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Thread: 1.9 CDTi (150) with spanner light...

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  1. #1
    Regular Member parsco's Avatar
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    rolleyes 1.9 CDTi (150) with spanner light...

    I know there are lots of threads on this and I have read through them.

    The spanner light came up last night when I clicked the ignition over to position 2 and it came on. When I started the car it then went off. However, it's on every time I start the car now, but goes off when I start the car. I've done some reading and it could be water in the fuel filter or a faulty glow plug

    So to find out what it was I tried reading the codes myself using Ste's How2 but this hasn't worked and didn't bring up any code

    Anybody offer any relief from my worry?

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    Does it go off when the other lights TC etc goes prior to starting, or does it stay on after the other lights have gone off? If it's the latter it will most likely be a store code.

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    Ex-Staff Full Member John LE's Avatar
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    Vehicle : Facelift Insignia/Corsa D

    Trim : LE/VXR

    Engine : 2.0 cdti/1.6 Turbo

    Year : 13/07

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    First port of call, try disconnecting the battery to reset the light. If there is a propper fault it will come on again. More than likely a red herring though

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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

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    Mines does this occasionally m8 I personally wouldnt worry. The spanner light will come on on start up as there will be a fault code, but as you say there isnt anything coming up then I wouldnt worry. As for trying the brake/throttle pedal thing for fault code reading I cant get it to work on my CDTI so it may not work on yours.

    If the car isnt going into limp mode and the light is not staying on then it could be a glitch.

    Gazza4

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    Regular Member parsco's Avatar
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    Just an update from today. Took the car out and the light is still there but it's a bit strange.

    It changes it's mind occasionally.

    1) I can turn the ignition to number 2, then all other lights go out (apart from the normal engine light etc...) and the spanner will be there. When I turn the engine on the light goes out.

    2) Same as above however, when I turn the engine on the light stays on and will go off after a few minutes when driving down the road.

    3) Same as number 1 & 2 however, when the engine is on and the spanner light is on I can turn off the car, then start it up again straight away and then there will be no spanner light.



    Is it worth trying to disconnect the battery and reconnect it or could it be water in fuel filter or glow plugs need changing?

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    Regular Member AntSSSS's Avatar
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    Vehicle : Vectra Estate

    Trim : SRI

    Engine : CDTI 150 (Z19 DTH)

    Year : 2008

    Mileage : 100k

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    Have you fitted the EGR blanking mate?

    When it shows a spanner and then goes out once started it means that there is a stored fault - but that fault is not present. When it stays on it means the fault is present

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    mine done same, glow plug fault

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    Regular Member parsco's Avatar
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    Anybody else think this may be the glow plugs? The car is on 95,000 miles and as far as I'm aware has never had the glow plugs changed.

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    Just to update....

    code was read today and it's a faulty glow plug as most have said, thanks very much for the help guys, going to get them replaced along with the service ready for the remap on Friday

    Thanks again

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    Regular Member darko2301's Avatar
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    i'm glad everything is sorted.

    could you just please add a link to the code reading thread as I got the spanner yesterday and I can only find the thread for 3.2v6 engine, I dont know if the procedure is the same? thanks

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