Thermostat Replacement Estimate for Mercedes-Benz S420

Mercedes-Benz S420 Thermostat Replacement costs $138 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$124 to $154
Labor: $77 -$96
Parts: $47 -$58
Average Dealer price
$197 to 228
Average Shop price
$151 to 172
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CarServiceYourMechanic PriceShop/Dealer Price
1998 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$146.63Shop/Dealer Price$192.78 - $262.63
1997 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$145.47Shop/Dealer Price$191.48 - $260.56
1996 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$145.47Shop/Dealer Price$191.39 - $260.40
1999 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$145.47Shop/Dealer Price$191.43 - $260.47
1995 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$135.16Shop/Dealer Price$178.47 - $239.73
1994 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$128.16Shop/Dealer Price$168.90 - $228.23
Show example Mercedes-Benz S420 Thermostat Replacement prices
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Parts required for a Mercedes-Benz S420 Thermostat Replacement

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Stefan
12 years of experience
Stephan provided a professional job both in technical know how but also in customer relations. He is a good representative for the Your Mechanic organization. Would love to have him work with us again.
1996 MERCEDES-BENZ C220 - OTHER INSPECTIONS
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Godwin
19 years of experience
Very professional and knowledgeable. He even showed up ahead of our appointment time and waited for me.
2010 MERCEDES-BENZ E350 - BATTERY REPLACEMENT
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Tom
37 years of experience
Very professional and customer service oriented! Highly recommended!!!
2012 MERCEDES-BENZ CL550 - BATTERY REPLACEMENT
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Augie
26 years of experience
On time and finished before the estimated time and very knowledgeable and honest mechanic , I had no stress and my car works perfectly . Highly recommended.
1993 MERCEDES-BENZ 300E - VALVE COVER GASKET REPLACEMENT
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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