Mercedes-Benz Air Suspension System Problem no.1 – Airmatic Relay Problems:
The relay is a switch that controls electronic circuits by opening and closing circuits within your compressor. Sometimes it fails as a result of over-extended periods of engagement with the compressor.
Your mechanic will help you to identify where the Airmatic relay location is if you want to change it. This is a straightforward fix that your garage can change quite easily.
Mercedes-Benz Air Suspension System Problem no.2 – Mercedes Compressor:
The compressor is responsible for pumping the air suspension bags with air and sometimes get airflow blockages; lose desired pressure required to maintain air suspension, or the compressor may fail altogether.
Sometimes it may appear that the compressor should be replaced, but sometimes it may require a simple fix such as a cable repair or replacement. If the compressor is the issue, it is one of the most expensive repairs in the air suspension system. The main sign that the compressor is at fault is the whole vehicle is lowered and doesn't initiate any raise whatsoever
Mercedes-Benz Air Suspension System Problem no.3 – Airmatic Valve Block:
Air can potentially leak back into the compressor and cause internal damage to compressor itself. This will impede the quality of journey and also the suspension elevation of the vehicle.
W220 Airmatic valve block problems have a tendency to occur, but drivers often misidentify this issue as air suspension damage. One of the side-effects of Airmatic valve block is that the vehicle does not maintain its height.
Mercedes-Benz Air Suspension System Problem no.4 – Mercedes Squeaking Suspension:
Sometimes Airmatic shocks have factory failings or they become damaged due to incorrect handling during any stage of the life-cycle of the shock. Customers report a squeaking noise or a rattling coming from inside the shock itself.
This is usually caused as a result of dislodged internal components of the Air suspension. The part may function fine, but the squeaking noise makes the driving experience unbearable, so the Airmatic parts should be replaced.
Mercedes-Benz Air Suspension System Problem no.5 – Airmatic Malfunction:
Sometimes the culprit is the actual Airmatic air suspension strut itself that is the problem. It may fail as soon as it is installed as a result of incorrect installation or it may be as a result of a faulty factory part.
The air shock may also malfunction during wear-and-tear or an inability to retain the air being pumped from the compressor. One of the main signals that the Airmatic is the problem is that only one side of the car sags, while the other suspensions appear to work fine.
Mercedes-Benz Air Suspension System Problem no.6 – Air Leak:
Another possible failure is at the connection point. You can check to see if the seal is intact or if there is an air leak by spraying some water and soap on sealing/airlines/joints of the shock in order to see if there are air leaks anywhere.
If bubbles appear then there is air leaking from the Airmatic strut. There are also specialised leak detectors in order to allocate potential air leaks, this can be one of the most time consuming common air suspension problem to diagnose.
