Mercedes-Benz 420SEL Repair & Maintenance Costs
A guide to repairs, service, and maintenance costs for your Mercedes-Benz 420SEL
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 26 reported problems.The most commonly reported Mercedes-Benz 420SEL problem is: Stuck Idle Air Compensator May Cause Too High/Too Low RPM
It is not uncommon for the idle air compensator to get stuck in one position, resulting in the engine idle speed...
Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower...
Mercedes-Benz 420SEL Repairs and Prices
Mercedes-Benz 420SEL
Blower Motor Resistor Replacement
$572 - $629
Mercedes-Benz 420SEL
Brake Bleed
$183 - $269
Mercedes-Benz 420SEL
Distributor Assembly Replacement
$953 - $1,039
Mercedes-Benz 420SEL
Power Steering Pump Replacement
$2,714 - $3,163
Mercedes-Benz 420SEL
Powertrain Control Module Replacement
$1,379 - $1,415
Mercedes-Benz 420SEL
Throttle Position Sensor Replacement
$248 - $341
Mercedes-Benz 420SEL
Windshield Wiper Arm Replacement
$238 - $259
Mercedes-Benz 420SEL
Antitheft System Diagnosis & Testing
$76 - $112
Mercedes-Benz 420SEL
Air Injection System Check Valve Replacement
$187 - $244
Mercedes-Benz 420SEL
Alternator Voltage Regulator Replacement
$222 - $286
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Above Average
The Mercedes-Benz Reliability Rating is 3.0 out of 5.0, which ranks it 27th out of 32 for all car brands. This rating is based on an average across 345 unique models. The average annual repair cost for a Mercedes-Benz is $908, which means it has average ownership costs. The other factors that contribute to Mercedes-Benz reliability include an average of 0.7 visits to a repair shop per year and a 13% probability of a repair being severe.
Most Common Mercedes-Benz 420SEL Questions
There are 126 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.
My sunroof wont close i think the motor might of went out i have 1986 420 sel benz and i'm having trouble finding...
Just started after changing fuld,filter,fush trans.
Mercedes-Benz 420SEL Recalls
Mercedes-Benz 420SEL vehicles have 1 known recalls. The most common recall is: Front Brake Strut Support Bolts Fracture Causing Loss Of Handling.
Mercedes-Benz 420SEL by Year
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