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Ticking + no indicators or wipers

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by IanFM, Jul 28, 2013.

  1. IanFM
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    IanFM Active Member

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    [Jul 28, 2013]
    Hi guys. Bit of a problem. Started the car up this morning and there was quite a loud ticking noise from behind the dash in the area of the fuse box and also the windscreen wipers and indicators don't work. I have had a look behind the fuse box and as expected there are a bunch of relays in there. I suspect one if them is the problem but any hints or pointer would be great.

    Update:

    Cables and relay panel behind fuse box were wet. 2 things is it likely just to be a faulty relay or am I to prepare for the worst..... Secondly any idea where the water would be coming from?
    Last edited: Jul 28, 2013
    #1
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  3. swarcup
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    swarcup Well-Known Member

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    [Jul 28, 2013]
    have a look inside the ecu box, that is a known leak spot at the drivers side, also if there is water in there check that the drain holes 1 under battery and 1 under brake servo are not blocked and everything is swimming in water
    #2
  4. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Jul 28, 2013]
    if its wet your cem will be shot

    open it up try to dry may be lucky

    its the black box to the right of the steering wheel behind the bottom cover with a few big plugs in it

    iv changed a few in the past and as above take ecu cover off make sure its not wet in there the seal may have gone and letting water in.
    #3
  5. IanFM
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    IanFM Active Member

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    [Jul 28, 2013]
    Thanks for the input guys. What is a cem? More importantly how much are they?
    #4
  6. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Jul 28, 2013]
    it runs the wipers lights etc

    they range from 30/120 on ebay no idea how much from audi.

    if it is that make sure yu get the correct part number end letter is important for it to work
    #5
  7. IanFM
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    IanFM Active Member

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    [Jul 28, 2013]
    If it controls the lights then I might be ok as the lights still work?!?
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  8. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Jul 28, 2013]
    it can make diffrent things not work tho

    open it up nad take it from there
    #7
  9. S3 Johnny
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    S3 Johnny The grass isn't always greener

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    [Jul 28, 2013]
    Bet it's your hazard light switch. Did it on my S3 and turned out to be the hazard switch.
    Worth a try :)
    Johnny
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  10. S3 GAZ
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    S3 GAZ Member

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    [Jul 28, 2013]
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  11. IanFM
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    IanFM Active Member

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    [Jul 28, 2013]
    Looks like bez might be right have just pulled the electronics control module and sure enough it is a bit wet. Although it looks like it has been that way for a while. So drying it out just now and will see how that goes.

    If I need to replace it apart from making sure I get the right one with the correct letter is it plug and play other than that?
    #10
  12. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Jul 28, 2013]
    water may have been geting in there for a while

    dont forget to find out where the water is comeing from tho

    and all depends for plug an play if new needs codeing

    second hand may or not need codeing changed all depends on options of the car.
    #11

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