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17/12/2022 12:02 pm
Topic starter
Grandson's 2020 Jetta, 40K, VIN 3VWCB7BUXLM064318. When car has been sitting overnight. start up produces horrendus screeching noise that seems to come from down under at front right corner of vehicle. Nothing untoward visable on inspection. Noise continues for perhaps three minutes and then gradually abates. Car then runs and operates just fine. Took car to VW dealer for servicing, they could find nothing wrong, or so they say. No screeching during daytime driving, only happens (everytime) car is started after sitting over night. What can it be? Thanks!
1 Answer
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17/12/2022 12:09 pm
What can it be?
It can be a worn fan belt, bad belt tensioner, or belt-drive accessory with a bad bearing or putting too much load on the fan belt.
