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Thread: Looking for old (1988-1990) E34 Instrument Cluster Pinout

  1. #1
    Join Date
    Jan 2021
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    Capajebo
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    My Cars
    BMW E34 520i

    Question Looking for old (1988-1990) E34 Instrument Cluster Pinout

    Hear hear!

    I'm looking for an old, obscure E34 Instrument Cluster (speedometer) Pinout to create a test bench via power supply.
    This Instrument Cluster is from year 1988-1990 (probably 1990), couldn't identify Manual EURO Model.

    I can't find pinout description for this particular model anywhere. I checked Wiring Diagrams from armchair, but they all show new pinouts that looks totally different. I know there are various pinout for different clusters (low/high), but this exact old model is really hard to identify.

    Images:

    892_6.jpg

    892_5.jpg

    892_7.jpg


    I've tried looking EVERYWHERE, and here on forums:

    http://www.e32-schrauber.de/bmw/s-stecker-kombi.htm
    http://www.pet-racing.de/E34
    http://www.exx.se/maintenance/instru...34/index.shtml
    https://www.armchair.mb.ca/~dave/BMW/e34/

    None of these shows the pinout for the model I have.

    Hopefully someone from bimmerforums can help me

  2. #2
    Join Date
    Aug 2012
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    Simi Valley, CA
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    328, 525, 740, R1200RT
    The pin-outs are available in the Bentley book.

  3. #3
    Join Date
    Jan 2005
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    11/88 E32 750iL+98 E36M3
    Quote Originally Posted by Old525i View Post
    The pin-outs are available in the Bentley book.
    probably not in the Bentley or the US wiring diagrams, this cluster was only used on EURO spec. E34 520 M20B20, and that cluster was only used 1988-1990. That is the low version and still has the plastic gear parts inside. It was also never used on E32. BMW 9220300798E , BMW 8351581 / MotoMeter 7020001003 , BMW 1384287 / MotoMeter 7030001002, : 240KMH, 9 2203 007 98 E, 8351581, 1384287, 7020001003, 7030001002

    check these pinouts from the German E34 forum https://www.e34.de/tips_tricks/bctips/bctips.htm
    part 1 shows the low cluster
    up to 1990 and from 1990
    part 2 shows the high versions
    Last edited by shogun; 09-03-2022 at 04:41 AM.
    Shogun tricks and tips for the E32 series are HERE!

  4. #4
    Join Date
    Jan 2021
    Location
    Capajebo
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    My Cars
    BMW E34 520i
    @shogun is right, Bentley either shows US wiring diagrams or it displays post '90ies schematics. Thanks a lot for the links mate. Spend whole night debugging it on ring0 Ah well, at least I managed to do it

    Here is for a future reference

    low_cluster_88-90-bench.jpg
    49BEC3ED-4FBF-4587-BE3C-AD1B82A4B365.JPG

    Final results are awesome! Will post complete pinout a tad later

    !SOLVED

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