2006 Audi A3 Engine temperature gauge

Tiny
FRANKBEL
  • MEMBER
  • 2006 AUDI A3
  • 145,000 MILES
Hello,

The gauge on my car is malfunctioning. It doesn't move up gradually while the engine heats up, instead it shoots up directly to 90 degrees while driving or some times not at all. At times while driving after it goes up to 90 it will fall back down as if the engine is cold.

Your input is greatly appreciated.
Thursday, October 3rd, 2013 AT 4:54 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,114 POSTS
Start by checking the wiring to the temperature sensor. Make sure it has a good clean and tight connection. Also, check the sensor itself. It could be bad.
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Thursday, October 3rd, 2013 AT 5:01 PM
Tiny
FRANKBEL
  • MEMBER
  • 39 POSTS
Thank you so much for your prompt response!

Where is the sensor located? Can I get to it myself?

Thank you.
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Thursday, October 3rd, 2013 AT 5:06 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,114 POSTS
To the best of my knowledge, there are two sensors. One is on the radiator (which is for the fans) the other is on the engine block near the a/c compressor. I believe that is the one you need to focus on. Yes, this is something you can do at home.
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Thursday, October 3rd, 2013 AT 5:19 PM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
Replace the coolant temperature sensor. Common problem.

Thomas
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Saturday, October 5th, 2013 AT 10:58 AM

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