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2003 Mercedes-Benz S430 4MATIC Repair and Maintenance Costs

A guide to repairs, service, and maintenance costs for your 2003 Mercedes-Benz S430 4MATIC

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2003 Mercedes-Benz S430 4MATIC Problems

Airmatic 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.

The Differential May Develop Leaks From the Seals or Cover

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.

Stalling and/or "Crank no Start" Due to Failed Crankshaft Position Sensor

The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.

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2003 Mercedes-Benz S430 4MATIC Questions

If the batteries in my key are dead , will the car start? (1 answer)

My car doesn't start

What causes an engine to seize? (1 answer)

While driving my car the engine stopped; Instrument panel lit up; Headlight shut off. I was able to coast to the shoulder while still in drive. Once in park, I waited 15 minutes before trying to start the car. the starter clicked, that's all. The battery was fine, I used my hazards for abou...

car cranks no spark no power to ignition coils (1 answer)

before car died battery light was on car died then started after 10 min then died again now cranks no spark have fuel and injection pulse

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2003 Mercedes-Benz S430 4MATIC Reviews

Rated
based on 1 customer reviews
I have been driving this 2003 S430 for about two years now, and I am very happy with it so far. my cousin leases a brand new C300 he feels bad because my ride is actually smoother than his. Only issue is, lately, I've been hearing this strange noise in the front Driver side suspension. don't know what it is yet but I'll figure it out and I just replace the crankshaft position senor, easy fix an...

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