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Help with fuse box wiring layout


Go to solution Solved by visionaut,

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The other day I started swapping in my new Holy Grail fuse box. By the time I had swapped over the first row of wires I realized I had bought the wrong fuse box (for post 1973 cars). 
I went to replace the wiring, one spade at a time, but it looked different installed and I don’t recall a gap, an empty spade being there before. Now I’m freaked out I installed them wrong across the 12 spades somewhere. Afraid to start the car for fear a fire. Electrical work freaks me out. 
I checked wiring diagram and not helping. I didn’t take “before” photos. Lesson learned. 
 

Can anyone look at this and confirm if I’ve got this top row correct? Also photo of the wiring diagram layout. 
The green wire I added to an empty spade to power my driving lights (yes, it has inline fuse too). I don’t recall another empty spade and wiring diagram shows the wires totally different. I’m certain I didn’t get it that wrong! 
 

1972 2002tii

image.thumb.jpeg.0c2f829209e980be47e9eeaff4941de3.jpeg


6 should be on left in photo above. 

image.thumb.jpeg.8e18d7fe5165d4d2f03647e9ef4c0c5f.jpeg

Edited by Pablo M

2003 e39 M5 (daily)

1986 e30 325es (sons car)

1972 2002tii (fun daily alternative)

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Had a look into my fuse box box today:

 

P7230048.JPG.26da30577e434190bf577112aa5435ca.JPG

 

Left: 71-73 roundie.                                                         Right: 73-77 squarie.

 

P7230050.JPG.bad3218182c9cbdf7ef15641f7e8c4c7.JPG

 

Both euro parts. The 71-73 can easily be identified since it's got both crosswise and longwise spades what the 73-77 part does not have. From above you can see how the inputs are grouped:

 

P7230054.JPG.471dbbe0976927657a9d30aa46632138.JPG

 

I added some duck tape to underline. In the right row of the right box inputs #3 and #4 are also paired. So telling from Pablo's pic I'd say it's the correct box for a roundie and since there seem to be plastic intake runners he's got one.

Euro 71-72 roundie diagram:

 

PTDC0006.thumb.JPG.ae22ae649439418abebe399ed4d7424f.JPG

 

Note that this is belongs to cars with the rotating fan/defrost switch. 72-73 roundies already have the slider for the fan above the heater control- at least on this side of the pond.

 

henn

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On 7/22/2024 at 6:42 PM, visionaut said:

Not sure if these might help;

 

71 box:

image.thumb.jpeg.b12515699d27369cdb6b5a209ec4af7b.jpeg

 

73 box:

image.thumb.jpeg.5335a26e98f8555ffd0f290618fde0fd.jpeg

 

Thanks! This is exactly what I needed. Looks like I did install a few wires one or two spades off.  Assuming this 1971 diagram is same for my 1972 tii box I should be good to go. Thank you!

 

  • Like 1

2003 e39 M5 (daily)

1986 e30 325es (sons car)

1972 2002tii (fun daily alternative)

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