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  1. #1
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    Glow plug problem costing me a fortune trying to find cause

    Ok so i have a 2005 2.0 tdi but when i turn the key the glow plug light will not go out.

    I have 2 options , turn the key 15-20 times or sit and wait for 5-10 minutes and the light will go off itself.

    I have so far replaced all 4 glow plugs , put in a brand new battery and had the key re programmed.

    Any Ideas anyone?

    Once the engine is warm, if i turn it off and then turn key then the lights will go straight off. Its usually when engine has been standing for longer then 10 minutes.

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  3. #2
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    Guys i really need advice. Ive had diagnostics ran 3 times from 3 different places and nothing shows

  4. #3
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    Glow plug problem costing me a fortune trying to find cause

    U sure its the glow plugs? As in, isit a solid light or does it flash? If it flashes could be a maf or lambda issue, mine would flash before hittin limp mode when my maf was on its way out. Also one time the turbo was having a once over we ran the car with no intake pipe on the turbo and it flashed continuously too.
    2006 Audi A3 2.0 TDI S-Line 8P2 PD170 - Dolphin Grey Metallic - The problem child
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  5. #4
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    Glow plug problem costing me a fortune trying to find cause

    Also what plugs did u replace it with? Oem?
    2006 Audi A3 2.0 TDI S-Line 8P2 PD170 - Dolphin Grey Metallic - The problem child
    1994 VW Golf VR6 - Mystic Blue - The money thief
    VCDS User

  6. #5
    Lewis583's Avatar
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    I'm guessing you have had the car scanned with a decent diag tool? VCDS would be preferable. Fault codes?
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  7. #6
    Fossie

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    Glow plug wiring harness has been known to cause intermittent problems.

  8. #7
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    Plugs were replaced by bosch ones that were reccomended.

    Scans have been done by audi , the aa and a vw speciliast garage.

    How much is a new glow plugs wiring harness?

    The light stays light, not flashing.

    $once engine is on then there are no issues what so ever. No limp mode or any warning lights

  9. #8
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    Can the glow plug relay cause a problem? I remember something like this on my MK4 golf

  10. #9
    964kevin's Avatar
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    What triggers the Glow Plug to come on? thats where I would be looking.... Temp sensors etc.

    Kevin

  11. #10
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    There are no triggers what so ever. Just sit and wait 5 mins or so and it a click noise happens and then it will go off.

  12. #11
    Fossie

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    Glow plug wiring harness is approx. £100

  13. #12
    NHN
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    Yeap I would test glowplug loom as known to be a problem on some, clicking is probably relay for the glowplug system would need to check schematics to confirm.

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