Can anyone show me how to wire up the 15 pin plug on the back of the instrument cluster. I broke the tip of mine off, and went to salvage and got another. I saw that the plug comes apart, and I could replace the portion that plugs into the instrument cluster.

When I plugged it in and started the car, all kinds of things were hooked up wrong. The seatbelt light stays on as well as the buzzer. I must have turned the wires and put them in the wrong holes. Can you show or tell me what color wires go where?

This image is of the broken off one.


[IMG]local://upfiles/8447/A5C3FA6C10314258ABD8E2C06F8FAF6E.jpg[/IMG]

 

after sept 85

[IMG]local://upfiles/1/AAEB15F2F67B452E9424E2420239D401.jpg[/IMG]

 

Sleepwalker,
Mine was built 3/85, has 15 holes but 12 pins. Do you have that? Thanks so much for your quick reply

 

tell me your VIN to avoid confusion.

this is before sept 1985. this is what you need.

 

WDBCA37D6FA153018

 

Sleepwalker,

Please see the post on:

https://mercedesforum.com/m_43896/tm.htm

I never resolved this problem. I need someone's help. Please see my VIN number below. THe air compressor is not working, the blower blows hot air, and the auxiallary fan is not working. The relay on the firewall you showed me does not exist at that location in the above post for my model (3/85).

It is getting very hot in Texas now, and I need the car and the air. I am afraid that if I take it to a mechanic, it will cost a fortune to locate through electrical problems. Your drawing on the instrument cluster was perfect!

Can you please work with me the next few days to try and pin down the air problem? I do have a volt meter, but as you know, some of these plugs have many poles on them.

Funny enough, the moon roof has also quit working. I notice the red coil wire is very hot when the ignition is turned on. I do not have to start it for the red coil wire to warm up.

I have tried used relays from the salvage for the fuse box, and for the following parts under the passenger dash:

Bosch - Temperatureregler - 000 822 0903 1 147 328 023 12V
Bosch - Geblaseregler 12V - 000 822 1103 1147 328 026

 

I have the same problem with my 1983 240d. My vin is WDBAB23A1DB407266
Thanks