Thermostat Replacement Estimate for Mercedes-Benz S420

Mercedes-Benz S420 Thermostat Replacement costs $139 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$127 to $155
Labor: $77 -$96
Parts: $50 -$59
Average Dealer price
$203 to 230
Average Shop price
$154 to 174
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CarServiceYourMechanic PriceShop/Dealer Price
1996 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$148.03Shop/Dealer Price$194.53 - $265.42
1997 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$146.84Shop/Dealer Price$193.19 - $263.30
1994 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$130.12Shop/Dealer Price$171.40 - $232.24
1998 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$146.84Shop/Dealer Price$193.14 - $263.21
1995 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$138.13Shop/Dealer Price$182.17 - $245.65
1999 Mercedes-Benz S420V8-4.2LService typeThermostat ReplacementYourMechanic Price$148.03Shop/Dealer Price$194.52 - $265.40
Show example Mercedes-Benz S420 Thermostat Replacement prices

Parts required for a Mercedes-Benz S420 Thermostat Replacement

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246 reviews
Godwin
19 years of experience
Godwin did a great job changing the oil in my car. First, he called me and arrived early for the appointment which I really appreciated. Then he answered my questions about the car that were not even related to the oil change. He has a good attitude and you can tell he know what he is doing. I absolutely liked the way he did the job and will certainly use his services again.
2010 MERCEDES-BENZ E350 - OIL CHANGE
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124 reviews
Jerel
6 years of experience
He was great, very professional
2004 MERCEDES-BENZ ML350 - VALVE COVER GASKET REPLACEMENT
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109 reviews
Augie
26 years of experience
This is the greatest service ever! I love the fact that the mechanics come to you. I did a lot of research and I was skeptical, but everything worked out great. The mechanic was prompt, prepared, knowledgeable and professional. He was able to do the work I requested, answered all questions and concerns I had about his service and my vehicle. Thank you :-)
2004 MERCEDES-BENZ E320 - CHECK ENGINE LIGHT IS ON INSPECTION
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21 reviews
Jason
15 years of experience
Awesome service! Very well done and through.
2008 MERCEDES-BENZ C300 - THERMOSTAT 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