2006 Mercedes-Benz S430 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2006 Mercedes-Benz S430

The relay which turns the airmatic suspension pump on may fail causing the pump to run continuously. This can result in failure of the pump motor or a dead battery as the pump motor will continue to run after the car is turned off. Also, Worn airmatic pump mount bushings can causes noises in the front axle while driving on bumpy roads or a buzzing noise while the pump is running.

CD changers, command units, voice control units, PSE units, and Tele Aid units are prone to failure, especially in early models.

The crankshaft position sensor may fail. Symptoms of this are: The engine will crank—but not start—especially when the engine is warm. The car may start again if it is left to cool off, but it may run roughly or have poor performance.

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Under hard acceleration one of my 2006 S-430 sensors shuts off two fuel injectors. Engine runs smoothly until we goose the accelerator; check engine light illuminates.
Thanks,
Larry

when I go to drive the car the warning light is on telling me too low to drive but then the car begins to raise and its ok but when it sits for a while its back down on right side front.

Is the TCU located under the car in transmission area?

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I love my S430. I think the body styling as well as the sleek interior cannot be duplicated. It looks, both inside and out, more elegant than the new, more aggressive S series. It ages well, and with proper service and maintenance, it can be a dream to drive.

Its a great car!

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