Discussion in 'Mk5 VW Jetta, Sportwagen, and Audi A3 TDI forum' started by gtihodi, Jan 7, 2017.
It makes brrrr noise when i turn on switch sometimes it knocks 3 times
Try to identify where the sound is coming from. That will help isolate what is causing the noise. Could be the cabin vent, air intake valve, who knows?
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