1999 E38 728i, URGENT HELP NEEDED!!!!!! Wipers stopped working on Motorway today.

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Thread: 1999 E38 728i, URGENT HELP NEEDED!!!!!! Wipers stopped working on Motorway today.

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  1. 1999 E38 728i, URGENT HELP NEEDED!!!!!! Wipers stopped working on Motorway today. 
    #1
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    e38rulez's Car Details
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    Hi
    I just got in from driving down from Manchester to London in the most appalling conditions I have ever driven in. Twice during the trip, whilst pouring down, my wipers stopped working, completely, on every setting!!!! I had to frantically pull over on the hard shoulder, don't ask me how I did that, turn my car's ignition on and off a couple of times before they started working again.
    N.B.: When they are working they work fine, i.e. full wipes, auto-wipe, fast wipe, etc.
    Is there a control box/module that controls the operation of the wipers?
    Am I right that there is a power cut off somewhere?
     
     

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    #2
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    dailydoggy's Car Details
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    prolly the wiper relay its pretty common on the E46...
    330i sport a big chunk of berlin...

     
     

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    Martyn D. (05-01-2012)

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    Must be something in the air, mine did exactly the same
    Looks like a new relay (cheers DD)
     
     

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    #4
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    Is that what you're looking at first the relay...is there just one relay that controls the wipers on an 1999 e38?
     
     

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    #5
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    755munich's Car Details
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    No there's 2. The pair of black ones here K36 (shown) & K37 next to it :

    K36, X293

    I think the location of the e-box is on the LHS on yours not RHS as stated in the text.
     
     

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    #6
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    Thanks for that, is it a simple matter of taking them out and slotting new ones in?
    Also, I've been advised to change the wiper motor first, that this is probably on its way out...any advice?
     
     

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    #7
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    I'd try new relays first-the wiper motors are usually very reliable.

    Replacing them is as you describe just disconnect the battery negative first to be on the safe side.
     
     

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    e38rulez (06-01-2012)

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    #8
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    Alright thanks for that, I'm going to try and order some online over the weekend, if I can do it myself that would be best!!
     
     

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    #9
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    Okay I need some guidance for this please. I have ordered the relay and have it now, have opened up the relay compartment in the engine bay and this is what it looks like. N.B: The view is from the front of the car looking straight at it, the relay compartment is to the top right:

    Attachment 33814

    Now, I'm not sure how to get to the relay part which is down below all of this stuff (it's a deep compartment). Towards the top, the long metal cartridge with bundles of wiry stuff going into either has to be unscrewed very awkwardly horizontally (you can see the screws at either end) with very little space or if you look at the picture you can see a shiny metal perimeter which is one whole part that could slot out with some metal latches (which you can see at a few places around the perimeter, hopefully!!) being loosened. What's the correct method?

    For the time being I've put the plastic cover back on without screwing the allen screws as it's a b*tch to get this cover on and off!! If it rains it shouldn't seep into the relay compartment at all. I'd like to get this sorted before I screw it back on.
     
     

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    #10
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    The picture isn't working?
     
     

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