strange noise Audi A6 TDi 5 cylinder AEL

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Uploaded by on Apr 9, 2011

odd tapping sound coming from engine?

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Autos & Vehicles

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Uploader Comments (MGazT)

  • have the same problem and this is vacu

  • @uszaty2222 yea, i've been told its the vacuum/servo pump for the brakes. if i press hard on brake pedal it goes away for a bit.

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  • vacuum pump for the brake system! definitely! dont worry...its no serious damage! replace it or drive with the noise. its not dangerous...

  • Hydraulic tappets What Oil Are u using ?

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