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Glow Plug Control Unit access?? 2.0 TDI

Discussion in 'A3/S3/Sportback (8P Chassis)' started by deputy74, Jun 6, 2012.

  1. deputy74

    deputy74 New Member

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    Hi all, I've searched the forum for access to the glow plug control unit, apparently its under the engine bay fuse box, has anyone taken this out before? I've loosened all the 'star' headed screws but it doesnt budge.

    Diagnostic states all glowplugs have failed, Auto Sparky stated it has to be this unit, Audi claimed I just needed to replace the relay in the fusebox (£30) and told me there is no such thing as a GP Control Unit, any ideas guys?

    It turns over but doesn't fire and no warning lights on the dash, just the glow plug fault codes? any help would be much appreciated

    cheers
     
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  3. Ste_Nova

    Ste_Nova Active Member

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    does the car run at all, it shouldn't need glow plugs to start if weather is warm
     
  4. deputy74

    deputy74 New Member

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    no it just spins but doesn't fire, initially i thought I'd popped the timing belt thats why I got the engine diagnostic done but it comes up with all 4 plugs on the codes :-/
     
  5. Ste_Nova

    Ste_Nova Active Member

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    i'd be getting the towrope and pull it till it starts or a can of start ya *******/easy start
    [​IMG]


    [​IMG]
     
  6. max69vk

    max69vk Active Member

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    If the glow plugs lights are flashing & it's not starting it's usually a sign that the injectors &/or loom is faulty (bizarrely), is it a PD170? And what is the exact code that's being thrown up?
     
  7. deputy74

    deputy74 New Member

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    Its a 55 plate 140, remapped though which I've been told makes no difference? got the codes at home but not at work with me, the mobile diagnostic mechanic tried easy start quickly but without effect though he didn't try for long
     
  8. deputy74

    deputy74 New Member

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    The print out from the diagnostic included the following info

    17056 cylinder 2 glow plug circuit (Q11) electrical fault P0672
    17058 cylinder 4 glow plug circuit (Q11) electrical fault P0674
    17057 cylinder 3 glow plug circuit (Q11) electrical fault P0673
    17055 cylinder 1 glow plug circuit (Q11) electrical fault P0671


    excuse my ignorance but a timing belt issue would flash up on a diagnostic wouldn't it? Im assuming it would show multiple faults, if I can be sure its not that I'll try towing/jumping in the morning??



    Cheers
     
  9. rob_watti

    rob_watti Member

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    does it sound normal when turning over?

    If it had a timing fault it sound different due to lack of compression. Have you had the glow plugs out and tested?this would be my first port of call and fix the present faults. BUT as said above the vehicle should still start with a glow plug fault at this time of year.

    Where a bouts are you located pal?
     
  10. deputy74

    deputy74 New Member

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    cheers rob, aye it sounds normal, its not fleeing round without resistance but the second belt change is due in about 6K so im paranoid, next job on to do list (when things stop breaking lol)
    It should start I know with easystart etc and its equally bizarre as it has always started literally the first touch of the key hot or cold, never even span to warm up before now
    Audi wont confirm what part the 'glow plug control unit' is they just keep offering to sell me relays that 'might be involved' and have very kindly offered to come and pick the car up, stick in a diagnostic then take my eyes out lol, a tow trip to the nearest auto sparky looms I reckon :-/
    Im up in Sunny Sunderland
     
  11. max69vk

    max69vk Active Member

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  12. deputy74

    deputy74 New Member

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    thats awesome max, much appreciated, great link, can see Im going to be busy tomorrow
     

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