2003 Mercedes-Benz S430 4MATIC Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Mercedes-Benz S430 4MATIC
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2003 Mercedes-Benz S430 4MATIC ProblemsEvaporator Temperature Sensor Failure
The evaporator temperature sensor can fail, causing the AC compressor not to cycle. If the AC compressor does not turn on, the AC system will not blow cold air. If the compressor is stuck on, the air will be very cold at first, before warming up.
The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.
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.
2003 Mercedes-Benz S430 4MATIC QuestionsIf the batteries in my key are dead , will the car start? (1 answer)
My car doesn't start
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...
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