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Mercedes-Benz 420SEL Repair & Maintenance Costs

A guide to repairs, service, and maintenance costs for your Mercedes-Benz 420SEL

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$891 Annual Repair Cost
on average

The annual maintenance cost for a Mercedes-Benz is between $802 and $980.
Maintenance costs vary depending on age, mileage, location and service provider.

The Mercedes-Benz 420SEL has 24 reported problems. Bad Switch/Blower Motor Resistor Assembly May Cause Inoperative Heater Blower Motor is the most commonly reported Mercedes-Benz 420SEL problem.

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The Mercedes-Benz 420SEL is rated highest in Body and needs improvement in Drive Train
Mercedes-Benz 420SEL (3 Reviews)
Body
Brakes
Drive Train
Electrical
Engine
Exhaust
Heating
Suspension
Body
Brakes
Drive Train
Electrical
Engine
Exhaust
Heating
Suspension
The Mercedes-Benz 420SEL has 24 related questions. RepairPal's professional community answers hundreds of questions each day. Below are the most commonly asked Mercedes-Benz 420SEL questions.
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
Start ok but then black smoke, no acceleration stalling
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
My battery keeps running down due to constant static coming from radio car doesn't need to be started nor does key need to be in the ignition and radio is able to be turned on is this normal? ????