All,
I have a 1.8T GTI and a high pitch noise has started when i turn the engine on cold - it lasts for about 30sec then there is a pshhh noise sometimes.
It is also happening when the fans come on.
I haven't driven much recently mainly 1 mile trips....
The noise only happens if the engine is cold so popping to shops and then back it doesnt happen.
any thought on what it is and how expensive it will be!!!