Mercedes-Benz S430 Repair and Maintenance

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

Mercedes-Benz S430 Problems

Airmatic Pump Motors May Fail Due to Sticking Relays

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.

trunk will not open

I have not had this problem fixed. I was wondering if anyone out there had the same problem. I can't get the trunk to open using the key or the remote.

CD Changers and Command/Voice Control/PSE/Tele Aid Units May Fail

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

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Mercedes-Benz S430 Questions

What could it be when ABS , EPS Light coming on...? (1 answer)

Was thinking about replacing the Brake Switch??

How to reset soft door closer . Heard that you can pull the fuse # 19 in the right side of the truck? (1 answer)

What should I do about the fuel gauge? (1 answer)

00' s430 took in water. rear fuse box shorted. Repair was done. Fuel gauge is now not accurate. At full tank the needle is at empty w/o orange light. Drive for 65-70 miles the needle moves to full. What to do?

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Mercedes-Benz S430 Recalls

Incorrect Software Calibration May Cause Fuel Pump to Remain Powered in a Collision

There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.

Mercedes Recalls Multiple 2000-2004 Vehicles Due to Leaking Active Body Control Hose

The hose may corrode due to extensive exposure to humidity. This may cause fluid leakage onto the catalytic converter. This would present a fire hazard. Dealers will a new high pressure distrution hose.

Instrument Cluster Illumination May Fail

The instrument cluster illumination may fail. This may result in difficulty reading the gauges, indicators, and speedometer. Not being able to see the cluster may lead to an accident. Dealers will replace the instrument cluster modules. This recall started on September 29, 2006. 

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Mercedes-Benz S430 Reviews

This 11 year old car is as good as the day I purchased. I have owned about 40 vehicles and this is my number one in all categories.
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.
This model, like all MBs, are pieces of garbage. Also owned a C-Class. Continuous failures which include repeated failures: Airmatic, front end rebuilding issues, numerous electrical failures. These cars are poorly engineered, designed to be cost prohibitive. DO NOT BUY ONE OF THESE OR ANY MB PRODUCT. YOU WILL REGRET IT.

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