Mercedes-Benz S420 Repair & Maintenance Costs

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

Looking for repair information or to purchase this vehicle?
Choose the information you want to see here, in one click!
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more
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...

Find a Certified Mechanic

Find a high quality auto repair shop or dealer near you

Mercedes-Benz S420 Reviews

Mercedes-Benz S420 vehicles rate highest in Body and needs improvement in Heating
Mercedes-Benz S420 (7 Reviews)
Drive Train

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.