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?
Are you talking about the ignition or the engine?
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