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Mercedes-Benz S420 Problems

Find the most common issues based on car owner complaints

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Most Common Mercedes-Benz S420 Problems

Problems with the pneumatic system can cause closing assist and door lock issues.
A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues.
One or more door windows may stop working due to a failed window regulator.
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2 Known Mercedes-Benz S420 Brake Problems

4 Known Mercedes-Benz S420 Drive Train Problems

2 Known Mercedes-Benz S420 Electrical & Lights Problems

5 Known Mercedes-Benz S420 Engine Problems

1 Known Mercedes-Benz S420 Exhaust & Emissions Problem

4 Known Mercedes-Benz S420 Heating & Air Conditioning Problems

7 Known Mercedes-Benz S420 Miscellaneous Problems

5 Known Mercedes-Benz S420 Suspension & Steering Problems

30 Known Mercedes-Benz S420 Problems

Years to Avoid
Based on owner-submitted report and recall notices, Mercedes-Benz S420 years 1999, 1998, and 1997 are the most likely to experience problems.
1999 Mercedes-Benz S420
1998 Mercedes-Benz S420
1997 Mercedes-Benz S420
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