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Thread: Heater/Ac controller issues

  1. #1
    Join Date
    Sep 2005
    Location
    Melbourne, Australia
    Posts
    8
    My Cars
    too many to list

    Heater/Ac controller issues

    After 10 years off the road, I'm recommissioning my E32 Alpina B11 3.5.

    on test drive today, heater is blowing out windscreen demister by default whether the control unit is on or off. That being said, turning it on does nothing either, no AC, no fan control on auto or manual modes etc.

    Are there any relay's to start with before we move on to stupidly expensive stuff like control unit & sword etc?

  2. #2
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    44,969
    My Cars
    11/88 E32 750iL+98 E36M3
    If the blower fan speed cannot be controlled, that is usually a sword problem, you can repair it or ask a electric shop to repair it
    http://www.bmwe34.net/E34main/Mainte...ical/Sword.htm
    http://www.bimmerboard.com/forums/posts/355700/
    There may be also some contact problems in the connections to sword, IHKA control unit and control panel. Spray all the contacts with contact enhancer. On the IHKA control unit behind the sword there are on each side 2 connectors.
    Pinout is here http://www.bimmerboard.com/forums/posts/1248867/
    Last edited by shogun; 05-20-2019 at 05:11 AM.
    SHOGUN'S TRICKS AND TIPS FOR THE SEVEN SERIES
    http://twrite.org/shogunnew/topmenu.html

  3. #3
    Join Date
    Sep 2005
    Location
    Melbourne, Australia
    Posts
    8
    My Cars
    too many to list

    Heater/Ac controller issues

    After 10 years off the road, I'm recommissioning my E32 Alpina B11 3.5.

    on test drive today, heater is blowing out windscreen demister by default whether the control unit is on or off. That being said, turning it on does nothing either, no AC, no fan control on auto or manual modes etc.

    Are there any relay's to start with before we move on to stupidly expensive stuff like control unit & sword etc?

  4. #4
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    44,969
    My Cars
    11/88 E32 750iL+98 E36M3
    I merged your 2 threads to one, after you got 10 posts the posts will be shown immy, now is still a delay up to 10 posts, as a mod manually has to approve such posts, that is the socalled forum spam-o-matic, so just be patient
    SHOGUN'S TRICKS AND TIPS FOR THE SEVEN SERIES
    http://twrite.org/shogunnew/topmenu.html

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