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Mercedes-Benz S420 Repair & Maintenance Costs

A guide to repairs, service, and maintenance costs for your Mercedes-Benz S420

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$868
Annual Repair Cost
on average
The annual maintenance cost of a Mercedes-Benz S420 is $868. Repair and maintenance costs vary depending on age, mileage, location and shop.

Most Common Mercedes-Benz S420 Problems

Mercedes-Benz S420 vehicles have 30 reported problems.The most commonly reported Mercedes-Benz S420 problem is: Closing Assist/Door Lock Issues Due to Pneumatic System 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. Since this sens...

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Mercedes-Benz S420 Reviews

Mercedes-Benz S420 vehicles rate highest in Body and needs improvement in Heating
Mercedes-Benz S420 (7 Reviews)
Body
Brakes
Drive Train
Electrical
Engine
Exhaust
Heating
Suspension

Most Common Mercedes-Benz S420 Questions

There are 168 related questions for Mercedes-Benz S420 vehicles. RepairPal's professional community answers hundreds of questions each day. Below are the most commonly asked Mercedes-Benz S420 questions.
oil leak could this be rear main seal,or head gasket oil leak very clear how do i find out what it might be
I can neither lock not unlock the car using the autolock sequence inside the car or using the controller fob.

Mercedes-Benz S420 Recalls

Mercedes-Benz S420 vehicles have 1 known recalls. The most common recall is: Recall 96V058000.