2003 Mercedes-Benz S500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Mercedes-Benz S500
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2003 Mercedes-Benz S500 ProblemsClosing Assist/Door Lock Issues Due to Pneumatic System Problems
Problems with the pneumatic system can cause closing assist and door lock issues.
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.
2003 Mercedes-Benz S500 QuestionsWhen air is not coming out for a/c-is the blower fan itself that needs replacing (1 answer)
When I turn on A/C it blows cool at my feet-but when I adjust speed-nothing blows out. It comes on-but not blowing-fan is not working-nothing coming out of vents (but it's cool-just no air coming out).
Brought a new key (automatic key/with slade key) from dealer over a year ago-trunk has not open for over a month now. Automatic key still locks and open doors for the rest of the car-the trunk is not operable-any suggestions?
Whenever I unlock car and open door mirror will open out, mirror just stopped opening out.
2003 Mercedes-Benz S500 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.