BMW 325Ci Car Thermostat Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(137)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(137)

Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a BMW 325Ci Car Thermostat Replacement is $384 with $160 for parts and $224 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2004 BMW 325CiL6-2.5LService typeCar Thermostat ReplacementEstimate$668.64Shop/Dealer Price$777.39 - $1078.13
2006 BMW 325CiL6-2.5LService typeCar Thermostat ReplacementEstimate$623.22Shop/Dealer Price$725.77 - $1021.85
2005 BMW 325CiL6-2.5LService typeCar Thermostat ReplacementEstimate$623.22Shop/Dealer Price$725.84 - $1021.97
2002 BMW 325CiL6-2.5LService typeCar Thermostat ReplacementEstimate$552.82Shop/Dealer Price$637.84 - $881.17
2001 BMW 325CiL6-2.5LService typeCar Thermostat ReplacementEstimate$552.82Shop/Dealer Price$641.96 - $888.39
2003 BMW 325CiL6-2.5LService typeCar Thermostat ReplacementEstimate$655.02Shop/Dealer Price$742.87 - $988.33
Show example BMW 325Ci Car Thermostat Replacement prices

What is an engine cooling system thermostat and how does it work?

The car's engine cooling system thermostat is a small valve within a cooling system passageway that opens and closes in response to the temperature of the circulating engine coolant. When your car is first started and the coolant is cold, the valve in the thermostat will be in the closed position, circulating the coolant flow only within the engine instead of flowing to the radiator, which allows the engine to warm up fast, promoting fuel efficiency, low emissions, and reduced engine deposits. Once the engine coolant reaches the design temperature, usually around 195 degrees, the valve will open and close as you drive in order to maintain a coolant temperature typically between 195 to 225 degrees Fahrenheit.

Thermostat

When to consider replacing the engine cooling system thermostat:

  • Engine overheats. A thermostat with the valve stuck closed is a common cause of engine overheating. However, since there are other causes of overheating, a mechanic will thoroughly inspect the cooling system prior to condemning the thermostat. Since it is usually not known how badly the engine overheated, the mechanic will also try to determine if there is evidence that the cylinder head gasket was blown. If so, it would be repaired prior to replacing the thermostat.
  • Temperature gauge reads too low or too high. Thermostats can get sticky, causing the engine temperature to stray from the optimal range. Your dash-mounted temperature gauge will notify you of this malfunction.
  • Cooling system repairs. All thermostats eventually fail. Therefore, if the cooling system is already open for major repairs, such as water pump or radiator replacement, it is recommended to install a new thermostat simply as insurance against future breakdown.

How do mechanics replace the engine cooling system thermostat?

  • Once the engine is completely cold, the radiator cap is loosened and enough coolant is drained from the radiator so the coolant level is below the thermostat housing.
  • The thermostat housing is removed and the thermostat and gasket are extracted. Note that some cars have more than one cooling system thermostat and both might need replacement.
  • All mounting surfaces on the thermostat housing are cleaned of old gasket material. A new gasket is applied and the thermostat is re-installed in the correct orientation and with the temperature sensing cylinder facing downward towards the engine.
  • The thermostat housing bolts are tightened to original equipment manufacturer (OEM) specifications using a calibrated inch-pound torque wrench.
  • The cooling system is refilled with the appropriate coolant type and the system is fully bled of all air.
  • The car engine is run until the normal operating temperature is reached, and while taking precautions with the hot coolant, the coolant level is rechecked while confirming there is flow through the radiator — either visually or with an infrared temperature gun. This will confirm the thermostat is open. Finally, the engine is checked for leaks.

Is it safe to drive with an engine cooling system thermostat problem?

No. If it has been determined that there is a thermostat problem, it should be repaired right away. Failure to do so can cause substantial and costly damage to the engine.

When replacing the engine cooling system thermostat keep in mind:

  • Engine overheating due to causes other than a faulty thermostat, will themselves damage a thermostat. Therefore, always replace the thermostat if the engine overheats, even if the thermostat was not the initial cause of the overheating.
  • The thermostat should be replaced anytime you have major work done on the coolant system. It is convenient and costs little during such repairs and insurance against future breakdown.
  • OEM thermostats are the best ones to use and you can request your mechanic to install only the OEM thermostat. Dealer supplied, OEM thermostats are sometimes more costly but are generally higher quality and specifically engineered for your car.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(137)

Rating Summary
128
4
0
2
3
128
4
0
2
3

Jose

14 years of experience
125 reviews
Jose
14 years of experience
BMW 325Ci L6-2.5L - Thermostat - Riverside, California
Always makes sure he has the right parts and coolant before showing up, verifying and confirming with me about everything, never any surprises or fast ones being pulled behind my back, you pay for quality and you most certainly get it!

Jason

33 years of experience
617 reviews
Jason
33 years of experience
BMW 325Ci L6-2.5L - Fuel Filter - Union City, California
Great person.

Shawn

24 years of experience
227 reviews
Shawn
24 years of experience
BMW 325Ci L6-2.5L - Alternator - Hampton, Virginia
I was a little skeptical about using a new service but Shawn was knowledgeable, professional and courteous. He got right to work and was finished in record time. So happy that I got him. I’ll request him specifically the next time. My BMW is running better than ever.

Victor

36 years of experience
230 reviews
Victor
36 years of experience
BMW 325Ci L6-2.5L - Car Battery Replacement - Albuquerque, New Mexico
Very professional and competent!

Excellent Rating

(137)

Rating Summary
128
4
0
2
3
128
4
0
2
3
Number of BMW 325Ci services completed
1507+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform

Recent articles & questions

P0287 OBD-II Trouble Code: Cylinder 9 Contribution/Balance Fault
P0287 P0287 code definition A P0287 Trouble Code indicates cylinder 9 contribution/balance fault. What the P0287 code means In the event of a P0287 code appearing and storing in the vehicle, it means that there is an abnormal reading in...
Child Seat Safety Laws in Washington
Car Car crashes are the main cause of death for children up to the age of 12 all across the country, and many of those deaths can be attributed to improper use (or no use) of restraint systems. Washington State...
P0668 OBD-II Trouble Code: PCM/ECM/TCM Internal Temperature Sensor Circuit Low
P0668 means there is a problematic temperature reading from the engine or transmission. This could be due to a faulty sensor or wire, or overheating.

Car failed emissions test

Hi, to fix this problem you will need to replace the intake manifold gaskets. That will take care of the Barometric Pressure Sensor. I would inspect the exhaust gas recirculation (EGR) valve, since it may have been left open causing...

Shifting problem? 1998 Mercury Villager

Hi There, This may be related to a faulty transmission control solenoid. since automatic transmissions use pressurized hydraulic fluid to change gears, every time a gear change is required, the car's computer activates a transmission solenoid, which directs transmission fluid...

P0341 and p0016

Hi Cristian. P0341 is an OBD-II generic code - click this link to read more about the code and possible repairs (https://www.yourmechanic.com/article/p0341-obd-ii-trouble-code-camshaft-position-sensor-circuit-range-performance-by-jay-safford) - that says the engine control module (ECM) detected the engine camshaft position sensor circuit is not within...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com