Cooling system indicator light
The light signals overheating or a drop in the coolant level. When the ignition is turned on, it starts to flash, confirming that the system is ready for operation.
If the lamp does not go out after starting the engine or starts flashing while driving, then this is a signal of either:
- a) engine overheating or
- b) the coolant level in the tank drops below the norm. In this case, you should stop, turn off the engine and check the coolant level. If necessary, top up the liquid.
Caution! Be careful when opening the expansion tank cap of the cooling system.
The cooling system of a warm engine is under pressure, which is why there is a risk of burns when liquid is ejected. Therefore, before unscrewing the plug, let the engine cool down.
Do not place your hands under the radiator fan. It may turn on unexpectedly even when the ignition is off.
If the coolant level is normal, then the cause of overheating may be a failure of the cooling system fan. Check and, if necessary, replace the fuse for this fan.
On a four-cylinder engine, the V-belt that drives the water pump may break.
If the cooling system indicator lamp does not go out, although the coolant level and temperature are normal, then you cannot continue driving - you should seek qualified assistance. You cannot continue driving if the V-belt breaks either.
If the cause of the malfunction is only in the cooling system fan, then, provided that the coolant level is normal and the indicator light has gone out, you can drive to the nearest workshop yourself, using the cooling effect of the oncoming air flow. However, you should avoid forced idle mode and coasting.
Brake system warning light
When the ignition is turned on, the control lamp starts to flash, confirming that the system is ready for operation. If it does not flash, then you should find out the reason as soon as possible.
The indicator light stays on continuously when the ignition is on if the brake fluid level is below normal.
Attention! If the control lamp does not go out or lights up while driving, this is a signal that the brake fluid level in the expansion tank has dropped. If, when the lamp lights up, the brake pedal travel has increased freely, then one of the two brake hydraulic circuits may have failed. In this case, you can, being careful, drive to the nearest workshop, not forgetting that the braking distance has increased, and more force will need to be applied to the brake pedal.
Oil pressure warning light
The indicator light should come on when the ignition is turned on and go out after the engine starts.
If the indicator lamp does not go out or lights up while driving (if the rotation speed exceeds 2000 rpm, a buzzer signal is also heard), then you need to stop, turn off the engine, check the oil level and top it up if necessary.
If the light continues to burn, although the oil level is normal, then you cannot continue driving. In this case, you also cannot start the engine and leave it idling. You should seek qualified assistance.
Note: The oil pressure indicator light is not an oil level indicator.
Therefore, the oil level should be checked regularly, preferably at every refill.
Direction indicator light
The indicator light flashes synchronously with the direction indicator. If one of the direction indicators fails, the indicator light flashes approximately twice as fast, excluding driving with a trailer.
Battery charging indicator light
The indicator light comes on when the ignition is turned on. It should go out after the engine starts.
If the light does not go out or lights up while the car is moving, then you can usually still get to the nearest repair shop. Since this continuously discharges the battery, you should turn off all current consumers except those absolutely necessary.
On cars with an automatic diagnostic system, there is an additional control lamp that allows you to monitor the battery voltage. In addition, the voltage of the on-board network can be checked using a voltmeter.
Trailer direction indicator light
When driving with a trailer, the indicator light flashes in sync with the direction indicators.
If one of the direction indicators on the vehicle itself or on the trailer is faulty, the indicator light does not flash.
Airbag system indicator light
The indicator light should come on after the ignition is turned on and go out after about 10 seconds.
The system is faulty if the indicator lamp does not light or does not go out when the ignition is turned on, or lights up while the vehicle is moving.
Pre-heating system indicator light
This light is only present on cars with diesel engines. When starting a cold engine, the indicator light comes on when the key is turned in the ignition. If this does not happen, there may be a defect in the preheating system. After the preheating is complete, the brightness of the light decreases and the engine can be started.
Control lamp for anti-lock braking system (ABS) and electronic differential lock (EDL)
The readiness for operation of the main ABS components is checked before and during driving by the electronic control unit.
The indicator light comes on when the ignition is turned on and should go out immediately after the engine starts.
If the differential lock is engaged on a four-wheel drive vehicle, the indicator light goes out only after the lock is disengaged.
If the ABS indicator light does not go out or lights up while driving, the system is faulty. In this case, the car brakes in the same way as without ABS.
Cars with electronic differential lock
The failure of the EBD is signaled by the ABS indicator light. In case of failure, it is recommended to contact the workshop immediately.
High beam headlight indicator light
The indicator light comes on when the high beam is switched on and also when the intermittent light signal is used.
Parking brake indicator light
The indicator light comes on when the ignition is switched on if the parking brake lever is pulled up. It goes out after the parking brake lever is released.
Engine control unit indicator light
This light is only present on vehicles equipped with a 66 kW turbocharged diesel engine. The light comes on when the ignition is switched on and should go out once the engine has started.
If the indicator light does not go out or lights up while the car is moving, then either the engine itself or the electronic control unit is faulty. The control unit automatically switches to the emergency program, and the effective engine power is slightly reduced. In such cases, you should contact a workshop as soon as possible.
Parking light indicator lamp
The indicator lamp lights up when the ignition and parking lights are turned on.
[The article is a reprint of material from: audimanual.ru]