Tyre pressure is an essential safety factor of a vehicle. The most common tire damage can be traced back to a gradual pressure loss. This is often noticed by the driver of the vehicle when it is too late. Insufficient tyre pressure causes increased fuel consumption and poor driving characteristics.

In the above-mentioned vehicles, squeaking noises may occur when braking, originating from the front of the vehicle. The noise occurs mainly when braking at low speed and until the vehicle comes to a standstill.

The following symptoms may occur in the above-mentioned vehicles due to faulty engine control unit software:

• Engine cuts out after cold start
• Engine cuts out when disengaging the clutch in coasting mode

The following symptoms may occur in the above-mentioned vehicles due to faulty ESP/ABS control unit software.

Sufficient coolant liquid amount is prerequisite for flawless operating of engine. On this page, we show you the functions of the coolant, the ideal mixing ratio and how to determine the antifreeze content in coolant.

In the above-mentioned vehicles, the engine may cut out again shortly after starting at low outside temperatures (-10 °C). This is often the case when the vehicle has been parked overnight.

If loud, booming noises are heard from the rear of the vehicle, defective rear wheel bearings may be the cause.
The rear wheel bearings may have been damaged by a design-related malfunction of the rear wheel brakes during assembly.

With the above-mentioned vehicle, it may happen that the vehicle interior monitoring system, every so often, triggers the vehicle alarm. A faulty ultrasonic sensor of the vehicle interior’s lamp unit is a possible cause.

The classic low beam is in fact a compromise solution, and it's not without its weaknesses. Thanks to its new light functions, the Advanced Front Lighting System (AFS) eliminates the rigid boundaries of the low beam, thereby significantly improving visibility in the dark and in poor weather.

In the above-mentioned vehicles, a software error may cause one headlamp to remain sporadically on after the lights have been switched off.

A loss of engine power and rough idling in the vehicles mentioned above may be caused by defective injection valves. An additional stored error code P0093 indicates that there is a pressure drop in the fuel system.

An undefinable buzzing noise heard in the vehicles mentioned above when the air conditioning is switched off may be caused by the air conditioning compressor. The buzzing noise occurs when the engine is at idle speed and may be caused by an internal voltage fault in the compressor.