Lets play: What plug is this for?

[Eric]

I feel pretty knowledgable around the ol' E30, but I'm a bit stumped here guys. If you know what any of these plugs are for, please let me know! The car is a 1987 M3

Pic 1: Wire harness that goes in front of the radiator, headlight harness, AC harness etc.
Untitled by ericandshovin, on Flickr

close up of the plugs: My guesses from right to left ... headlight, no idea, no idea, front turn indicator. Also there is one in the center/low of the photo with a rubber bulb cover, I'm guessing AC?
Untitled by ericandshovin, on Flickr

Pic 2:
Untitled by ericandshovin, on Flickr

Pic 3: Both the white T plug and the black plug laying on the radiator support
Untitled by ericandshovin, on Flickr


Moving onto the drivers side...

Pic 4: AC fan is the 3 prong? what is the one to the left of it? Sorry the focus is off.
Untitled by ericandshovin, on Flickr

Pic 5. Another heavy duty 3 prong plug that's just chillin
Untitled by ericandshovin, on Flickr

Pic 6: This guy is tucked up behind the cruise control
Untitled by ericandshovin, on Flickr


Pic 7:
Untitled by ericandshovin, on Flickr

Pic 8: fairly certain this is the air temp sensor for the OBC
Untitled by ericandshovin, on Flickr


Your help is massively appreciated!

[reelizmpro]

Well if you had the right engine... j/k. Some aren't used but the connector with the heavy duty 3 female terminals are for the aux fan hi/low temp switch. There's one on the left and one on the right side Pic 4&5. They are on the same circuit. Only one was used. The 3 female spades in the black square connectors are for your lowbeams.

Pic 2 two females in rubber boot probably go to the AC temp switch on the S14 thermostat housing.
Pic 8 is for air temp sensor.
Pic 3 is for receiver drier that was mounted in that hole.

Just examine the E30 AC system, S14 cooling system, etc.