2006). They differ from European ones:

• speedometer in miles;
• no repeaters in the side mirrors;
• richer equipment with a monitor and a rear-view camera.

The excitement subsided noticeably after the first two years of sales due to the fairly frequent warranty cases. The main complaints and problems concerned the engine and turbine. At the end of 2009, the manufacturer released a restyled model, in which he eliminated most of the “jambs” and added several cosmetic changes. In addition, there was a choice of motors. In addition to the only pre-styling 2.3-liter gasoline engine with a turbine, the usual atmospheric 2.5-liter and even a 2.2-liter turbodiesel appeared.

Unfortunately, the reputation has already been damaged and it was not possible to renew the interest of buyers. Therefore, in 2012, the Mazda CX-7 was replaced by a more understandable model for the general public, the CX-5 model.

The closest competitors in terms of “spirit” and price are Subaru Tribeca, Nissan Murano and .

Body and equipment

By the age of ten, there are still no frankly rotten Mazda CX-7s, but there are foci in places of chips or other damage. If the car has not yet been treated with anticorrosive, then you should definitely do it, especially the bottom and lower part of the doors. The hood and front fenders can be protected with a special armored film. The corrosion resistance of the metal and the quality of the paintwork of Japanese cars are traditionally at an average level.

But with the complete set of the Mazda CX-7 everything is in order. Already in the base there is climate control and 6 airbags. A leather interior and high-quality BOSE music is found in 9 out of 10 cars. Before restyling, a monitor with a touchscreen and a rear-view camera was installed only on cars for the American market. After 2009, the CX-7 was enriched with premium Bose Surround Sound music, auto-folding mirrors and a tracking system. dead zones LCA.

Mazda CX-7 engines

Virtually no options, one and only - petrol 2.3 Turbo (238/260 hp). Timid attempts to add a sluggish atmospheric gasoline 2.5 liter to the range. (163 hp) were unsuccessful. A 173-horsepower 2.2-liter turbodiesel can be classified as exotic. Find on secondary market Mazda CX-7 with the last two engines is very difficult.

Therefore, we will talk about the famous turbocharged 2.3-liter, which was borrowed from the Mazda 6 MPS. The motor rides well even with the weight of the crossover. But there was a problem with reliability. Areas of concern:

1. Turbine - according to the reviews of the owners of the Mazda CX-7, it "dies" suddenly and often. But in fact, most often this is preceded by improper operation of the turbocharged engine and poor-quality service.
2. Timing chain - can stretch for 50,000 runs.
3. Coupling VVT-i. The first sign is a crackling sound when starting the engine, in the later stages - a diesel sound of the engine. If this problem is ignored, then the costly overhaul secured.

Before buying, be sure to listen to the engine in a quiet place. It should run smoothly and without any metallic sounds. white smoke from exhaust pipe at idle means an early "death" of the turbine.

It is preferable to choose a used CX-7 with a turbo timer. This at least means that the previous owner thought about the proper operation of the car. If you bought a Mazda CX-7 and don't know if you changed the oil supply pipe to the turbine, then be sure to change it. It is not so expensive, but it can protect against premature failure of the turbine. When using low-quality oil or changing it rarely (less than once every 10,000 km), the tube cokes and then comes “suddenly” from the first item in the list of problem areas.

For motor 2.3 consumption rate engine oil- up to 1 liter per 10,000 km. But unfortunately, real consumption you will know only after the purchase. According to the reviews of the owners of the Mazda CX-7, sharp oil losses are possible without the sensor being triggered. Therefore, it is recommended to regularly (at least once a week), manually check the required oil level in the engine.

Paired with an automatic transmission, the engine is derated to 238 hp, with mechanics - all 260 hp. But mechanics are rare, and more often paired with a 2.5-liter post-styling atmospheric engine. There are rumors about chipovka up to 270-290 hp, but the question arises - will the automatic transmission withstand such a load?

Fuel economy

The appetite of the CX-7 is excellent - rarely anyone manages to keep within 16 liters in the city in a calm mode. On the highway, too, less than 10-12 liters will not work. Therefore, it is quite logical that many owners began to convert their cars to gas. HBO on the Mazda CX-7 is not cheap - from $ 1000. Most often it is BRC or Zavolli, cheaper equipment “refuses” to work correctly due to the fuel injection features of the model (direct injection).

With a quality installation, the owners do not note problems with the operation of the Mazda CX-7 with LPG. Saving money on fuel in the region of 30-40%. The minimum gas consumption in the city is 15 liters of gas and 2-3 liters of gasoline per hundred kilometers. Gasoline is used to cool the fuel injectors.

