Thermostat Replacement Estimate for Mercedes-Benz S400

Mercedes-Benz S400 Thermostat Replacement costs $301 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$300 to $318
Labor: $126 -$144
Parts: $174
Average Dealer price
$516
Average Shop price
$368
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CarServiceYourMechanic PriceShop/Dealer Price
2012 Mercedes-Benz S400V6-3.5L HybridService typeThermostat ReplacementYourMechanic Price$314.15Shop/Dealer Price$406.92 - $582.34
2010 Mercedes-Benz S400V6-3.5L HybridService typeThermostat ReplacementYourMechanic Price$310.67Shop/Dealer Price$402.79 - $575.75
2011 Mercedes-Benz S400V6-3.5L HybridService typeThermostat ReplacementYourMechanic Price$310.67Shop/Dealer Price$402.65 - $575.51
Show example Mercedes-Benz S400 Thermostat Replacement prices
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Parts required for a Mercedes-Benz S400 Thermostat Replacement

Thermostat Gasket
$3
Thermostat
$159

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1995 MERCEDES-BENZ SL600 - LOUD SCREECHING NOISE WHEN I START THE CAR INSPECTION
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2010 MERCEDES-BENZ CLS550 - STARTER REPLACEMENT
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22 years of experience
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2003 MERCEDES-BENZ C240 - SERPENTINE/DRIVE BELT REPLACEMENT
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27 years of experience
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2003 MERCEDES-BENZ CLK320 - DRIVE BELT TENSIONER 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.

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