Car Thermostat Replacement Estimate for BMW 645Ci

BMW 645Ci Car Thermostat Replacement costs $173 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$173 to $187
Labor: $98 -$112
Parts: $75
Average Dealer price
$280
Average Shop price
$210
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CarServiceYourMechanic PriceShop/Dealer Price
2005 BMW 645CiV8-4.4LService typeCar Thermostat ReplacementYourMechanic Price$178.75Shop/Dealer Price$234.51 - $321.76
2004 BMW 645CiV8-4.4LService typeCar Thermostat ReplacementYourMechanic Price$177.26Shop/Dealer Price$232.81 - $319.06
Show example BMW 645Ci Car Thermostat Replacement prices

Parts required for a BMW 645Ci Car Thermostat Replacement

Thermostat
$59
Thermostat Gasket
$4

Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

286 reviews
Dave
18 years of experience
Dave is the third person who has tried to diagnose the problem with my car and he fixed for about half of the original estimate in about half the time budgeted. I only hope that I'm able to get him again for ongoing service.
2013 BMW X3 - CAR THERMOSTAT REPLACEMENT
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283 reviews
Patrick
27 years of experience
He seems professional. I paid for the lights to be addressed and they are all still on including a low engine oil light. He said he would return to check it out further after his next appointment but I did not hear back from him. I was told by BMW that the power steering fluid needs to be drained, flushed and refilled. He sucked it out with a hose twice and this will not ensure that the oil that was accidentally placed in there would be completely removed. I am no mechanic but I am going off of what BMW told me. I wanted to get a lot more work done. I want all the lights to be addressed and fixed so I started with the check engine lights to be looked at and not just reset. I want everything to be fixed. Thank you
2005 BMW 645CI - OIL CHANGE
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25 reviews
Jose
10 years of experience
My car was running rough and shaking when idle, so I booked an appointment for an inspection. My mechanic was Jose Guzman. He did an inspection, and he found the car has eccentric shaft sensor and camshaft Position Sensor problems in just less than 10 minutes. I was impressed by his knowledge and experience about cars. He did a great job today.
2008 BMW 328I - CHECK ENGINE LIGHT IS ON INSPECTION
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16 reviews
Mike
11 years of experience
Thank you Mike for going Sunday and fixing my car. Great mechanic!
2005 BMW X3 - SERPENTINE/DRIVE BELT REPLACEMENT
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All about Car 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.

Car Thermostat Replacement Estimates for Popular BMW Models