Problem with Golf GTI 16v Mk3 (ABF)

Discussion in 'Electrical' started by dravidham, Jul 21, 2009.

  1. dravidham Forum Member

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    Afternoon all.

    After attempting to fix a mystery oil leak on my car that has been decorating my driveway for weeks, I seem to have caused a further problem and have now succeeded in turning my car in to a non runner.[:x]

    Now the oil leak I have seems to be coming from the back of the actual casting/housing that the oil filter screws on to but in my efforts to establish this I have damaged what I believe to be a sensor wire.

    Can anybody tell me what this wire might be?.....sorry for the poor pics.

    [​IMG]

    [​IMG]

    The wire is so old/brittle that the shielding literally breaks off with the touch of a finger and now the car turns over but will not start.

    Any ideas please people I need to look at a repair/replacement but my Haynes Manual makes no clear reference to this item for an ABF engine.

    CheersThanks and hope to hear from some of you.:)

    David.
     
  2. nickh89GTi Forum Member

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    Looks like the plug/wiring for the crank sensor. If damaged/faulty it will cause the engine to not start. Do you have VAGCOM, will most likely show a fault code if you were to get it plugged in. Think a new sensor is expensive about 100 from VW.
     
  3. Matt82

    Matt82 Forum Addict

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    i cant see the pics, but given the location and the symptoms, my money goes on crank sensor

    you can get these from GSF for 50

    it has to have 2 rubber oil seals and they love to leak

    next stop... the original leak, my money says thats the oil seal between the oil cooler and the oil filter housing. about 60p for a new one and only a bit of hassle to replace it.
     
  4. dravidham Forum Member

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    Thanks nickh89GTi,

    The sensor/car was running fine prior to the 'incident' - Have you any idea if it's possable to just re-shield the cables?

    I'm thinking/hoping that perhaps two of the wires have shorted out a fuse and if this was relaced together with insulating the wires it might solve things?

    Or would that not be a good idea?
     
  5. dravidham Forum Member

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    Thanks Matt.

    That leak I have traced to the top of the casting the oil filter screws on to. There two 'spark plug like' sensors that screw on to the casting (you can see the front one in my pic). Now if you can picture the 'spark plug' like sensor that sits behing that one, there is an allen bolt just behind it......the leak is coming from that very allen bolt.

    Would that be the gasket that you are thinking of?

    It's very strange - this leak has only occured since I changed the oil filter but the leak is not from the actual filter.

    David.
     
    Last edited: Jul 21, 2009
  6. rubjonny

    rubjonny Administrator Staff Member Admin

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  7. Matt82

    Matt82 Forum Addict

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    those allen bolts are where the oil filter housing bolts to the block. i did change that gasket, was one of the first i did. its a thin slither of metal, that could possibly leak

    if you want to tackle that, you have to get the oil cooler off anyway so may as well do the seal thats on that too
     
  8. dravidham Forum Member

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    Cheers Matt.

    Is this going to be a fiddly/difficault job requiring special tools or is it do-able by a first timer?

    I'm undecided as to order parts to tackly DIY or whether to book the thing in to a garage, as I want this on the road by next week.
     
  9. Matt82

    Matt82 Forum Addict

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    no special tools that i can think of. just need a basic socket set and a jack. the front engine mount has to come off to get to that sensor. the engine has to be supported by a jack when the front engine mount comes out
     
  10. rubjonny

    rubjonny Administrator Staff Member Admin

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    take off the front engine mount bracket and you can get to the crank sensor, need to have a jack under the engine though.
     
  11. dravidham Forum Member

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    Thanks guys.

    Last time I took an engine mounting out (replacing starter motor) it took me 2 hours to replace the bolt (the enine moved slightly and the bolt took ages to realign/catch a thread:lol:
     
  12. rubjonny

    rubjonny Administrator Staff Member Admin

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    and now you know why :lol:
     
  13. dravidham Forum Member

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    Hi guys,

    I've identified from the connector of this cable the following part numbers:-

    PA66-GF30
    037 906 433 A

    Do these reference no's match up with a Mk3 Golf GTI16v crank senor by any chance?

    I'd like to order this part pretty soon so clarafication would be greatly appreciated.:)

    Cheers,

    David.
     
  14. rubjonny

    rubjonny Administrator Staff Member Admin

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    yep thats a part number for a crank sensor :)
    when you get the replacement make sure it has an o-ring on the end, most should have one included but if not get a new one from vw.
     
  15. dravidham Forum Member

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    Hi all.

    I ordered a crank sensor cable from this seller and it has since arrived:-
    http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=400059375674

    Is this definitely the sensor that fits in to the crank case just below the oil filter and on the same side as the oil filter? only I am worried that I might perhaps have the wrong sensor. The damaged one currently on my car looks different.

    The replacement sensor has a hole for an allen bolt to secure it and it has one o ring....the one on my car at present doesnt seem to be secured by a bolt, although it is very solidly fixed and it wont budge when prised with a screwdriver.

    Any replies appreciated as I am desperate to get up and running again.

    Thanks.
     
  16. rubjonny

    rubjonny Administrator Staff Member Admin

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    the link doesnt work? but it should definitly be secured with a bolt, do you have a pic [:s]
     
  17. Matt82

    Matt82 Forum Addict

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    and it has to have two oil rings on it
     
  18. dravidham Forum Member

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    Hi,

    Here's another go at the link:

    http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=400059375674

    I've called both the seller (Murray's Direct) half hour ago and also VeeFix in Crawley (local specialist). Both were un-helpful to be honest without seeing the car.

    Just to confirm the sensor I have been sent has just one o-ring.

    This is the 'connector end of the cable' If you guys can picture (sorry for poor pic):-

    [​IMG]


    If you can picture that location, a few inches to the right of the oil switch and a few inches above it, there are three connector plugs stacked vertically. The damaged wire is the third one down (bottom one) and it routes from that location, down to and behind the oil filter and terminates just behind that assembly.

    Does that make any sense?:
     
  19. rubjonny

    rubjonny Administrator Staff Member Admin

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    yeah thats the right sensor and yep you're looking at the right thing. i bet someone has had a go at it and knackerted the allen bolt :(
     
  20. dravidham Forum Member

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    rubjonny,

    Have you any knowledge of a detailled link that I can follow in order to remove the front mounting plate (I take it that this will be required in order to remove and re fit the new sensor?), as it's a not a job that I have carried out that procedure before and I am quite frankly dreading it!

    Thanks for your help.

    David.
     
    Last edited: Aug 5, 2009

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