Monster MotorsportSky Insurance
Results 1 to 26 of 26
  1. #1
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150

    Engine Management Light and Misfire - 2004 1.8T

    Alright chaps - been away for a while enjoying the Quattro when this morning I hit some niggles.

    Accelerating away from behind a turning car I noticed a light flash on the dash and some judder - at first I thought why the hell is the Traction Control kicking in, but when it did it again I realised it wasn't the TCS light.

    So, I'm getting a flashing CEL and misfire so I'm assuming that this is a Coil Pack on the way out/gone.

    Question is - if I decide to do this myself, can anyone confirm what part I need, and how the hell do you work out which Coil is screwed without VAGcom? Is it a case of swapping/driving/waiting for misfire?

    Cheers lads
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    most likey is a coil pack, the way to check is un plug one at a time and start the car if there is no change plug it back in, and unplug the next one and so on until it makes get wose it will be that one, if you go to gsf and give you reg number they will give you the right pack
    Audi A4 1.8T quattro S Line Avant

  4. #3
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Nice one, thanks mate. It must only just be starting as I'm not getting idling issues at the mo, only under acceleration.

    I expect it'll deteriorate!

    Is it worth getting it VagCom scanned first in case this isn't the issue?
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  5. #4
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    if you get it scaned for beer money then get it sacned, pack 1 is at the front the 23 and 4 is the one closet to the drivers seat,
    it will be you pack as i had 3 go on me and had the same symptoms, get a spare and keep it in the car
    Audi A4 1.8T quattro S Line Avant

  6. #5
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Thanks mate - Looks like the coil is Ł25 sheets from GSF so its probably worth getting a couple then trial end error.


    If it still happens I can get it scanned then and I've still got spares for when the eventuality comes!
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  7. #6
    coyote's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Dec 2007
    Posts
    213
    Quote Originally Posted by AU01 A4 View Post
    most likey is a coil pack, the way to check is un plug one at a time and start the car if there is no change plug it back in, and unplug the next one and so on until it makes get wose it will be that one, if you go to gsf and give you reg number they will give you the right pack
    The above is incorrect: If a coil pack has failed you will be running on 3 cylinders so the car will be missfiring, by unplugging the bad coil pack you will still be running on 3 cylinders so there will be no change in how the car runs, if you unplug a working coil pack the car will be running on only 2 cylinders so will run a lot rougher.

    To test unplug 1 coil pack at a time, if there is no change in how it runs that coilpack is shot. If it runs worse that coil pack is fine.

  8. #7
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Quote Originally Posted by coyote View Post
    To test unplug 1 coil pack at a time, if there is no change in how it runs that coilpack is shot. If it runs worse that coil pack is fine.
    Thats excellent advice - thanks mate.

    Just heard back from the local Audi Independent - they say its a false economy to do one - better doing them all and then its out of the way, then carry the non faulty ones as spares.

    They want Ł200 quid to scan, replace all four of the coil packs then rescan after.

    Is it worth going with the Indy or am I better of doing this myself and replacing them one at a time?
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  9. #8
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    They want Ł200 quid to scan,

    For that much you could buy vagcom and scan it youself, a scan should not be more that Ł20-30,
    no point changing a part that has noting wroing with, i think there are taking you for ride
    Last edited by AU01 A4; 10th June 2010 at 14:18.
    Audi A4 1.8T quattro S Line Avant

  10. #9
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Quote Originally Posted by AU01 A4 View Post
    They want Ł200 quid to scan,

    For that much you could bay vagcom and scan it youself, a scan should not be more that Ł20-30,
    no point changing a part that has noting wroing with, i think there are taking you for ride
    No, they want Ł46 including vat to scan before and after, then Ł154 including vat to replace all four of the coil packs, so around Ł40 per coil including labour. I didn't think that was that bad actually?!

    But I still think its easier to have a go myself for Ł25.
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  11. #10
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    sorry Ł200 for a scan was excessive
    do it youself, i was never hands on until i changed one, now am doing litte jobs and saving ŁŁŁŁŁ
    Audi A4 1.8T quattro S Line Avant

  12. #11
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Quote Originally Posted by Digger1 View Post
    if you unplug one and it gets worse then it's not that one !!!!!!!!!!
    the one you unplug , that leaves the car running the same as it is now, ie. (on three cylinders) that's the one to change !!!
    Cheers Lads.

