Need tips on how to sort air suspension issues? One of the most frequent problems in older Mercedes S-Class cars is failing air suspension, which can cause a bumpy ride, improper ride height, or even suspension failure. Unlike conventional coiled springs, an air suspension system uses air springs and an air compressor to regulate height and enhance the stability of the vehicle.
S-Class Mercedes models have the latest AIRMATIC system that provides the best comfort and control of the car, but after years of service, the air springs, compressor, or height sensor are likely to wear out. If not addressed, these problems can progress to the next level, making your car dangerous to drive. Fortunately there are signs that you can pay attention to so that you can take action before the issues cost your a lot of money. This article will explain what causes air suspension failure and how to resolve it.
What Causes Air Suspension Failure in a Mercedes S-Class?
- Leaking Air Springs: The air springs, also known as air struts, are rubber-like structures that inflate and deflate to control the height of your Mercedes. Once the air begins to leak out, the suspension will no longer stay in position, and your S-Class may lean to one side or sit lower than it used to.
- Faulty Air Compressor: The suspension system is made up of an air compressor that pumps air into the suspension system. If it fails or becomes ineffective, the air springs will not be able to generate the necessary pressure to maintain the car at the right height. An inefficient compressor can result in an unstable posture or total failure of the compressor.
- Failing Ride Height Sensors: Ride height sensors are the devices that inform the AIRMATIC system how high or low the car is. If one of the sensors is damaged, the system will not be able to determine how much air should be supplied to the suspension and this causes improper settings or even a complete failure of the suspension.
Ways of Handling Mercedes S-Class Air Suspension Failure
- Check For Air Leaks: If your Mercedes is low on one particular side, look for cracks or other signs of leakage in the air springs. You can also wet the suspension components with soapy water: if bubbles appear on its surface, then it is a sign of air leakage.
- Listen to the Air Compressor: When you turn on your car, there should be a sound of the air compressor running for several seconds. If it runs for a long time or does not start at all, then it is likely that the compressor is faulty.
- Try a System Reset: In some cases, air suspension problems may be due to a software problem that can be solved by a system reset. Try turning off the car and starting it again to check if the suspension system has returned to its normal state.
- Get a Professional Diagnosis: Mercedes air suspension systems are complicated and it is difficult to diagnose the exact problem without the help of special diagnostic equipment. A good mechanic who deals with Mercedes can easily determine if it is the air spring, the compressor, or even the sensor that has a problem.
- Replacing Air Suspension: If you have encountered a number of problems with your air suspension, you might consider getting a new AIRMATIC system, or just switch to the coil spring suspension. It is always best to consult a professional mechanic who will advise you on the right course of action, depending on the way you use your vehicle.
Professional Mercedes S-Class Suspension Repairs in San Diego
If you are facing air suspension issues with your Mercedes S-Class, it is always best to address them before they worsen. At Dieter’s Porsche & BMW Service, we focus on diagnosing, repairing, and replacing Mercedes air suspension systems. Our highly trained professionals employ factory recommended equipment to work on your S-Class. We have been in business for over 50 years and we have been serving San Diego and its neighboring Coronado, Mission Valley, Chula Vista, and Point Loma communities. Book your appointment online or just stop at our shop to fix air suspension issues in your Mercedes.
