Any idea on the wire gauge/awg of a m44 electrical Auxiliary Fan?

[React]

Hey all. My fan plug housing that connects to the plug housing on the fan crumbled.
I think it's the reason my fan wasn't working.
I hook the fan directly to the battery to test it using alligator clips and it started working. So the fan isn't the issue.

The connector has 3 wires for the plug (black w/ blue stripe, brown, and a blue).
They have the full plug & wiring listed here: https://www.ebay.com/itm/144382031840 for $50, but I didn't want to spend $50.

The plug housing is part# "61131378410".
The electrical connectors are "61130007442", but are out of stock at quite a few places (except for the angled ones).
What I wanted to do was make my own connector using something like the below (cutting off the crumbled plug housings and connecting them to a new one):

but wasn't sure what gauge/awg the original wires were.
The connectors "61130007442" list them as "BMW Round Receptacle 2.5 Watertight (1025 mm)".
Would the "2.5" be 2.5mm wiring? I never heard of wiring listed in mm, only awg. So I wasn't sure, but there are 2.5mm electrical wires being sold online.


Thanks for any feedback. Hope you all are doing good during this hot weather.

 

[jonco]

The wire info will be in the 1998 ETM - this link will put you to main page page but you will have to scroll to index page for link to specific. HTH

http://www.hc.lv/inc/Upload/news_290/File/e36z3_98.pdf

 

[Mike Fishwick]

Yes look on the ETM diagram, where the cross section of the wires is shown next to the wires.
I bet the cross-section is 1 mm - BMW tend to use rather small wires, but they also seem to use good quality cables, as voltage drop on the 1 mm headlamp wires are just about nil. for comparison, similar sized wires on VW headlamps generally produce a voltage drop of about 1.25 volts.

 

[React]

The wire info will be in the 1998 ETM - this link will put you to main page page but you will have to scroll to index page for link to specific. HTH

http://www.hc.lv/inc/Upload/news_290/File/e36z3_98.pdf

Thanks for the link.

Yes look on the ETM diagram, where the cross section of the wires is shown next to the wires.
I bet the cross-section is 1 mm - BMW tend to use rather small wires, but they also seem to use good quality cables, as voltage drop on the 1 mm headlamp wires are just about nil. for comparison, similar sized wires on VW headlamps generally produce a voltage drop of about 1.25 volts.

It shows as 2.5 and I found this: http://www.unofficialbmw.com/all/electrical/all_wire_size.html
Lists 2.5 as 12awg, but I see other people post around saying between 13-14.
I found replacement wire on fcpeuro that's listed as 2.5 and think I will just go for that and be done with it.

The gauge at least gives me an idea of what plug connector size I should get.