here the stepper motors are marked
http://bmwe32.masscom.net/johan/ihka/ihka.html
Super Moderator
Grand Master
Which motor?
Which motor 2 or 3 controls the left center vent marked with the yellow arrow?
Originally Posted by shogun
Super Moderator
should be 2, see pages 6,7,8,9 (maybe someone can reconfirm before you start)
2.09 MB!
http://www.e38.org/e32/klimaautomatik.pdf
http://bmwe32.masscom.net/johan/cent...ts_v1.1-1.html
http://www.bimmerboard.com/forums/posts/200205/
good pics about a repair on this German site, download them
http://www.e32-schrauber.de/bmw/s-ihka.htm
pic in post 11 with JB weld, and in post 17 a pdf with a nicely made bracket,
in post 19 he made bracket also for the motor to stop them
http://www.7-forum.com/forum/5/ubelt...tml#post919044
Grand Master
I only have motor 1 and 3
I only have motor 1 and 3, then I have a cable controls where motor 2 should be.
Can I pull the dash and open the top of the vent tubing and access the flap from there? Without having to pull the IHKA out?
Super Moderator
I assume it is not possible, but I never tried it.
I so far removed the complete IHKA control unit from my parts car, but that I did when there was almost nothing left inside the car, so that was much easier.
Grand Master
Do you know how the flap is attached to the rod? It seems to me that it has just fallen off. The stepper motor on the passenger side actuates both flaps I am assuming? I pulled the motor on the floor vent passenger side and opened the floor vent by hand. This allowed me access to the actuator for the center flaps. When I moved the arm only the center flap on the drivers side moved up and down. The center flap on the passenger side isn't attached to a motor on the drivers side is it?
Super Moderator
was quite long time ago, no sharp memory.
the drive side flap has a motor, and the passenger side flap is actuated from the drover side motor with a bowden cable. And that is accessible from the engine room.
And that I found on a 10/1988 E32 750iL, maybe it is different on other production years.
http://bmwe32.masscom.net/johan/cent...bulkhead_1.jpg
once more go thru all the pics here
http://bmwe32.masscom.net/johan/cent...ts_v1.1-1.html
Grand Master
These are the exterior air vents
Yes there is a motor on the drivers side (USA) and a cable that actuates the fresh air vent on the passenger side but this is fresh air vents that are on the firewall. The vents that I am talking about are in the interior of the car. Looking at all of the pictures it appears that if the dash is removed you should be able to remove the top of the IHKA without removing it. But then again I may be talking about the duct work on top of the IHKA. I think if the duct work is removed I should be able to get a closer look at the flap and perhaps repair it. What do I have to loose I still have to remove the dash anywayNow its off to find instruction on dash removal.
Super Moderator
dashboard removal
http://bmwe32.masscom.net/johan/dash...al_v1.1-1.html
before you start, read the last info!!!!!
Update - The easy way: I had this idea I did way to much work the last time when I removed the dash cover. As I have no other hobbies I removed the dashboard cover again. This time the upper part was off in some 20 minutes. I removed all the connectors under the driverside glovebox, the steering wheel, the instrument cluster, the IHKA wiring loom, the park ventilation wiring to the IHKA control panel and the speaker wiring to the speakers behind the kick panels. Then I took off the entire center cover (with two people) with the wiringloom, OBC, speakers, air channels, radio and everything still in it. You will have to free the wiring loom to the hazardwarning lights and the auto transmission. http://bmwe32.masscom.net/johan/dash...dash_cover.jpg
Grand Master
How did you ever know which connectors to remove? You must really know your stuff. Is your vehicle a european car? (right side driver)
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