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Mercedes-Benz S400 hybrid vehicles are notorious for having hybrid issues that lead to no start condition.
In this guide, you will find step-by-step instructions on how to replace the air suspension compressor on Mercedes-Benz vehicles equipped with airmatic suspension.
While the design of the air compressor varies between models, the instructions on how to change Mercedes-Benz air suspension compressor are practically the same on all models including E-Class, S-Class, CL-Class, CLK-Class, ML-Class, GL-Class, R-Class, etc.
Example Faults:
Mercedes Air Suspension Compressor
Before you proceed with the air suspension compressor's replacement, inspect the wires that go to the air compressor for damage. Also, check for a bad connector at the air compressor. Check the air compressor relay to ensure it is working properly.
Below you will find instructions on how to replace the Mercedes airmatic compressor.
Raise the vehicle at the front end. Secure the vehicle with jack stands. Place wheel chocks behind the rear wheels.
Spray penetrating oil on the nuts before you remove them. These bolts break very easily, especially if they are rusted.
Remove three 8 mm nuts. Remove three nuts that hold the air compressor in place using an 8 mm deep socket or open-end wrench.
Remove the air compressor unit. Install the new compressor. Assemble in reverse order.
These instructions apply to most Mercedes-Benz models. The air compressor can be found on the right (passenger) front corner of the vehicle behind the bumper. It is in this location on most models, including E, ML, GL, S, CLS class, etc.
Replacing the Mercedes suspension air compressor is an easy procedure that can be performed by the vehicle owner in about one hour.
It is important to test a Mercedes-Benz air suspension compressor before replacing it. In some cases, the air compressor may run and appear to work properly but it does not generate enough pressure to raise the vehicle.
You can use a multi-system diagnostic scanner such as Autel MaxiCOM to activate the air suspension compressor for 40 seconds. The compressor needs to between 16 and 35 bar in that time frame.
If your Mercedes-Benz air suspension compressor does not generate 16 bar in 40 seconds, it is faulty or a major air leak.
If the compressor does not run at all, it is either faulty, or the wire harness to it is damaged. Othe possible problems include a faulty air suspension module.
By YOUCANIC Automotive Experts Published on: Thursday, August 30, 2018. |