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Vacuum leak

chipuk Jan 2, 2018

  1. chipuk

    chipuk New Member

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    hi all new to this forum

    i have a 97 A3 8l 20v 1.8 non turbo engine

    car was lumpy so suspected an air leak

    i found this part number
    06A103474

    vent hose
    the hoses were split in a couple of places so need to replace them
    anybody know where i can source one in the uk?

    sadly whilst looking for any more leaks

    the breather line broke
    part number
    06A103213 which looks like it takes gases from the crank case back to an inlet on the air intake from air filter.

    do i need to take the oil filter bracket off to fix this or is there another way of doing it?

    i havent checked for codes but have generic cable on order so i should be able to test it later in the week

    diagram i am using is below

    part 2 and 5

    thanks for your help


    upload_2018-1-2_17-0-31.png


     
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  3. Tj 0785

    Tj 0785 Well-Known Member VCDS Map User Bronze Supporter Audi S3

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    Tps ( trade part specialist) probably best place no you shouldn’t have to remove oil filter it can be tricky pulling the old one out mine come out in pieces just be careful you don’t drop any thing down there
     
    Last edited: Jan 2, 2018
  4. chipuk

    chipuk New Member

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    Thanks TJ ill have a look
     
  5. Stuart B

    Stuart B Well-Known Member

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    the standard connectors appear to be some form of bakerlite compound which crumbles to pieces.
     
  6. tcg

    tcg Well-Known Member

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    Just be careful when fitting the new 'bakerlite' pipe into the oil filter housing...

    http://www.audi-sport.net/xf/thread...ad-my-baby-is-home.261997/page-6#post-2923904

    On my S3,I found it easier to remove the dipstick & holder along with the bracket in front of the inlet manifold(not sure if it's the same for an A3).I just cut the finger off a rubber glove to protect the hole.

    I got the pipes I needed off ebay.
     
  7. Stuart B

    Stuart B Well-Known Member

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    yeah I didn't have as much of the pipe Audi made when I removed mine - lord only knows where that's gone.

    probably why someone found a lucky penny in their sump :)
     
  8. chipuk

    chipuk New Member

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    thanks for the link in the thread makes it much easier when its a bit clean mine is filthy - i did take the front bracket off supporting the dipstick but i moved it a little bit so i could get my sausage fingers in to see and snapped the dipstick pipe with it, it does seem if i move something - something else breaks, still its a good car.
     
    Stuart B likes this.
  9. chipuk

    chipuk New Member

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    is there a good service manual (not the Haynes one i found it rubbish) that anyone has found on fleabay?
     
  10. Stuart B

    Stuart B Well-Known Member

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    I'm not sure the Haynes covers the S3 does it?
     
  11. hydro s3

    hydro s3 S3 amk Team Ming Blue Audi S3

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    No Haynes don't do a manual for the s3. Only do one for the a3 of the same year.
     
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  13. Stuart B

    Stuart B Well-Known Member

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    oh hang on the thread opener only has a 1.8 non turbo - sorry :)

    I have a normal Haynes but to be fair youtube and forums are usually best for details.
     
  14. chipuk

    chipuk New Member

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    i did manage to fit the pipes okay - for anyone else just be very careful if the plastic has started to go off so you dont drop anything down a hole.

    it ran okay for a while but after receiving my vcs lead i got this readout



    Chassis Type: 8L - Audi A3/S3
    Scan: 01,02,03,08,15,16,17,22,35,37,45,55,56,57,75,76
    -------------------------------------------------------------------------------
    Address 01: Engine Labels: Redir Fail!
    Controller: 06A 906 018 AK
    Component: 1,8l R4/5V MOTR AT V02
    Coding: 04030
    Shop #: WSC 06313
    VCID: 6BA944AF0A9D
    2 Faults Found:
    17978 - Engine Start Blocked by Immobilizer
    P1570 - 35-10 - - - Intermittent
    17916 - Shareware Version. To Decode all DTCs
    P1508 - 35-10 - Please Register/Activate - Intermittent
    Readiness: N/A
    -------------------------------------------------------------------------------
    Address 02: Auto Trans Labels: 01M-927-733.LBL
    Controller: 01M 927 733 ER
    Component: AG4 Getriebe 01M 3947
    Coding: 00000
    Shop #: WSC 00000
    VCID: 847B8F138703
    No fault code found.
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes Labels: 1J0-907-37x-ABS.LBL
    Controller: 1J0 907 379 E
    Component: ABS/EDS 20 IE CAN 0001
    Coding: 13504
    Shop #: WSC 06435
    VCID: 33199CCF122D
    No fault code found.



    so looks like 17916 is a problem

    and from ross tech website


    17916/P1508/005384 - Idle Control Sys: Upper Regulation Limit Reached
    Possible Symptoms
    • Power Loss
    Possible Causes
    • Air Intake System blocked (Air Filter OR Air Intake)
    Possible Solutions
    • Check Air Intake System

    anyone else had similar ?
    any tips for me on what to look for?

    i guess air box and filter check
    throttle body clean
    take it for a run

    ill look on here for cleaning throttle body

    thanks again guys
     
  15. Stuart B

    Stuart B Well-Known Member

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    You need to recalibrate the throttle body if you clean it.
     
  16. chipuk

    chipuk New Member

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    so i cleaned the throttle body (still on car) took maf sensor off and air filter box etc
    cleaned everything out
    recalibrated the throttle body
    but it still has a lumpy idle and jumps between 900-1000 rpm

    is it likely to be the throttle body at fault and needs replacing

    or are there any other tests i can do or is it something else ?


    help appreciated
     
  17. Erikn89nl

    Erikn89nl Well-Known Member

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    What state is the coilpack wiring in?
     
  18. hydro s3

    hydro s3 S3 amk Team Ming Blue Audi S3

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    Would a smoke test tell you any thing that would help you?
     
  19. Stuart B

    Stuart B Well-Known Member

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    is there any oil from the engine breather being recirculated through the air intake?

    or as hydro suggested a smoke test might highlight unmetered air being drawn through a leak in the PCV circuit
     
  20. chipuk

    chipuk New Member

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    the pipes i replaced were a bit soaked with oil coming from the crankcase breather and top of the cam cover - but nothing in the airfilter side that was just a bit dusty - all the way up to maf sensor then into the throttle body

    i havent done a smoke test - squirted wd40 on likely looking joints
    can you do a smoke test at home ?
    im looking at replacing the throttle body and have a look at the intake manifold today - ive got a seperate thread for that as i cant find any instructions!
     

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