EM TuningChris Nott
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  1. #1
    AlexGSi2000's Avatar
    5th Gear

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    Vibration / Knocking Under Load from centre/rear of car - Quattro

    Hi,

    I was wondering if anyone could shed some light on an issue iv had for a while.
    Iv asked on the B6 forum but nobody could put their finger on it, just wondering if anyone with a B5 has had the same issue.

    Basically its a constant knocking/vibration coming from the centre/rear of the car when under full load usually in the lower gears.
    The car is a 2.5TDi Quattro - I have suspicions that it may be propshaft related?

    I have taken an MP3 of the sound its making (the link shows its a video but its just the name)
    The recording was taken in 3rd under full load.

    http://www.freefilehosting.net/video0026

    Many thanks!

    2002 A4 Avant Quattro Sport 2.5 V6 TDi - 219Bhp - Votex
    BCS Automotive Turbo-Back - Remap -
    19" RS6 Reps - B6 S4 Brakes - Symphony II+
    - Weitec GT
    - 2001 Honda CBR600-FS1 -

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  3. #2
    Arrkon's Avatar
    Midlands regional Moderator

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    If I remember correctly, the centre support bearing fails. Sounds a lot like that, Possibly worth starting there?

    Middle support in this picture:
    Currently rolling in a SKODA!!!

  4. #3
    Reverse Gear

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    I think I may have this issue too.

    Does it seem worse (this may sound crazy) when you drive in the rain/roads are wet?

  5. #4
    spartacus 68's Avatar
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    Details from another forum here:
    Propshaft Center Mount Bearing - Audifans.net
    2010 Škoda Fabia 1.6 TDI CR (105) Elegance (31k)
    2002 A2 1.4 TDI SE (130k)
    2001 A4 2.5 TDi Avant Quattro Sport, aka Amrak Locomotive (162k)
    1995 80 TDI Avant SE (175k) Sold

 

 

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