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2.0 tdi Boost Problems BKD 140

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Jack_tdi, May 28, 2012.

  1. Jack_tdi
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    Jack_tdi Member

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    [May 28, 2012]
    I had a boost leak on my 2006 A3 and had a read around the web and found that the seals wernt rated very well.

    i bought some new seals and replaced them and the sound i though was a leaky seal was still there......

    i was out in the car yesterday all day in the sunshine :) and the noise got really loud. After inspection found that boost pipe after the intercooler had half come out. i popped it back in and 5 minutes later BANG..... it comes off again........

    i got home and had a better look...........
    [​IMG]
    Normal ^^^^^^^
    [​IMG]
    Worn ^^^^

    the lugs that the clip round the intercooler socket hold on to had worn right down and wouldnt grip the hose.

    im now waiting on a new one from audi £32 get it on thursday :)
    #1
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  3. Ash187
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    Ash187 Audi-Retrofits.co.uk Site Sponsor

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    [May 28, 2012]
    yh i had that happen to mine last week... random pop while driving away from a traffic light. what a poor design! not even a jubilee clip to secure it into place.
    #2
  4. gujar
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    gujar Member

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    [May 28, 2012]
    how do you get to the intercooler? i think mines come off too
    #3
  5. mike foster
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    mike foster Fossie VCDS Map User

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    [May 28, 2012]
    From underneath after removing the cover panel.
    #4
  6. Lewis90
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    Lewis90 Member

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    [May 29, 2012]
    interesting this, what sort of noise were u getting before the pop?
    #5
  7. Jack_tdi
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    Jack_tdi Member

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    [May 29, 2012]
    A compressed air leak would be the only way i could describe it every time the
    Turbo was boosting and then sounded normal on tick over
    #6
  8. Lewis90
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    Lewis90 Member

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    [May 31, 2012]
    Thats exactly what im getting, it ruins the sound of the turbo do you agree? and it makes u embarrassed to put your foot down.

    did replacing the pipe sort this out?
    #7
  9. Johnny Bravo
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    Johnny Bravo 6+1 Gears

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    [May 31, 2012]
    If the pipe isn't broken, you only need to replace the seals.
    #8
  10. Jack_tdi
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    Jack_tdi Member

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    [Jun 1, 2012]
    Iv been driving round cautiously for the past 4 days and didn't blow The pipe off
    got it fitted today I have full power again
    Its still quite noisy turbo wise but all bkd turbos are noisy there renowned for it
    But not the same air leaking noise as the new pipe sorted that
    #9
  11. Lewis90
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    Lewis90 Member

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    [Jun 1, 2012]
    i agree, the turbos sound like ****. My girlfriends dads bmw turbo sounds lush. jealous
    #10
  12. mdre83
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    mdre83 Member

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    [Jun 26, 2013]
    old thread to drag up but, i've lost boost up until around 2500rpm.
    although mine is a 170, I've ran DPF cleaner, blasted the car and ran EGR Valve cleaner... still the same. Feels like the power is urging to release, but nothing... think it could be something similar?
    #11
  13. Jack_tdi
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    Jack_tdi Member

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    [Jun 27, 2013]
    Not sure in how your boost pressure is regulated on the 170s maybe worth looking for a split in vacuum hoses.....

    Might be controlled electronically though but still best having a look first may be something small ....
    #12
  14. mdre83
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    mdre83 Member

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    [Jun 28, 2013]
    Just had the fuel filter out, it's jet black with crud all round the bottom, can't even see to the bottom of the canister it's black!
    Hopefully this is the cause...
    #13
  15. SAiLO
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    SAiLO Enthusiast VCDS Map User

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    [Jun 28, 2013]
    I'd clean the entire fuel filter casing and then fill it with injector cleaner before replacing the filter.
    #14

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