What Causes Air Suspension Failure in Audi Vehicles?
1 Answers
Audi vehicle air suspension failure may be caused by air leakage. Troubleshooting method: The air suspension can be manually adjusted. The technician accessed the vehicle's MMI system and found that the lift mode of the air suspension remained in an unselectable gray state. Subsequently, a diagnostic tool was used to enter the adjustment system to perform the inflation function. Initially, the front axle inflation proceeded normally, and the front of the vehicle rose noticeably. However, after completing the inflation operation, the vehicle body began to descend, and a distinct air leakage sound could be heard from the right front shock absorber. Repeating the operation and exiting the vehicle for observation confirmed the presence of an air leak. Repair process: A specialized air suspension leakage detector was connected for testing. First, the detector was used to raise the shock absorber and open the switches on both sides. After the shock absorber pressure gauge reached its maximum value, the valve on the connected side was closed for observation. At this point, the pressure gauge displayed a gradually decreasing value, accompanied by the sound of air leakage. After two minutes, the value stabilized, and the leakage sound disappeared, confirming that the right front shock absorber indeed had an air leakage fault.
