1998 Audi A4 Temperature Gauge Stuck Low

Avatar
HOLOPHYTE
  • MEMBER
  • 2 POSTS
Hi can anyone help out here , I have the audi A4 1.9 TDI SE model 1998 and recently the temperature gauge inside the car doesnt go above 70 . When cold it starts at 60 then when warm stays at 90 . The water levels are fine and the heat inside the car is warm or cold depending on what temp you put the climate control to . The air cond works fine also . and the fan behind the radiator is spinning constantly , which is normal I think . I am wondering if it is still ok to use the car as it doesn't seem to over heat when driving . If i stop at lights it does tend to go down slightly from 70 to maybe 65 ish , and then on driving again goes back to 70 . I am just a little concerned about this and would like advice before walking into a garage and they give me the twadde of it needing this and needing that when it doesn't . any advice would be much appriciated . Thank you .

11/10/2006 . Had the Temperature sensor gauge renewed . Cost £70.00 . The old sensor unit had failed which was causing the problem of showing no temperature on the dash board .
Thanks for all the feedback on what you might think it is ( NOT!!!) 99 views and not one person advising anything !!!.
Sep 6, 2006 at 11:18 PM
Advertisement
Avatar
2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
If the temp gauge in the dash has been replaced it could be the temp sending unit.
Nov 30, 2006 at 4:29 AM
Avatar
HOLOPHYTE
  • MEMBER
  • 2 POSTS
Hi ,
thanks for the advice , it was the send unit
Had it fixed , cost £ 70 in total

thanks for the reply
Holo
Dec 1, 2006 at 2:50 AM

Suggested Repair

Replace the failed coolant temperature sending unit that feeds the dashboard gauge.

Conversation Summary

The owner of a 1998 Audi A4 1.9 TDI reported the temperature gauge staying around 60-70 instead of rising normally, while coolant level, cabin heat, air conditioning, and radiator fan operation seemed fine. The gauge also dropped slightly at idle. An expert suggested the temperature sending unit. The owner later confirmed the sending unit had failed and was replaced for about £70, which corrected the gauge reading.

Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle