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7 Series - E38 (1995 - 2001)

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  #1  
Old 12-27-2012, 06:13 PM
Johnny Montana Johnny Montana is offline
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Mein Auto: Lotsa 7 series! E38 Fan!
Searching for 2001 740I Windshield Wiper relay wiring schematic

Hello everyone,

I've got my 740I apart. My wiper relay plug & wires had the typical corrosion problem.

The four large wires are in good shape and still attached to the terminals.......but the two small wires are broken off from their terminals.

Before I can wrap up this project I really need to know which small wire goes where......I don't want to risk any damage by hooking them up the wrong way (guessing)

With the relay removed the plug terminals are boldly numbered. The two terminals in question are terminal #1 and terminal #3

Can anyone tell me where to find the specific wiring diagram/schematic to figure this out?

I've searched all over but haven't found what I need.

Thank you in advance for any help.

Johnny Montana
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  #2  
Old 12-27-2012, 07:24 PM
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joyism5 joyism5 is offline
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Mein Auto: '99 740IL, K75RT
It used to be a nice site bmw spaghetti decoder...but I can't find it anymore. Maybe not available. Try this: http://meeknet.co.uk/E38/Index.htm maybe he has a repair somewhere.
Best wiring diagrams are in Mitchell onDemand (autosoftware). But this is a little bit tricky to install.
Maybe post#7 will help you a bit:http://www.bimmerfest.com/forums/sho...405&highlight=
Good Luck!
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  #3  
Old 12-28-2012, 11:54 AM
Johnny Montana Johnny Montana is offline
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Joyism,

Meeknet didn't have the info I'm looking for.

It's possible the #7 post you sent me to has the info.....but I can't get the first photo (on far left) to open large enough to read the lettering......I tried saving the photo to my computer and opening it in the photo software but it pixelates when I try to zoom.

Do you have a better file of that schematic photo?

JH
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  #4  
Old 12-28-2012, 04:12 PM
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joyism5 joyism5 is offline
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Post 7 has the wiper motor connector relay, post 8 has the complete diagram. I don't have the pictures anymore, I'll try to download them.
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  #5  
Old 12-28-2012, 04:16 PM
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joyism5 joyism5 is offline
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Here there are.
Attached Thumbnails
Click image for larger version

Name:	wiper motor connector view.JPG
Views:	176
Size:	71.4 KB
ID:	355005   Click image for larger version

Name:	Wiper diagram.JPG
Views:	285
Size:	60.6 KB
ID:	355006   Click image for larger version

Name:	Wiper diagram2.JPG
Views:	180
Size:	91.5 KB
ID:	355007   Click image for larger version

Name:	Wiper diagram3.JPG
Views:	142
Size:	62.3 KB
ID:	355008   Click image for larger version

Name:	Wiper diagram4.JPG
Views:	132
Size:	3.8 KB
ID:	355009  

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  #6  
Old 12-28-2012, 06:13 PM
Johnny Montana Johnny Montana is offline
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Location: Blaine, Washington
 
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Joyism5,

I didn't realize before that the 4 photo files are #1 (the original) and #2,#3, and #4 = up close views of the original. Once I figured that out it was pretty easy to read the wire color schematics.

However, I think we are looking at the wrong schematics for my 2001 740I.........my car only has one large wiper relay (the big tan colored one)......the schematics you posted show relay #1 and relay #2......which I think is for mid 1998 production and earlier 740's....

Does anyone have the wiring diagrams for a single relay windshield wiper system on my 2001 740I ?

JH

Last edited by Johnny Montana; 12-28-2012 at 06:16 PM. Reason: more info
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