2006 Mercedes-Benz S430 4MATIC Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2006 Mercedes-Benz S430 4MATIC
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2006 Mercedes-Benz S430 4MATIC ProblemsBrake light switch failure may cause ESP/BAS warning lights
The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.
An engine Oil leak may develop from the PCV vent housing on the valve cover and/or the inspection plate on the front of the engine.
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.