Mercedes-Benz 420SEL Repair & Maintenance Costs

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

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Annual Repair Cost
on average
The annual maintenance cost of a Mercedes-Benz 420SEL is $891. Repair and maintenance costs vary depending on age, mileage, location and shop.

Most Common Mercedes-Benz 420SEL Problems

Mercedes-Benz 420SEL vehicles have 24 reported problems.The most commonly reported Mercedes-Benz 420SEL problem is: Bad Switch/Blower Motor Resistor Assembly May Cause Inoperative Heater Blower Motor
Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower m...
It is not uncommon for the idle air compensator to get stuck in one position, resulting in the engine idle speed (rp...

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Mercedes-Benz 420SEL Reviews

Mercedes-Benz 420SEL vehicles rate highest in Body and needs improvement in Drive Train
Mercedes-Benz 420SEL (3 Reviews)
Drive Train

Most Common Mercedes-Benz 420SEL Questions

There are 118 related questions for Mercedes-Benz 420SEL vehicles. RepairPal's professional community answers hundreds of questions each day. Below are the most commonly asked Mercedes-Benz 420SEL questions.
1990 mercedes 420 sel have power to dist cap to rotor no spark at plugs
How do you open the hood on a 1986 Mercedes 420 sel