Erratic Coolant temp behavior...
Thread Starter
AudiWorld Super User
Joined: Feb 2005
Posts: 3,092
Likes: 0
Erratic Coolant temp behavior...
The temp gauge on my IC seems to sit way lower than it actually should sit at. After a 12 mile ride to work it had hardly moved. There are times when it sits at normal (middle) or just below it (most of the time). So I can't be sure if it's the sensor or a stuck termostat. (This started happening right after I had the waterpump changed at the dealership.) Any ideas?
Club AutoUnion
Joined: Mar 2000
Posts: 31,629
Likes: 49
From: Fort Collins Colorado
my 95 Audi 90 - I had similar symptoms - this is what I found
<center><img src="http://pictureposter.audiworld.com/102/dsc01333.jpg"></center><p>my sensor went bad on the A4 with similar symptoms too - at US$25 it was worth trying first
Trending Topics
Thread Starter
AudiWorld Super User
Joined: Feb 2005
Posts: 3,092
Likes: 0
I have CPO and also have other stuff that needs to be fixed under the CPO.
This makes me think about making the appointment and the trip to the dealership. They might have screwed the thermostat, when they did the water pump.
How hard is it to change the thermostat?
How hard is it to change the thermostat?
AudiWorld Stories
Bringing Audi to Life for Audi Fans
The Highs & Lows of Every Audi C-Class Generation
Joe Kucinski
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer
Brett Foote
10 Audi Features & Options We Miss the Most!
Joe Kucinski
Audi Recreates Crazy-Looking Speed Record Breaker From 1935
Verdad Gallardo
Coachbuilder Recreates the 1995 Audi TTS Concept
Verdad Gallardo
Every Audi V10 Car Ranked!
Joe Kucinski
9 Audi Designs That Aged Like Fine Wine
Verdad Gallardo
2026 Audi Q5 Buyer's Guide (Every Model Explained)
Brett Foote
Ranking Every Current Audi 'S' Model From Worst to First!
Joe Kucinski
AudiWorld Super User
Joined: May 2002
Posts: 5,138
Likes: 4
From: Redmond WA
On my V6 the thermostat failed 4 weeks after doing the water pump and timing belt.
Started to stick open.OEM Tsats do that, aftermarket ones stick shut,(definitely not so good).
After two experiences with this I would replace a Tstat any time the timing belt or water pump is worked on.Maybe the higher pump pressure from a new impeller causes them to fail.
Its a real PITA on the V6 but someone else will chime in about the 1.8T.
After two experiences with this I would replace a Tstat any time the timing belt or water pump is worked on.Maybe the higher pump pressure from a new impeller causes them to fail.
Its a real PITA on the V6 but someone else will chime in about the 1.8T.