1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Turbo / Boost Noise FIXED !

Discussion in 'A3/S3 Forum (8L Chassis)' started by darko, Jan 30, 2005.

  1. darko

    darko Member

    Joined:
    Dec 4, 2004
    Messages:
    272
    Likes Received:
    0
    after many, many weeks of trying to solve the strange sound on my car it is fixed ! the noise was like a boost leak when I was accelerating, happened in all gears with the car cold or hot - the garage had the car for a week and couldn't find it however, today i found it !

    turned out to be a hose inside the wing ! where the airbox feeds through into the wing there should be a hose or something that feeds the intake towards the front of the car - mine seems to have gone missing.

    I'll fire up the EPC later and grab a diagram to show people - I know there are quite a few people suffering with this and believe me short of taking the engine out of my car we had looked everywhere...
     
  2. monty77

    monty77 Member

    Joined:
    Nov 29, 2004
    Messages:
    391
    Likes Received:
    0
    [ QUOTE ]
    after many, many weeks of trying to solve the strange sound on my car it is fixed ! the noise was like a boost leak when I was accelerating, happened in all gears with the car cold or hot - the garage had the car for a week and couldn't find it however, today i found it !

    turned out to be a hose inside the wing ! where the airbox feeds through into the wing there should be a hose or something that feeds the intake towards the front of the car - mine seems to have gone missing.

    I'll fire up the EPC later and grab a diagram to show people - I know there are quite a few people suffering with this and believe me short of taking the engine out of my car we had looked everywhere...

    [/ QUOTE ]

    The plastic tube that connects induction box to hole in wing?

    ..sounds like someone had an aftermarket induction kit on at some point and forgot to refit.

    Adam
     
  3. darko

    darko Member

    Joined:
    Dec 4, 2004
    Messages:
    272
    Likes Received:
    0
    yeah maybe, im not sure which part it is as its not there ! I had to remove the plastic wheel arch to get access to see what was going on - basically the airbox was just open into the cavity between the wing and the wheel arch, i put some foam in there and put it all back together and no noise ! will order up the part tomorrow or maybe do the mod that people do to feed a pipe straight from the front bumper to that pipe...
     
  4. Pontio

    Pontio Member

    Joined:
    Dec 14, 2004
    Messages:
    209
    Likes Received:
    0
    what noise where u getting darko?
     
  5. darko

    darko Member

    Joined:
    Dec 4, 2004
    Messages:
    272
    Likes Received:
    0
    the noise sounded like the turbo was in my glovebox, like the sound of air escaping - it made me think i had a split turbo hose or a dv control problem. hard to describe but basically a hissing / wooshing as the turbo was boosting
     
  6. Pontio

    Pontio Member

    Joined:
    Dec 14, 2004
    Messages:
    209
    Likes Received:
    0
    my turbo whistels when im putting my foot down. doesnt sound like its coming from inside the car though..
    Do you think its anything to be worried about or normal? i have never owned a turbo before so its all new to me..
     
  7. monty77

    monty77 Member

    Joined:
    Nov 29, 2004
    Messages:
    391
    Likes Received:
    0
    [ QUOTE ]
    yeah maybe, im not sure which part it is as its not there ! I had to remove the plastic wheel arch to get access to see what was going on - basically the airbox was just open into the cavity between the wing and the wheel arch, i put some foam in there and put it all back together and no noise ! will order up the part tomorrow or maybe do the mod that people do to feed a pipe straight from the front bumper to that pipe...

    [/ QUOTE ]

    Yup, sounds like it. Plastic pipe thingy, can imagine induction noise would be a lot louder without it!

    Def worth having though, engine bays on these cars get hot so a decent cold feed is important.

    Adam
     
  8. darko

    darko Member

    Joined:
    Dec 4, 2004
    Messages:
    272
    Likes Received:
    0
    all turbo cars whistle a bit, mine (S3) was crazy though - you could hear it over the radio ! I can proudly say I have always owned turbo cars so i knew it wasnt right.. i can now hear the turbo but only just, a distant whistle like it should be - you wouldnt notice it unless you were listening out for it
     
  9. nervus

    nervus Well-Known Member

    Joined:
    Apr 6, 2004
    Messages:
    1,280
    Likes Received:
    86
    I have the same noise, changed the hoses, DV etc and there is no boost leak just a wierd noise (not turbo) ill have to check that out. Mine sounds like someone blowing over the top of an empty bottle!
     
  10. benk

    benk Member

    Joined:
    Aug 14, 2003
    Messages:
    469
    Likes Received:
    0
    nervus - I have definitely heard people describe something in exactly the same way "blowing over a bottle" but can't remember what their problem was...
    I think it may have been DV related, but one person mentioned that it was their exhaust and it had a split in it.
    Might be worth a search on "bottle" and "blowing" through forums
     
  11. monty77

    monty77 Member

    Joined:
    Nov 29, 2004
    Messages:
    391
    Likes Received:
    0
    [ QUOTE ]
    I have the same noise, changed the hoses, DV etc and there is no boost leak just a wierd noise (not turbo) ill have to check that out. Mine sounds like someone blowing over the top of an empty bottle!

    [/ QUOTE ]

    Knackered DVs can make 'moo' noises ... anything like that?

    A
     
  12. nervus

    nervus Well-Known Member

    Joined:
    Apr 6, 2004
    Messages:
    1,280
    Likes Received:
    86
    Ill try a search. Its definately not the DV as it still the smae with the forge DV and new bosch one. It only does it in a high gear low revs say 6th at 50mph.

    The noise fades as the car accelarates then dissapears with a hiss around 4.5 - 5K revs!

    It doesnt occur if im in the right gear for maximum accelaration
     

Share This Page