unknown plugs and wires

[mario23_15]

As I dig deeper into this car, I've found a few plugs and wires that don't connect to anything and wanted to see if you guys could clear up what every one of these is for and where it is supposed to go.

These are in the engine bay behind the driver side headlight. (Pink wire, and two black connections)




This one is next to the front driver side wheel.




This one is behind the gauge cluster.




Under the a/c controls.




This one connects to the cluster, but I was wondering if it is supposed to have only one wire connected to it.




Sorry about the bad pictures, I can go back and circle exactly what I'm talking about if you all can't figure it out. Thanks.

[Swanny]

What year and model do you have?

[mario23_15]

What year and model do you have?

1984 318i

[ELVA164]

Don't know about the first one, the second one is the brake lining sensor wire, not sure about 3 and 4, the last one is the OBC plug for the gauge cluster. Mine has two wires going into it, but maybe that depends on which type of OBC you have. Is yours the 13 button type?

[mario23_15]

Don't know about the first one, the second one is the brake lining sensor wire, not sure about 3 and 4, the last one is the OBC plug for the gauge cluster. Mine has two wires going into it, but maybe that depends on which type of OBC you have. Is yours the 13 button type?

I don't have either the 6 or 13 button OBC, only a digital clock. That's probably why its only one wire.