2003 Mercedes-Benz S430 Repair and Maintenance Costs
A guide to repairs, service, and maintenance costs for your 2003 Mercedes-Benz S430
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2003 Mercedes-Benz S430 ProblemsAirmatic Pump Motor May Fail Due to Sticking Relay
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.
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, command units, voice control units, PSE units, and Tele Aid units are prone to failure, especially in early models.
2003 Mercedes-Benz S430 QuestionsThe car is riding sluggish and bubbling when I press gas. (1 answer)
Feels like little to no power is being released from the engine.
no interior cabin heat
2003 Mercedes-Benz S430 RecallsMercedes 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.
The trunk lid springs could fail in the closed position. If the trunk lid is manually lifted, it may not remain in the open position and could cause injury if it comes down unexpectedly. Dealers will replace both trunk lid springs to correct this concern. The Mercedes-Benz recall number is 2004 050015.