For each car, including Renault Duster, it is extremely important that all key units work in a clear and coordinated manner. This rule primarily refers to the functionality of the engine.

The driver can control the operation of various components and elements of the car visually according to various indications of control devices located on the instrument panel. If a few decades ago the owner of a car had to look and listen to determine how the engine works, today the correct operation of the main unit can be easily monitored using a special indicator.

Almost everyone modern car equipped with a control signal such as check engine. Literally translated, this term means "check the engine." AT ideal The "Check" light should light up at the start of the engine and go out after a few seconds.

In the case when the indicator does not go out or, on the contrary, turns on while the car is moving, you should think about diagnostics and maintenance in a specialized car service. Activating the check indicator is sometimes very scary for novice motorists. Do not be afraid of this "assistant", because it is he who will promptly indicate a possible malfunction, which means to secure the movement.

Why does the indicator light up?

burning light bulb Check engine may indicate various vehicle problems. But, as practice shows, the most common of them are:
poor quality fuel;
insufficient oil level;
faulty spark plugs;
incorrect work ignition coils;
faulty lambda probe;
failed catalytic converter exhaust gases;
bad injectors;
breakdown of the fuel pump and / or clogged fuel filter;
non sealed lid fuel tank;
malfunction of high-voltage wires;
failed DMRV

Ways to fix

The very fact that the “Check” indicator lights up while the car is moving should alert the driver, because this is an unequivocal signal in order to sign up for diagnostics at the auto repair center to identify and eliminate possible faults. But if the car owner has sufficient experience, skill and skills, then he can fix a number of malfunctions on his own.

Low fuel level, as well as poor quality gasoline, is the most common cause of an indicator fire. In this case, it is recommended to completely drain the low-quality fuel from the gas tank and completely fill the car with high-quality gasoline again.

With a low oil level - everything is simple. Using the dipstick, the level is checked and the required amount is added.

The main element that guarantees ignition fuel mixture, are spark plugs. In the event of a malfunction of at least one candle, the correctness of the car is not guaranteed. It is necessary to carefully inspect all candles, if necessary, remove soot from them or simply replace them. You can only change those that are faulty, but professional car mechanics recommend changing the entire kit at once in order to avoid possible troubles in the ignition system. Timely replacement one or more candles will be the key to the correct operation of the exhaust system catalyst and the car engine.

If there is suspicion that the cause lies in the ignition coil, it is necessary to check for the presence of a spark and resistance at the output.

In the event of a malfunction of the oxygen sensor (lambda probe), there is only one way out - replacing the spare part. It is part of the exhaust system and is partly responsible for controlling fuel consumption. The fact is that after a certain period of time, the sensor can be covered with a layer of oil soot (used engine oil), and therefore its readings no longer have the original accuracy.

The purpose of the catalyst is to transform the exhaust into a cleaner gas mixture. Its malfunction is indicated not only by a check indicator, but also by an almost halved engine power. In order to change the catalyst, you will first have to remove the muffler. As a rule, such a breakdown is typical only for cars with impressive mileage.

A common cause of bad injectors is poor quality fuel. The injectors must only be replaced.

petrol pump and fuel filters often cause breakage power units car. As a rule, these elements, and especially fuel filters for diesel engines Renault needs a complete replacement.

Broken tightness of the fuel tank cap also often causes the "Check" light to ignite. If the cover is not tightened enough or there are chips, cracks, or other defects on its surface, then air will necessarily begin to pass through, which will invariably lead to increased consumption fuel.

Sensor mass flow air is responsible for adjusting the amount of air supplied for ignition. Malfunctions of this element can lead to incorrect consumption of gasoline, to an increase in the amount of carbon dioxide in the exhaust system, reducing engine power and disturbing the smoothness of the vehicle. Requires replacement. To keep the sensor in good condition for a long time, do not forget about the periodic replacement of the air filter.

If a high voltage wires have poor insulation, this will also affect the operation of the car as a whole. In this case, the ECU recognizes a malfunction and a notification occurs by lighting up the check indicator. As a rule, to eliminate it is necessary to completely replace the wires.

Diagnostic Gadgets

In order to independently identify the cause of engine malfunctions, you can also additionally use one of the two proposed options.

Purchase an on-board computer that can not only read all working errors, but also decipher them, and also, if necessary, periodically delete them from its memory. Such gadgets are usually installed in any place convenient for the driver near windshield, but most car owners choose a central duct point.

Buy a special scanner to use a computer program and an ordinary smartphone to read, identify and decipher possible errors in the operation of important vehicle components. The scanner has a compact size and is quite mobile. Its fixation is possible through a standard diagnostic connector, and the connection with the phone is made via Bluetooth.

