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knock knock knockin on audi's door

Discussion in 'A4/S4 forum(B5 Chassis)' started by johnyj, Nov 11, 2006.

  1. johnyj

    johnyj Member

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    put my car in for a full service and asked them 2 investigate a knocking.
    passenger side rear.
    every time you turn left there is a knocking noise
    as you straighten up it stops.
    garage said its the rear shocks
    they are monroe shocks about 1 year old
    anyone think it is the shocks?
     
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  3. Broken Byzan

    Broken Byzan Photographic Moderator
    Staff Member Moderator VCDS Map User quattro Audi A4

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    Could be,is it a quattro ? or FWD?

    I blew a set of sensatracs in 14mnths
     
  4. johnyj

    johnyj Member

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    its fwd maybe it is the shocks then thought they lasted abit longer
    there monroe ones i think sporttrack or something
     
  5. Danielson

    Danielson Member

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    i replaced my shocks at 80k ish and they are still fine at 102k, my nearside rear used to knock, it was leaking like a goodun, easy to spot.
     
  6. johnyj

    johnyj Member

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    ill have a look
    i also asked him 2 look at the turbo 2 check condition.
    he says the turbo is not giving alot of output normaly 10psi
    says its weird as theres no noise coming from it 2 suggest any bearings goin.
    any ideas?
     
  7. PhilR

    PhilR One Ate Tea

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    Wastegate acutator ?

    Mine lost its preload and would not keep the wastegate shut so the turbo was not making any boost
     
  8. johnyj

    johnyj Member

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    cheers phil its goin back in on fri so ill tell him 2 have a look
     
  9. PhilR

    PhilR One Ate Tea

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    Yeah...you can just about squeeze your hand in to the actuator rod, mine was slopping back and forth hence not spooling the turbo ( no whistle noise), interestingly the car made 136 brake on jabbas rollers with this problem (was running 0.1 bar of boost ~1.5psi !!), i bet theres loads of a4s running around with the same problem as i had unknowingly, i know of another 2 that have had the same failure, forge sell replacement actuators for 70 quid
     
  10. Beerzo

    Beerzo Masa'warty 3200... Talk To Me!

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    Would this actuator fault show on VAG-COM?
     
  11. PhilR

    PhilR One Ate Tea

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    would only show on VAG COM if you log the requested boost against actual on a live run, not sure which controller number you need to monitor though

    It will not show as a fault, i only found out about mine when jabba did the power run.
     
  12. Sayre

    Sayre Member

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    Im guessing a CV Joint
     
  13. johnyj

    johnyj Member

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    pretty good at 136 bhp with no turbo.
    the more you talk about it it sounds like mine i cant seem to hear any spooling of the turbo either.
    hope it is this so i can unleash the beast when its fixed(rubs hands)
    any difference from standard to forge?
    he also said about oil goin somewhere there was only 1 litre left when he drained it.
     
  14. PhilR

    PhilR One Ate Tea

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    The main difference between forge and standard is that you can buy a forge one, audi and all the other borg warner dealers will only sell a complete turbo unit no seperate actuator,the forge one is slightly uprated and ideally suited to a remap, loss of oil could mean a more serious tubo problem oil seals etc, you should take the inlet hose off and check for a bent (unmovable) shaft
     

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