COOLANT LIGHT problem only when its HOT OUTSIDE
06-19-2002, 08:48 AM
#1
New Member
Thread Starter
Join Date: Jun 2002
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
COOLANT LIGHT problem only when its HOT OUTSIDE
I drive a 2001 1.8T A4. I love my car but am having a small problem. When my car has been parked in the sun on a warm day (70+) the coolant light warning comes on and beeps. The coolant is full and the car is obviously not overheating (it has been parked.) The light generally remains on and doesn't go off until the engine is cold and the outside temperature cools off.
Last summer the dealership replaced the 'temperature sending unit' but that did not fix the problem. I just had my car in for its 40k service and they replaced the temp. sending unit again. Well, its still not fixed. I have an appt. next week to have it looked at again. It's getting annoying. Any ideas?
Last summer the dealership replaced the 'temperature sending unit' but that did not fix the problem. I just had my car in for its 40k service and they replaced the temp. sending unit again. Well, its still not fixed. I have an appt. next week to have it looked at again. It's getting annoying. Any ideas?
06-19-2002, 09:00 AM
#3
AudiWorld Super User
Join Date: Sep 2001
Location: Central NJ
Posts: 3,019
Likes: 0
Received 0 Likes
on
0 Posts
I think that there are two sensors on the back of the engine
Here is a link to an unrelated post - maybe they need to replace the other sensor? Another AWer had a similar issue - guage problem and the dealer replace the wrong on too. Anyway, just an idea...<ul><li><a href="https://forums.audiworld.com/a4/msgs/229808.phtml">https://forums.audiworld.com/a4/msgs/229808.phtml</a</li></ul>
06-19-2002, 09:11 AM
#4
New Member
Thread Starter
Join Date: Jun 2002
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
yeah...
Yeah, even when the car hasn't been driven. It's been parked for hours and hours. Then, start it up...and there's the annoying "beep..beep...beep" and the coolant light.
06-19-2002, 09:21 AM
#5
AudiWorld Expert
Join Date: Apr 2002
Posts: 25,530
Likes: 0
Received 0 Likes
on
0 Posts
What about the low coolant sensor? I know you said the fluid is full... but
what if you have a faulty sensor there? Can't they check what sensor is tripping it via a VAG tool? Ask the dealer if there are any DTC's on the ECU. If they say huh? or what? they are obviously not doing their job.
Trending Topics
06-19-2002, 11:57 AM
#9
Member
Join Date: May 2001
Posts: 17,322
Likes: 0
Received 0 Likes
on
0 Posts
The reason I asked is that there is more than one coolant sensor and I was wondering if one was
just gunny at ambient above X temperature. If you can call the dealer and see what DTC they show it might help determine what is going on. Perhaps they just swapped the most likely culprit instaed of the one that is really bad?
Thread
Thread Starter
Forum
Replies
Last Post
quattroman
A4 (B5 Platform) Discussion
2
10-14-2000 11:07 AM
