1991 Mercedes-Benz 420SEL Repair & Maintenance Costs

A guide to repairs, service, and maintenance costs for your 1991 Mercedes-Benz 420SEL

1991 Mercedes-Benz 420SEL vehicles have 24 reported problems.The most commonly reported 1991 Mercedes-Benz 420SEL problem is: Bad Switch/Blower Motor Resistor Assembly May Cause Inoperative Heater Blower Motor

Bad Switch/Blower Motor Resistor Assembly May C...

Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower...

Stuck Idle Air Compensator May Cause Too High/T...

It is not uncommon for the idle air compensator to get stuck in one position, resulting in the engine idle speed...

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Mercedes-Benz 420SEL Repairs and Prices

Mercedes-Benz 420SEL

Blower Motor Resistor Replacement

$572 - $629

Mercedes-Benz 420SEL

Brake Light Switch Replacement

Coolant Change

Radiator Replacement

$736 - $1,446

Mercedes-Benz 420SEL

Body Control System Diagnosis & Testing

$61 - $90

Mercedes-Benz 420SEL

Air Injection System Check Valve Replacement

$187 - $244

Mercedes-Benz 420SEL

Alternator Voltage Regulator Replacement

Noise Diagnosis

Wheel Speed Sensor Replacement

$728 - $974

Mercedes-Benz 420SEL

Wheel Bearing Replacement

$411 - $603

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1991 Mercedes-Benz 420SEL Reviews

1991 Mercedes-Benz 420SEL (2 Reviews)

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Most Common 1991 Mercedes-Benz 420SEL Questions

There are 45 related questions for 1991 Mercedes-Benz 420SEL vehicles. RepairPal's professional community answers hundreds of questions each day. Below are the most commonly asked 1991 Mercedes-Benz 420SEL questions.

Car want go in reverse

Just started after changing fuld,filter,fush trans.

Took off from stop sign went a quart of a mile ...

Getting gas and firing turns over but doesn't crankup

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