BMW 750iL Engine Coolant Temperature (ECT) Sensor Replacement Costs

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Engine Coolant Temperature (ECT) Sensor Replacement Service

How much does a Engine Coolant Temperature (ECT) Sensor Replacement cost?

On average, the cost for a BMW 750iL Engine Coolant Temperature (ECT) Sensor Replacement is $167 with $72 for parts and $95 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1996 BMW 750iLV12-5.4L	Service typeEngine Coolant Temperature (ECT) Sensor Replacement	Estimate$258.95	Shop/Dealer Price$312.44 - $433.54
1998 BMW 750iLV12-5.4L	Service typeEngine Coolant Temperature (ECT) Sensor Replacement	Estimate$238.95	Shop/Dealer Price$292.47 - $413.59
1994 BMW 750iLV12-5.0L	Service typeEngine Coolant Temperature (ECT) Sensor Replacement	Estimate$238.95	Shop/Dealer Price$292.47 - $413.59
2001 BMW 750iLV12-5.4L	Service typeEngine Coolant Temperature (ECT) Sensor Replacement	Estimate$238.95	Shop/Dealer Price$292.43 - $413.52
1990 BMW 750iLV12-5.0L	Service typeEngine Coolant Temperature (ECT) Sensor Replacement	Estimate$238.95	Shop/Dealer Price$292.50 - $413.64
1999 BMW 750iLV12-5.4L	Service typeEngine Coolant Temperature (ECT) Sensor Replacement	Estimate$238.95	Shop/Dealer Price$292.47 - $413.59
2000 BMW 750iLV12-5.4L	Service typeEngine Coolant Temperature (ECT) Sensor Replacement	Estimate$243.95	Shop/Dealer Price$297.23 - $418.17
1988 BMW 750iLV12-5.0L	Service typeEngine Coolant Temperature (ECT) Sensor Replacement	Estimate$243.95	Shop/Dealer Price$297.89 - $419.31

Show example BMW 750iL Engine Coolant Temperature (ECT) Sensor Replacement prices

What is the Thermostatic Vacuum Sensor all about?

When the engine is started cold, it takes several minutes to reach operating temperature which is when the engine is running most efficiently. Vacuum is created whenever the engine is running and can be used to control one or more auxiliary vehicle options such as heater controls or cruise control, and is also used to control emissions systems such as exhaust gas recirculation, or EGR. It also controls vacuum for the distributor to advance or retard the spark, ensuring the engine runs as smooth as possible. Vacuum is supplied to these systems through hoses routed in the engine compartment. If engine vacuum was supplied to the EGR system when the engine was still cold, the engine would stumble or stall, and would do so until it reached operating temperature.

The thermostatic vacuum sensor is mounted in the intake manifold and uses coolant temperature to determine when the engine has reached operating temperature. Once it has warmed up, the thermostatic vacuum sensor opens and allows vacuum to flow through it to the vacuum-operated functions it controls. If the thermostatic vacuum sensor fails in the open position, it can be difficult to start the engine when it is cold and will run poorly until it warms up. If the vacuum sensor fails when it is closed, it may start properly but will lose power and run poorly at warm temperatures. It will burn fuel poorly, creating higher exhaust emissions that may fail a smog check. The engine light likely will come on when the vacuum sensor fails.

Keep in mind:

The thermostatic vacuum sensor is part of an emissions control system and is required to operate wherever emissions or smog regulations are enforced.
Any leaks in the vacuum system can mimic the symptoms of a failed thermostatic vacuum sensor. Diagnosis by a professional mechanic is the best way to confirm failure.

How it's done:

The vehicle battery is disconnected and the air cleaner top is removed for access
The defective thermostatic vacuum sensor is removed
The new thermostatic vacuum sensor is installed and the battery is reconnected
The engine is started and the thermostatic vacuum sensor is checked for operation
The air cleaner is reinstalled, repair is verified and the vehicle is road tested for proper operation

What common symptoms indicate you may need to replace the Thermostatic Vacuum Sensor?

The Check Engine light is on
Engine runs poorly on initial startup until the engine warms up
Engine stumbles, stalls, or has a lack of power when hot
Vehicle fails smog check

How important is this service?

The thermostatic vacuum sensor is an important part of the vacuum system that allows the engine to run smoothly and efficiently. If it is not working properly, your engine can stall or not start and you can be stranded in an inconvenient or dangerous situation. Have it checked and replaced by a licensed mechanic as soon as possible.

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Dayan

17 years of experience

23 reviews

Dayan

17 years of experience

by Jeffrey

BMW 750iL V12-5.0L - Battery - Miami, Florida

Daysn is an excellent mechanic. He doesnt give up until the job is done no matter how difficult. I recommend him to anyone.

Adam

16 years of experience

64 reviews

Adam

16 years of experience

by Vince

BMW 750iL V12-5.0L - Serpentine/Drive Belt - Plano, Texas

I highly recommend Adam to anyone needing work to their car or truck. I own 2 old BMW 750iL 12 cylinder sedans. I'm talking 25 and 28 years old. They both have been in storage for about 6 years. One of them had a broken fan belt which I called Mobile Mechanic to send some one to replace it. The person they sent was Adam. Adam was on time for our appointment. He called the day before to introduce himself and disgusted with me the work to be done. Upon his arrival the day of our appointment, he was very polite when he introduced himself to me. He then went to examine my car and what needed to be done in my presents. After his examination he informed me that my water pump may had seized up and it was what was causing the belt to break. He suggested there also may be other things wrong such as the fan clutch that is attached to the water pump may also be froze up. He suggested that I not put the belt on but take it to a garage for further examination. We agree to this and he left without charging me anything. What an honest guy. I did take his advise and the next day had the car at the garage and they found that Adam was right. Both fan clutch and water pump froze up and that is what caused the belt to break. Adam not only saved me the cost of replacing another fan belt which would have broken if he replaced it but also the possibility of getting stuck on the road when the new belt would have broken because of the other 2 problems. Adam was honest enough to inform me of the possible additional problems even at the cost of him not getting the original job he was sent to do. When I get the other car out of storage it is my intent to call Adam to check it out and let me know what needs to be done.

Miguel

35 years of experience

258 reviews

Miguel

35 years of experience

by Jeffrey

BMW 750iL V12-5.0L - Oil Change - Miami, Florida

Third time I use Miguels services. As always he did an excellent job. Would recommend him to anyone.

Agustin

10 years of experience

2 reviews

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Agustin

10 years of experience

Request Agustin

by Jeffrey

BMW 750iL V12-5.0L - Cooling System Flush - Miami, Florida

I was very satisfied by the service provided by Augustin. He was professional and courteous as well. I would recommend him to anyone.

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