Hi, I,ve got a problem with the temperture gauge on my 04 2.0l petrol Passat. It started off with the gauge taking a long time to start moving from cold. It would eventualy go to 40 for about 30 seconds then drop back to 0. It would then after about 10 minutes go to 90 for a minute then drop to 0 and eventualy after about 20 minutes start to read normally. This has now progressed to the gauge not working at all.

I got out the trusty Haynes manual and found 2 temperatue sensors on the engine and deduced tha the 4 pin one was the temperature gauge sensor. I removed the multiplug and earthed the wire from the gauge. This did not give a responce on the temperature gauge, remained at 0.

No other symptoms, heater operates OK, runs well, top hose gets warm.


Any suggestions????