Problems with the pneumatic system can cause closing assist and door lock issues.
Resources for the Repair and Maintenance of your 1999 Mercedes-Benz S420
1999 Mercedes-Benz S420
1999 Mercedes-Benz S420 Problems
One or more door windows may stop working due to a failed window regulator. Replacement of the failed regulator will be necessary to correct this concern.
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A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.
Glove box hinges, the center console armrest, and the cup holders break.
The engine wiring can degrade because the insulating material falls off leaving the bare wire exposed. This can cause many problems depending on which wires are exposed and what they touch.
1999 Mercedes-Benz S420 Questions and Answers
where is the thermostat located inthis vehicle? near and around what?
on my 1999 s420 a tapping noise comes and goes and I don't know what to do about this.
all lights in dash on wont start there;s spark ran all day
How do I program a new wireless remote