    Ordered a couple from GSF - Ł56 quid delivered so I'll give it a go when they arrive.

    Should I be lifting these all the way out to test, or unplugging the clip from the side? Also do I do this with engine running constantly or by stopping/starting each time I check one?

    Cheers
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  13. #12
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    just Unclip, i turn off the car when i do it for safty,
    Audi A4 1.8T quattro S Line Avant

  14. #13
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Just driven home very steadily - couple of judders and lights.

    Sat with the engine running a while and no misfires though - also revved and no missfires.

    Out of interest if I'm not running rough at idle, how do I tell if I've got the right coil?
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  15. #14
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    rev the car, and if it dose not miss fire take out for a drive, but dont drive it to much or you will damage your cat with the unburn fule
    Audi A4 1.8T quattro S Line Avant

  16. #15
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    i got a cable of ebay Ł20 and i use the trail vagcom to scan my car, it not the best it dose the job for reading fault codes, saving up for a proper cable and software, ebay cable are hit and miss and there was alot of messing about with drivers and port setting,
    Audi A4 1.8T quattro S Line Avant

  17. #16
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Quote Originally Posted by AU01 A4 View Post
    rev the car, and if it dose not miss fire take out for a drive, but dont drive it to much or you will damage your cat with the unburn fule
    Yeah, thats what worries me really but I can't really see an option without a VAGCOM scan.

    Shame its not idling lumpy. I can provoke it though so shouldn't have to go far before I know if its still doing it.
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  18. #17
    Neutral

    Status
    Offline
    Join Date
    Apr 2010
    Posts
    61

    Engine Management Light and Misfire - 2004 1.8T

    For what it's worth I would change all 4, I had an intermittent miss fire with a coil pack, with 1 changed it ran ok but with 4 changed it picked up power and mpg.

  19. #18
    2nd Gear

    Status
    Offline
    Join Date
    Oct 2009
    Location
    Kent
    Posts
    314
    Quote Originally Posted by AU01 A4 View Post
    They want Ł200 quid to scan,

    For that much you could buy vagcom and scan it youself, a scan should not be more that Ł20-30,
    no point changing a part that has noting wroing with, i think there are taking you for ride
    Ł20-Ł30 HUH try east kent audi those theiving barstewards want Ł57.50 per half hour

  20. #19
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    dales where are you
    check out this

    http://www.audi-sport.net/vb/showthr...VCDS-Users-Map***

    these are guy form the fourm who do it for beer money so be nice to your local friendly sport net man as he/she will come in handy
    Audi A4 1.8T quattro S Line Avant

  21. #20
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Quote Originally Posted by AU01 A4 View Post
    dales where are you
    check out this

    http://www.audi-sport.net/vb/showthr...VCDS-Users-Map***

    these are guy form the fourm who do it for beer money so be nice to your local friendly sport net man as he/she will come in handy
    Live in Penistone mate so not a million miles from you. I used to live in High Burton before that.
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  22. #21
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    do you want me to pop over and give you a hand,
    i could come over late this evening or tomorrow morning
    Audi A4 1.8T quattro S Line Avant

  23. #22
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    That would be really really kind of you mate, like I say just worry about damaging the cat.

    I've got a decent straight run of road about 2 miles from where I live, so I'm going to take my coils down there and try and get it sorted in a bit. I'll let you know how I get on, but if I haven't managed to sort it I'd be grateful for a scan of the fault codes!
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  24. #23
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211
    No Probs
    Audi A4 1.8T quattro S Line Avant

  25. #24
    dalespitfire's Avatar
    Quattrophenia

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    150
    Job done - thanks a lot for everyones advice!
    B6 A4 1.8T Avant Quattro LE 2004 | Silver | 111.5k miles
    Done:
    F/R Ambient Lights|Engine Covers|Replaced Badges|100mm Exhaust Tips|18" RS4 Alloys|Hands Free

  26. #25
    AU01 A4's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Huddersfield
    Posts
    211

    get back to
    lol i love the smilieys on there
    Audi A4 1.8T quattro S Line Avant

  27. #26
    coyote's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Dec 2007
    Posts
    213
    Happy days! Glad you got it sorted mate

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO