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Buzzing noise coming from engine bay 2.0 TDI

degville Jan 16, 2013

  1. degville

    degville New Member

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    Right first post and not a good one!

    I was changing my headlight bulbs earlier and when I fit them I turned the key in the ignition(not starting engine) to get my lights on and heard a funny buzzing electrical sounding noise coming from the engine? When removing the key from the ignition and turning the lights off the noise carried on for around a minute.

    In a panic I put my old bulbs back in but the noise was still there!

    Anybody able to put my mind at rest here? Or is something wrong?

    My car is a 57 plate 2.0 TDI 170
     
  2. gen.heinz guderian

    gen.heinz guderian Well-Known Member VCDS Map User

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    I have a T5 van that does the same , been doing it for 3 years now. Never have figured it out,scanned it several times and no codes .
     
  3. degville

    degville New Member

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    Glad it's not just me then. The best I can explain the noise is a high pitched electrical sound?

    When I'm booked in for a service at Midland VW ill be asking their opinion.
     
  4. NHN

    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    Yeah they make several noises on ignition turn, dont worry yet lol.
     
  5. chris.vincent3

    chris.vincent3 Own a BMW now, HOWEVER I still own VCDS! VCDS Map User

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    Have you guys fitted aftermarket headlights by any chance? Had this problem on my MG ZR with aftermarket headlights, turned out to be the motor in the passenger side headlight so i just unplugged it and the buzzing stopped.
     
  6. max69vk

    max69vk Active Member

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    Check the headlight leveller hasn't moved out of place (for the buzzing noise), the high pitch noise is probably just the EGR motor on the intake, amazing what's sounds you start to notice when you're looking for them.
     
  7. degville

    degville New Member

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    They aren't aftermarket headlights just brighter bulbs. I thought it may have been the headlight leveller but when using the manual adjuster it still works fine, if the leveller was at fault would I still be able to adjust?
     
  8. Jord

    Jord Member

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    Sounds like the egr intake manifold flap buzzing, I noticed mine before changing my bulbs
     
  9. gen.heinz guderian

    gen.heinz guderian Well-Known Member VCDS Map User

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    Mine generally makes a groaning /buzzing noise after the engine is turned off. It can last for up to 3 minutes gradually getting quieter.
     

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