Thus, the “Check engine” light is the control indicator with which you can monitor the correct operation of almost every element of the engine. Therefore, its ignition should be treated with utmost care.

Very often, car owners ignore this signal, naively believing that the cause of the fire lies only in the use of low-quality fuel, and therefore simply temporarily turn off battery to turn off the indicator. But this is by no means a way out. Such neglect can subsequently lead to serious engine damage and to its forced overhaul, which is very costly.

Therefore, it is more expedient, when the indicator signal is on, to call in the nearest car service for diagnostics, identification and timely elimination of possible problems. Only in this case, you can continue to operate your car with a sense of complete confidence and safety in its operation.

Attentiveness and timely repair is the key to a comfortable movement, which increases with every kilometer traveled.

The Renault-Repair technical center employs unique specialist - COTECH. it certified electrical diagnostician Renault the highest qualification, who knows everything about the device and repair of Renault cars, and also has an official permit for complex diagnostics.

There are only a few such people, each dealership Renault is obliged to keep such an employee on the staff.

If KOTECH cannot solve some technical issue, then the next step is a request to the manufacturer's research center. The number of electronic control systems in cars is growing every year, their diagnosis is becoming more complicated. The experience and qualifications of COTECH Renault is guarantor of fault detection with minimal time spent on diagnostics.

Service	Price
Diagnostics with the connection of the Renault Can Clip diagnostic scanner and reading errors	550r
Simple work (replacement of a sound signal, steering column switch)	500 - 1500r
Works of medium complexity related to troubleshooting in the wiring, with a partial analysis of the interior	3000 - 4000r
Complex work (wiring replacementRenault, repair of electronic control units)	from 10000r
Renault engine diagnostics for gasoline engines(computer diagnostics, compression test in cylinders)	1050r
Renault engine diagnostics for gasoline engines with about removing the manifold (Nissan engine)	3150r

The auto concern Renault delivers to the Russian automotive market models that are maximally adapted to our conditions: bad roads, low-quality fuels and lubricants and motor fuel. But even with them, the consumption of gasoline and oil begins to increase over time; there are various knocks, creaks, noises. Any deviations from the normal operation of a Renault car are a reason to present the car for diagnostics at a specialized car service.

Most frequent calls:

• Renault won't start!
• On the dashboard an error has occurred!
• The check for Renault is on fire!
• Alarm not working!

In our technical center the cost computer diagnostics Renault with the connection of the Renault Can Clip diagnostic scanner and reading errors - 550 rubles. In a short time it is possible to produce diagnostics of most control systems: automatic transmission, engine, ABS/PBS, cruise and climate control, etc. The price of troubleshooting identified during Renault diagnostics depends on the amount of work required.

Simple work- replacement of the sound signal, steering column switch are 500 - 1500 rubles. Works medium difficulty related to troubleshooting in the wiring, with a partial analysis of the car's interior usually - 3000-4000 rubles. Prices on complex work, such as: replacement of wiring, repair of electronic control units begin from 10000 rubles.

In addition to computer diagnostics, the Renault-Repair technical center offers:

• Renault engine diagnostics for gasoline engines (computer diagnostics, cylinder compression check) - 1050 rubles. With the removal of the collector (Nissan engine) - 3150 rubles
• Renault air conditioner diagnostics (downloading freon, evacuating the system, refueling - 1200 rubles, searching for a leak - 800 rubles)
• diagnostics running Renault ( is free, during any work)

All modifications Renault Sandero equipped with an on-board digital system capable of diagnosing errors and malfunctions in the operation of all units with integrated sensors. The first series of the car are equipped with electronic firmware with code 6001, on later models with on-board computer firmware code 6002. As for the engine, fuel supply system, ABS, the malfunction indicator is located in the dashboard light panel in the instrument cluster. Decryption of the malfunction of a particular node in this case is not provided.

Diagnosis can be made in two ways: using the on-board self-diagnosis program or an external test device.

Entering diagnostic mode

The self-diagnosis mode is blocked by the program. Before checking, it is necessary to insert the key into the ignition lock. Activation of the diagnostic mode of any Renault Sandero model (except for the Prestige configuration, where it is permanently active) is performed by pressing the pin button on the dashboard. Without releasing the button, turn the key to the ignition on position (position "M"). Keep the button pressed for a few seconds until the numbers appear on the dashboard screen. After the information appears, the button should be released. In this case, while the test mode is active, the arrows of the speedometer and tachometer will make a constant movement from the zero position to the extreme points.

Information display

The information is displayed through four consecutive screen images. Changing images is done by a short press on the button.

