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Thread: Air Conditioning wiring diagram

  1. #1
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    Air Conditioning wiring diagram

    I am specifically interested in how the compressor is triggered.

    The car in question is a 500e swapped wagon. Let me know if additional information would help.

    Thanks
    Kushal

  2. #2
    .036 Hoonigan™
    E500E Boffin
    gsxr's Avatar
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    Re: Air Conditioning wiring diagram

    On the 500E the compressor is controlled by the Basic Module / General Module.

    On the stock wagon it was controlled by the KLIMA relay. I'd assume a converted wagon would use all the 500E modules, CAN box, and wiring?

    Dave M.
    1997 E420 (Bugeyes)
    1994 E420 (Blondie)
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    1992 500E (Mach 5)
    1987 300D (Sportline Stage 2)
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  3. #3
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    Re: Air Conditioning wiring diagram

    Quote Originally Posted by gsxr View Post
    On the 500E the compressor is controlled by the Basic Module / General Module.

    On the stock wagon it was controlled by the KLIMA relay. I'd assume a converted wagon would use all the 500E modules, CAN box, and wiring?

    You are correct, the involved swapping over entire CAN - so the Basic Module / General Module is now in the wagon.

    Do you have a wiring diagram of the Basic module.

    BTW - I am impressed with your knowledge !! Thanks

  4. #4
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    Re: Air Conditioning wiring diagram

    From what i have read the Basic module is common source for AC issues. In my case, no power to the compressor. It is suggested that I swap out with another basic module.

    Thanks
    Kushal

  5. #5
    .036 Hoonigan™
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    Re: Air Conditioning wiring diagram

    I don't have a wiring diagram for the BM, but I think there is more information in the WIS and buried in the factory CD service manual in the "ETM" directory.

    http://www.w124-zone.com/downloads/M...rbleShting.htm

    http://www.w124-zone.com/downloads/M...1/Program/ETM/

    Not sure if this will help or not...
    http://www.w124-zone.com/downloads/M...M/24075002.pdf



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