Gearbox and all-wheel drive

You won’t have to think long about choosing the type of gearbox for the Mazda CX-7. Possible options just three:

1. Rare mechanics for six stages;
2. The Japanese Aisin six-speed automatic is found on the vast majority of CX-7s;
3. After restyling, paired with a 2.5-liter naturally aspirated engine, a five-speed automatic transmission was installed.

All boxes are very reliable, but with runs of more than 200,000 km, natural wear and tear has not been canceled. Before buying, be sure to check the condition of the oil on the dipstick. Black color and a “burnt” smell are a reason to abandon the car or significantly bring down the price. There should also be no jerks when switching. In good condition, the "automatic" switches smoothly and imperceptibly.

According to the official rules Maintenance Mazda, automatic transmission oil change is not provided. But for a significant extension of the "life" automatic box recommended to produce partial replacement oil every 60,000 miles. Just be careful when choosing the type of oil. There are occasions when even official dealers put in the wrong oil Mazda M-V or Mercon 5 (suitable for a five-speed). For a six-speed Aisin automatic transmission, you need JWS3309 approval. Best for price and availability Toyota oil T-IV.

The weak point of the Mazda CX-7 all-wheel drive system is both gearboxes. The problem, however, is not global, but requires constant attention. They are constantly flowing, especially the front. Replacing oil seals helps for a short time (30-40,000 km). If, when replacing the seals, all the joints of the two halves of the gearbox are lubricated with sealant, then this period can be extended twice. But everything is in order with reliability, they fail only with a significant leak gear oil. After restyling, the leakage problem was fixed.

During normal driving, the Mazda CX-7 is front-wheel drive, only when slipping, the rear is connected using a clutch. Permeability at a decent level, but without fanaticism. In winter, high ground clearance and four-wheel drive adds confidence on the road. When overheated, the clutch will automatically disengage. All CX-7 with 2.5-liter gasoline engine were only front-wheel drive. Without all-wheel drive, 2.3 turbos are also found, only from the American market.

Suspension Mazda CX-7

The running gear holds up our roads pretty well, but does it tough. After restyling, Mazda engineers reconfigured the suspension and it became noticeably more comfortable. Relative stiffness and excellent handling match the sporty spirit of the CX-7.

The ball bearing of the lower arm of the front suspension "dies" before the silent blocks, and it only changes as an assembly. The “Kulibins” know how to repress it, so there is a loophole towards saving. Rear wheel bearings are almost in the consumable category, they are rarely enough for more than 60,000 runs. But shock absorbers regularly serve 100-150,000 km.

The front shock absorber mounts sin with extraneous sounds - squeaks and rattling. And replacing with new ones solves the problem for a short time. Craftsmen learned how to make special plastic spacers. It's cheaper than a replacement and lasts a long time.

Handling and brakes

Mazda is controlled clearly and in a sporty way, and this node usually does not bring problems. Even tie rods and tips are unlikely to have to be changed more than once every 100,000 runs. power steering and steering rack regularly serve up to 200,000 km, after which restoration may be necessary. The cost for such work is within reasonable limits - 100-200 dollars.

The brakes are a little worse. They brake perfectly, there are no questions. But overheating often “leads” the brake discs. And it is not necessary for this to drive into a puddle on hot brakes. After restyling, heat dissipation was improved and the problem was gone. Therefore, today it is no longer relevant. Unless the previous owner put cheap analogues. If during braking you feel a beating in the steering wheel, then “knock down” the discount on the purchase of a set of brake discs.

Minor flaws

Misted headlights for the Mazda CX-7 are normal. This disadvantage is best eliminated, otherwise there is a risk of failure of the xenon ignition unit (due to moisture). This can be done with the help of two additional ventilation holes and vent tubes. The tubes must be with a filter element inside to prevent dirt from getting inside the headlight. Detailed Instructions search the forums for "Mazdovodov".

V rear lights from constant heating, landing bases for light bulbs often melt. It is better to install LED lamps in advance to prevent the problem from occurring.

lambda probe or oxygen sensor not very durable. Signs of failure:

• traction disappears;
• abundant White smoke from the exhaust pipe;
• increased fuel consumption.

"Treated" only by replacement.

Outcome

The Mazda CX-7 is enjoyable in many ways. Appearance, space, dynamics, rich equipment. And all this stuff is offered on the secondary market for little money (compared to classmates). But do not buy this car with the last money. Definitely need a margin of safety. If you manage to find a well-groomed copy with the “right” service, then you can drive 50-100,000 km and enjoy a successful purchase. In other cases, the Mazda CX-7 can become a beautiful burden.