Instrument testing

You can get more if you want. full information on the status of Renault Sandero systems. The fact is that the appearance of malfunctions is signaled by regular signal lamps on the dashboard. Data on what kind of breakdown takes place is not displayed on the scoreboard. In order to get a complete picture, you need to use a professional tester (adapter, scanner) or a special computer program that is compatible with the Windows package, which can be installed on a laptop. There are also dedicated apps for smartphones and tablets. The main thing is to choose the appropriate type of connecting cable.

As for the scanner, then, as a rule, a certain type of adapter is intended for each car model. Some testers transmit information directly to a computer via Bluetooth.

An external diagnostic device is connected to electronic system Renault Sandero through a 16-pin OBD-2 connector. It is located in the glove box of the front panel and is closed with a plastic plug.

During testing, the display of the device will not display information about the damage, but the so-called error code.

Basic trouble codes

DF 002 - Throttle potentiometer malfunction.

DF 003 - damage to the temperature sensor of the air massmeter (air meter).

DF 004 - failure of the engine cooling system sensor.

DF 006 - malfunction of the detonation channel.

DF 014 - valve failure of the fuel vapor recovery system.

DF 017 - failure of the crankshaft position control system.

DF 018 - clogged oxygen sensor.

DF 022 - failure of the control unit.

DF 032 - failure of the warning lamp for overheating of the cooling system.

DF 038 - the heater is clogged.

DF 044 - the immobilizer has failed.

DF 061 - ignition modules (coils) I and IV are damaged.

DF 062 - the same II and III.

DF 064 - failure of the speed sensor.

DF 106 - Catalyst damaged.

DF120 - The on-board diagnostics indicator burned out.

DF 253 - there is no full contact between the engine and the "mass".

DF 261 - leakage of the fuel pump relay.

DF 052 - DF 055 - damage to injectors I, II, III and IV, respectively.

A complete list of Renault Sandero error decoding can be found by clicking on this link.

At self-repair or replacing damaged parts, the error code will remain in the system memory. Its removal is carried out using the same scanner.

A complete list of Renault Sandero error decoding

P3500 Immobilizer Circuit
P3501 Climate communication error
P3502 Communication error with BVA (cruise)
P3503 Communication error with ABS
P3504 Refrigerant pressure sensor circuit
P3505 Error fuel system
P3506 Cylinder #1 and #4 ignition coil circuit shorted to ground
P3507 Cylinder #2 and #3 ignition coil circuit shorted to ground
P3508 Error Circuit of the ignition coil of cylinders No. 1 and No. 4
P3509 Error Circuit of the ignition coils of cylinders No. 2 and No. 3
P3511 The actuator relay control circuit is shorted to ground
P3515 Circuit solenoid valve adsorber purge closed to +bat
P3517 Warning light circuit onboard system diagnostics
P3518 Coolant temperature warning light circuit shorted to +bat
P3519 Coolant temperature warning light circuit shorted to ground
P3520 Coolant Temperature Alarm Circuit Open
P3521 Coolant temperature warning light circuit
P3522 Control circuit idle move closed to +bat
P3523 Circuit electronic pedal cliff
P3524 Electronic pedal circuit short to +12 volts
P3525 Electronic pedal circuit short to ground
P3526 Electronic pedal circuit malfunction
P3527 Climate control circuit open
P3528 Climate control circuit short to +12 volts
P3529 Climate control circuit short to ground
P3530 Climate control circuit malfunction
3500 Electronic anti-theft engine immobilizer circuit
3501 Climate communication error
3502 Communication error with BVA (cruise)
3503 Communication error with ABS
3504 Refrigerant pressure sensor circuit
3505 Fuel system error
3506 The ignition coil circuit of cylinders No. 1 and No. 4 is shorted to ground
3507 The circuit of the ignition coils of cylinders No. 2 and No. 3 is shorted to ground
3508 Error Circuit of the ignition coil of cylinders No. 1 and No. 4
3509 Error Circuit of the ignition coils of cylinders No. 2 and No. 3
3511 The actuator relay control circuit is shorted to ground
3515 Canister purge solenoid valve circuit closed to +bat
3517 OBD signal lamp circuit
3518 The alarm lamp circuit of the emergency coolant temperature is shorted to + bat
3519 The alarm lamp circuit of the emergency coolant temperature is shorted to ground
3520 The alarm lamp circuit of the emergency coolant temperature is broken
3521 Alarm lamp circuit for emergency coolant temperature
3522 Idle control circuit closed to +bat
3523 Electronic pedal circuit open
3524 Electronic pedal circuit short to +12 volts
3525 Electronic pedal circuit short to ground
3526 Electronic pedal circuit malfunction
3527 Climate control circuit open
3528 Climate control circuit short to +12 volts
3529 Climate control circuit short to ground
3530 Climate control circuit malfunction