My daughter has a '82 Rabbit Diesel.
The yellow light in the instrument panel (indicating the glow plugs are operating) comes on intermittently after the car is running. Normally the light would not come on again until you have stopped the engine and went to restart it.
I have cleaned the ground wire to the relay box which is located under the dash (left side) but it hasn't made any difference. The glow plugs were replaced about two years ago but this problem only started about 6 months ago. Otherwise, the car starts well even in cold weather.
Can anyone tell me where I could look to solve the problem. I'd really like to fix it before it ruins the glow plugs.
Thanks for any advice you can offer.
Wray