High mileage or older vehicles commonly develop leaks from the differential seals and/or cover. Our technicians recommend a complete reseal of the differential unit whenever these leaks are repaired.
Resources for the Repair and Maintenance of your 2004 Mercedes-Benz S430 4MATIC
2004 Mercedes-Benz S430 4MATIC
2004 Mercedes-Benz S430 4MATIC Problems
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.
The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.
Front thrust arm and control arm bushings can crack and sometimes tear completely. If this is not repaired quickly, damage to the front subframe unit will occur, which is very expensive to repair. Updated control arms (that prevent damage to the subframe when the bushings wear out) are available.
Due to wear of mechanical parts in the control head, the buttons on
temperature control assemblies work erratically or not at all. These
control heads need to be replaced for this concern or when the display
screen starts to fade out.
2004 Mercedes-Benz S430 4MATIC Questions and Answers
I am thinking of buying a used 04 s430 for my wife. I usually perform my own vehicle maintenance. Am I going to be able to do this with a MB. I do not want a vehicle maintenance nightmare here. I w...
have A 2004 S430 4matic It has Noisy Engine Like Knock Sound
Is That Common For This Car?
Hi Need Help Have A 2004 MB S430 4matic
Sounds Like A Diesel Is That Common
Is There Something I can Do To Quieter The Noise
Its Coming From The Bottom Plz Help
Have a S430 engine with only 4,000 on it and want to know if it
will fix my car that has a bad s430 4matic engine.
I know that the bottom or the oil pan and the Harnest will have
to come off th...
2004 Mercedes-Benz S430 4MATIC Reviews
This car looks great yet has been a nightmare from day 1! wish I never bought it air suspension broke, radiator broke, cup holders are broken passenger vanity mirror broke, passenger mirror broke. This is luxury at its worst!
This is the worst car ever I am actually on my way to the shop. Where can i dump it. Since i bought this junk it has been one problem after another. Please do not buy this car