Audi Q7 Engine Coolant Temperature (ECT) Sensor 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

(232)

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

(232)

Engine Coolant Temperature (ECT) Sensor Replacement Service

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

On average, the cost for a Audi Q7 Engine Coolant Temperature (ECT) Sensor Replacement is $167 with $72 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Audi Q7V6-3.0L TurboService typeEngine Coolant Temperature (ECT) Sensor ReplacementEstimate$258.95Shop/Dealer Price$312.44 - $433.54
2015 Audi Q7V6-3.0L Turbo DieselService typeEngine Coolant Temperature (ECT) Sensor ReplacementEstimate$238.95Shop/Dealer Price$292.47 - $413.59
2008 Audi Q7V6-3.6LService typeEngine Coolant Temperature (ECT) Sensor ReplacementEstimate$238.95Shop/Dealer Price$292.47 - $413.59
2007 Audi Q7V6-3.6LService typeEngine Coolant Temperature (ECT) Sensor ReplacementEstimate$238.95Shop/Dealer Price$292.43 - $413.52
2010 Audi Q7V8-4.2LService typeEngine Coolant Temperature (ECT) Sensor ReplacementEstimate$238.95Shop/Dealer Price$292.50 - $413.64
2018 Audi Q7V6-3.0L TurboService typeEngine Coolant Temperature (ECT) Sensor ReplacementEstimate$238.95Shop/Dealer Price$284.96 - $400.44
2009 Audi Q7V6-3.6LService typeEngine Coolant Temperature (ECT) Sensor ReplacementEstimate$243.95Shop/Dealer Price$297.23 - $418.17
2009 Audi Q7V8-4.2LService typeEngine Coolant Temperature (ECT) Sensor ReplacementEstimate$243.95Shop/Dealer Price$297.89 - $419.31
Show example Audi Q7 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

Excellent Rating

(232)

Rating Summary
217
5
2
1
7
217
5
2
1
7

Chris

22 years of experience
2235 reviews
Chris
22 years of experience
Audi Q7 V6-3.6L - Check Engine Light is on - Trabuco Canyon, California
Chris is always thorough and knowledgeable.

Doug

34 years of experience
139 reviews
Doug
34 years of experience
Audi Q7 V6-3.0L Turbo - Brake Pads Replacement (Front) - Temecula, California
Great person have an knowledge about what he was doing

Arvin

6 years of experience
4 reviews
Arvin
6 years of experience
Audi Q7 V6-3.0L Turbo Diesel - Oil Change - Los Angeles, California
Great experience.

Joel

21 years of experience
987 reviews
Joel
21 years of experience
Audi Q7 V8-4.2L - Car is not starting - Jacksonville, Florida
Professional competent in his mechanic abilities. Can't wait for the repair now. See you soon.

Excellent Rating

(232)

Rating Summary
217
5
2
1
7
217
5
2
1
7
Number of Audi Q7 services completed
2552+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
700+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Injector Control Pressure Sensor
Common signs include starting issues, engine misfires, the Check Engine Light coming on, and a decrease in power, acceleration, and fuel economy.
How Long Does an Oil Temperature Sensor Last?
Oil Oil is vital for engine operation – you can’t drive without it. Trying to run your car’s engine without oil would result in catastrophic damage. However, it’s just as important that the engine oil is monitored at all times....
How Long Does a Speed Sensor Last?
Today’s Today’s cars are equipped with a very wide range of sensors. Yours has a mass airflow sensor, at least one oxygen sensor, and many others. The vehicle speed sensor (VSS) is usually located on the transmission’s output shaft (although...

The car has reduced engine power

Hello there. There are many potential causes for reduced power output. The most likely would be the fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement), low fuel pressure, battery (https://www.yourmechanic.com/services/battery-replacement), alternator (https://www.yourmechanic.com/services/alternator-replacement), or fuel filter (https://www.yourmechanic.com/services/fuel-filter-replacement). A bad throttle sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement) can cause this issue...

How many crankshaft position sensors are on a 2011 GMC Terrain?

Usually there will only be one crankshaft position sensor. However, there is also a camshaft position sensor as well. It is more likely that there is multiple cam sensors than crank sensors. It is possible for engines to have anywhere...

Is it safe to drive around without my MAP sensor plugged in?

Hi there. From the description you have provided, your vehicle's drivability concern should be diagnosed and repaired. It is not advisable to drive your vehicle with the MAP (manifold absolute pressure) sensor disconnected. The MAP sensor's job is to determine...

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