Thermostat Replacement Estimate for Mercedes-Benz 420SEL

Mercedes-Benz 420SEL Thermostat Replacement costs $149 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$148 to $162
Labor: $98 -$112
Parts: $50
Average Dealer price
$230
Average Shop price
$179
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CarServiceYourMechanic PriceShop/Dealer Price
1989 Mercedes-Benz 420SELV8-4.2LService typeThermostat ReplacementYourMechanic Price$152.13Shop/Dealer Price$201.23 - $268.51
1991 Mercedes-Benz 420SELV8-4.2LService typeThermostat ReplacementYourMechanic Price$151.12Shop/Dealer Price$200.15 - $266.80
1986 Mercedes-Benz 420SELV8-4.2LService typeThermostat ReplacementYourMechanic Price$151.12Shop/Dealer Price$200.04 - $266.61
1987 Mercedes-Benz 420SELV8-4.2LService typeThermostat ReplacementYourMechanic Price$151.12Shop/Dealer Price$200.09 - $266.70
1988 Mercedes-Benz 420SELV8-4.2LService typeThermostat ReplacementYourMechanic Price$152.13Shop/Dealer Price$201.26 - $268.55
1990 Mercedes-Benz 420SELV8-4.2LService typeThermostat ReplacementYourMechanic Price$152.13Shop/Dealer Price$201.22 - $268.49
Show example Mercedes-Benz 420SEL Thermostat Replacement prices

Parts required for a Mercedes-Benz 420SEL Thermostat Replacement

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75 reviews
Brikk
13 years of experience
Very Professional and Detailed ! Awesome Mechanic !
2009 MERCEDES-BENZ SL550 - PRE-PURCHASE CAR INSPECTION
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Andrew
6 years of experience
Great attitude, superb knowledge. I will not have slightest hesitation to book him again if required for my car. Thank you very much for all your work in extreme weather.
2003 MERCEDES-BENZ C240 - ALTERNATOR REPLACEMENT
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30 reviews
Terrell
36 years of experience
Super quick and easy, was in and out. Will def use again.
2011 MERCEDES-BENZ C300 - BRAKE LIGHT BULB REPLACEMENT (DRIVER SIDE)
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26 reviews
James
16 years of experience
James was professional and a very friendly person. He performed a PPI for a used car I was looking to buy and was thorough in his oral and emailed report. Thanks to James I drove it off the lot and I'm fully satisfied!
2006 MERCEDES-BENZ C280 - PRE-PURCHASE CAR INSPECTION
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All about Thermostat Replacement

A thermostat is part of the cooling system that regulates the temperature of the coolant in the engine. The thermostat is a metal valve that has a temperature sensor built in. It can either be open or closed. When the thermostat is closed, it keeps the coolant in the engine. When the engine gets to a predetermined temperature, the thermostat opens allowing coolant to circulate. The circulation of coolant prevents the engine from overheating. If the thermostat fails to open, the car will overheat. If the thermostat fails to close, the engine may never reach the optimal temperature (~220F). The thermostat opens and closes many times when the car engine is running. It is the most common component in the cooling system to fail, causing the car to overheat.

Thermostat Replacement Estimates for Popular Mercedes-Benz Models