No matter what car you drive, an inexpensive domestic car, or a premium foreign car, sooner or later you are faced with engine failure. Power plants of even the most quality cars, for example, Mazda cx7, wear out as a result of constant operation and the influence of high loads. As a result: the engine power is significantly reduced, and at the same time the unit requires more fuel and oil. In this case, it is necessary to solve the engine problem as soon as possible - by paying attention to the early stage of the malfunction and eliminating problems in a timely manner, you save a lot on repairs.

Mazda CX-7 engine overhaul prices:

Works	Price
V4	from 35000 rub.
V6	from 45000 rub.
V8	from 50000 rub.
V12	from 60000 rub.
Removal/installation of a head of the block of cylinders	from 15000 rub.
Timing chain replacement	from 7000 rub.
Timing belt replacement	from 12000 rub.
Computer diagnostics	Is free
Mechanical diagnostics	Is free
	on request
Cylinder block boring	on request
Cylinder block sleeve	on request
Repair, grinding of crankshafts	on request
Manufacture of parts for overhaul of the engine	on request

Free diagnostics auto engine

Leave your details and we will contact you in 15 minutes

Our company provides qualified services, one of our specializations is the repair of the cx 7 engine, the engine of the 2.3 turbo model. Service specialists will conduct high-quality diagnostics power plant quickly and reliably restore optimal engine performance.

Our advantages:

• the company carries out engine repairs using modern equipment that allows for the most accurate diagnostics;
• we provide quality services in a short time;
• with us you get a guarantee for all types of work, as well as a detailed video report on the repair done.

Examples of our work

Our services

Bringing the car to our service, you trust the professionals! First of all, the company's specialists perform accurate diagnostics of the salt installation, to determine the degree of wear of engine parts. Based on the results obtained, we decide what type of work the unit requires, namely:

• current repair - elimination of minor breakdowns that occurred during operation;
• medium repair - partial disassembly of the unit and replacement or restoration of faulty elements;
• overhaul - complete disassembly of the power plant, replacement of damaged parts with new ones.

Types of work performed:

Cylinder block boring	cylinder block liner	Replacing glow plugs
Engine overhaul	Engine pump replacement	Submersible fuel pump replacement
Cylinder head repair	Replacement of pillows of the engine	Replacement of crankshaft oil seals
Replacing the oil pan gasket	Engine pump replacement	Replacement of hydraulic lifters
Replacing the valve cover gasket	Engine mount replacement	Engine flush
Replacing the engine oil pan	Replacing the cylinder head gasket	Fuel system repair
Replacing the high pressure fuel pump	Engine Turbine Replacement	Repressing pistons

After each type of repair, we without fail carry out final diagnostics to make sure that the work is reliable.

How to reach us

Mazda CX7 is a crossover of high comfort, with a pronounced sporty appearance and powerful engine. This car is able to show itself on the road, its aggressive dynamics allows you to quickly overtake and pick up the desired speed, immediately stop and firmly “sit” on the road. Aerodynamic characteristics allow you to press the car to the roadway as much as possible, and all-wheel drive allows you to confidently take turns and quickly pick up speed. Moreover, this car always stands out in the traffic because of its elegant appearance and sporty appearance. All these qualities Japanese car quickly attracted fans of fast and aggressive driving.

But it is not enough to buy a car, it still needs to be serviced in a timely manner so that it is a joy, and does not cause trouble with constant repairs.

Mazda CX-7 were supplied to Russian market in a complete set with an internal combustion engine with a volume of 2.5 liters and 2.3 liters TURBO. In this article, we will tell you about the most common breakdowns of the Mazda CX-7 with a 2.3 TURBO engine and how to prevent them. It is better to prevent than to repair several times more expensive.

power unit

One of the “weakest” units in the CX-7 is the turbine. Turbine resource at correct operation up to 100,000 km of run. Certainly not the most record resource, but still.

The main warning of turbine failure is timely replacement oil, although according to the maintenance regulations 15,000 km are indicated, but in practice this mileage is not real, because mileage in a metropolis due to constant traffic jams (acceleration-braking), the engine experiences enormous loads, should be changed every 10,000 km. A mandatory recommendation is to install a turbo timer, which will extend the life of the turbine.

But if you do not have a turbo timer, before turning off the internal combustion engine, you should let it run for 3-5 minutes for Idling. What does it give? As you know, the turbine is lubricated engine oil and cooled with antifreeze. When the internal combustion engine is stopped and turned off, the hot turbine reaches a high temperature, which contains oil, which stops circulating and simply starts to burn out in the turbine, releasing the corresponding resins, which, in turn, gradually clog the oil channels designed for oil and lubricant circulation. Over time, this can lead to failure of the turbine, and the failure of this unit can lead to serious damage to the internal combustion engine.

