Injection valves provide each cylinder with the required fuel and simultaneously atomise the fuel so that it can burn most effectively in the combustion chamber. Scroll through this page and find out how injection valves work and potential fault symptoms. You will also find useful tips for performing troubleshooting work on injection valves with the engine running and switched off.
Discharging of 12 V battery for the vehicle electrical system
If the above-mentioned defect is detected, it may be related to a problem with the keyless central locking system. Because of water ingress and corrosion affecting the door handle switches, the receiver detects an opening request and sends this signal to the body control unit.
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.
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.
Engine stops again after having started it at low outside temperatures
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.