Of all the Mazda 2.3 engine lines, the turbo proved to be the most capricious and with a small margin of safety, the engine internal combustion. Timing chains tend to stretch quickly and with a run of 75-90 they should be replaced, it all depends on the driving style, the more aggressive the ride, thus wear will occur faster. This applies to all parts of the car and not only this model, but any car. When the chain is stretched, the engine starts to work unstably, additional noise occurs, various errors appear. It is also worth noting that together with the chain it is necessary to replace the timing gear mounted on the intake camshaft.

Practice has also shown weak fuel injection nozzles. Timely replacement will extend the life of this element. fuel filter and fuel control. You should not refuel at little-known gas stations and do not fill in gasoline not lower than AI-95.

I would like to draw Special attention monitoring the oil level in the engine. At the slightest "oil starvation" irreversible processes occur in the motor.

The result of "oil starvation"

Everything happens after a twist connecting rod bearings, from lack of oil, they stick to the connecting rods and turn. If you suddenly made a critical drop in the oil level and you hear in your engine extraneous noise, turn off the engine immediately and take it to a technical center on a tow truck. You may be lucky and your repair does not include a replacement crankshaft(the part is not cheap, if you try hard you can find 1200-1300 US dollars), it will be enough to replace the liners plus all the costs associated with engine repair.

Suspension

The undercarriage also includes some shortcomings that you should pay attention to and take all necessary measures to prevent serious damage. In the hodovka, the CX-7 has "weak" wheel bearings, mainly the rear and angular gearboxes. In the event of a malfunction, a characteristic hum appears when driving, which causes discomfort in driving, and most importantly, that it is dangerous! If, suddenly, the bearing jams on the go high speed, the consequences can be anything. Imagine a highway, you are driving at a speed of 110 km / h, everything is fine, when suddenly it jams, let's say the right wheel, what happens? Yes, if you are an experienced and attentive driver, you will have time to hold the steering wheel and slow down, but what if not? To prevent premature failure of the bearing, we can only advise wheel balancing control, careful driving, and less “catching” pits on the roads. Unfortunately, the safety margin of the CX-7 hub bearings is not large, perhaps this is a miscalculation of the designers or the quality Russian roads, which the Japanese, of course, did not focus on. The wheel bearings should be replaced immediately at the slightest noise.

About the angular gearbox, one can note the appearance of an oil leak due to weak seals. Mandatory timely maintenance will prevent serious damage to the "razdatki" on the CX-7. As practice shows, the happy owners of the Mazda CX-7 do not attach much importance to maintenance, do not change the oil on time and do not pay attention to oil leaks from the gearbox, which leads to a breakdown of this unit. As a rule, few people are engaged in the restoration of the angular gearbox, and the replacement is carried out entirely.

Cooling and ventilation system

Air conditioning compressors have shown themselves to be very capricious and sensitive to overheating. Due to insufficient cooling of the compressor, it fails.

Poor cooling can be due to clogged radiators, but not from the inside, but from the outside. Everyone knows that the radiator is installed in the nose of the car, between the engine and the bumper. When moving, the radiator is also cooled due to the incoming air flow, and along with this flow, small particles of dust, dirt, fluff and other small insects fly through the radiator. All this mass settles in the radiator cells, thereby obstructing the incoming air, weakening the cooling efficiency. Periodic flushing of the radiator to prevent overheating or insufficient cooling of the engine and auxiliary components. Effective flushing of the radiator is achieved by completely dismantling it from the car.

In addition to the above "sores" of the Mazda CX-7, there are also problems of an electrical nature. For example, the failure of their first oxygen sensor or, as it is also called, a lambda probe. It is difficult to name the cause of the failure of this sensor and it is impossible to predict and establish its service life. Most likely this is due to the quality of fuel in Russia. If this sensor fails, CHEK ENGINE lights up on the panel, the car loses momentum, power drops, fuel consumption increases. Often, after replacing the oxygen sensor, a satisfied customer, leaving the service station, returns again with the following problem: when driving between 2000 and 3000 engine rpm, the car starts to “twitch”, but after passing this threshold it drives as usual. It's all about the malfunction of the wiring harness, its repair or replacement successfully solves the problem of malfunction.

We have described to you quite frequent and characteristic faults Mazda CX-7. Generally nice car, but requires special attention and timely maintenance. If you follow the entire maintenance schedule and monitor the behavior of the machine and the operation of all systems, as well as take preventive measures in time, then you will be able to avoid serious breakdowns, which entails enormous expenses.