Cold air on passenger side

[Kibokojoe]

Got the dash off in about 1 hour. Man what a job, it will probably take me more than a day to get it all back together. Looks like I will be able to repair the flaps without removing the IKHA but I need to know if I can get the parts. I have attached a picture of both flaps.

The metal flap "above" has plastic button which is lying next to the flap, broken in two pieces. The rest of the broken button can be seen through the floor vent, it is an arm. So I will need to get the arm. Wonder if it is available?

The plastic flap "above" can be JB Welded back into place which I will do tonight Any suggestions before I proceed?????

On the E32 I am hundred percent sure, no need to remove the dash, just then glovebox, the center console, the metal arm behind that from chassis to center console, the radio and the OBC, and it helps to remove the front seats and the steering wheel, so you have more space to manouver. But not a absolutel must do.
On E34 I am not sure, but should probably the same.
Stepper motors do not have a separate fuse, all controlled by the IHKA unit.
Make pics, Joe, and a nice short instruction how to do.
And good Luck

[Kibokojoe]

Cleaned the shaft where the plastic flap broke off. Then spread some JB Weld along the broken edge of the flap, tried to make it a thin line just on the edge and the thickness of the plastic flap. Stayed away from the edge about 1/4" (see photo). Then I pushed the other flap closed in the other vent, this makes it easier to position the flap into place and gives it support on three of the four edges with the forth edge being the broken edge. Carefully place the broken flap into place making sure not to get glue anywhere except the break. Once the flap was in place I then smeared JBWeld along the broken seam. with a popsicle stick. Making sure not to get it too thick so it doesn't get on any other parts. That was about 2 hours ago, just went out to test it and it worked. Once it sets up over night I will apply JBWeld to the other side. I also spread JBWeld on the other flap, It has a couple of hair line cracks on it too. This is a tight area and my head was against the windshield and had to fight to get one eye into position to see down the hole Isn't the prettiest job with glue I have seen but if it works who cares

Got the dash off in about 1 hour. Man what a job, it will probably take me more than a day to get it all back together. Looks like I will be able to repair the flaps without removing the IKHA but I need to know if I can get the parts. I have attached a picture of both flaps.

The metal flap "above" has plastic button which is lying next to the flap, broken in two pieces. The rest of the broken button can be seen through the floor vent, it is an arm. So I will need to get the arm. Wonder if it is available?

The plastic flap "above" can be JB Welded back into place which I will do tonight Any suggestions before I proceed?????

[adrian.j]

i have a question.. my heat gets generally warm but for some reason the vents in between the seats blowing towards the rear blow cold air. for now i just close them but im wondering why that might be. its not like warm air either its really cold air like its from outside

[DaveVoorhis]

i have a question.. my heat gets generally warm but for some reason the vents in between the seats blowing towards the rear blow cold air. for now i just close them but im wondering why that might be. its not like warm air either its really cold air like its from outside

They're designed to do that.

[Kibokojoe]

Yeap no hot air comes through that vent, it would be nice if you could control it.

[shogun]

do you mean vents in center console rear end? If that is the same like on the E32, that is only ambient air, hot air comes from under the seat.


http://bmwe32.masscom.net/johan/cent...ts_v1.1-1.html

[Kibokojoe]

Shogun
Finally it is warm enough to work on the 5. Pulled the center console and inspected the stepper motor on the right side of the heater/air box, it works fine so I don't know what is causing only cold air to come out of the vent marked with the yellow arrow. Should I get warm air from any of the other vents on the passenger side? Passenger floor? Right side of console? Knee area on passenger side? It seems to me if it where a broken flap then I should get warm air from all the the other passenger vents except the one marked with the yellow arrow? Is this how it works?

do you mean vents in center console rear end? If that is the same like on the E32, that is only ambient air, hot air comes from under the seat.


http://bmwe32.masscom.net/johan/cent...ts_v1.1-1.html

[shogun]

The system is quite complicated and maybe you try to understand the German here, only about 50 pages ;-)
training material for BMW technicians
called
Klimaautomatik IHKA (German language PDF)
and you find it here, scroll down
http://www.e38.org/e32/
There are also a lot of drawings and data to check, for example each temperature sensor in the system, how to check and which data it should show at which degree Celsius.

the control of each stepper motor is done by the IHKA control unit and it even compares the speed and things like that.

Have you checked the flap you can see from the outside when you remove in engine room the black cover at the firewall to access the blower motor?
As I mentioned some month back, the motor for the 2 outer flaps is on the driver side, and the passenger side flap is regulated from this motor too, bith with a bpowden cable. Maybe that is broken? Or just slipped out of the place where it should be?

More to check here
http://bmwe32.masscom.net/johan/ihka/ihka.html

Edit: you mentioned the stepper motor works, but did you remove the stepper motor and check if the flap is broken?

[Kibokojoe]

I will check this out this weekend

[Kibokojoe]

Found the problem. I pulled the vent cover in the center of the dash and looked down inside. Turning the ignition on and off the vent on the left moved with the step motor the vent marked with the yellow arrow did not. When I turned on the blower the vent on the right popped open, when I held it closed with a screwdriver heat began to blow out of the right vent. So it looks like this vent has no control. Now the question is do I have to pull the IHKA or can I fix it in place? I downloaded the manual and am trying to figure out which stepper motor controls the center vent. Looks like I am in for a evening of Google translation. Man I pray I don't have to pull the IHKA it looks like a real pain.

The system is quite complicated and maybe you try to understand the German here, only about 50 pages ;-)
training material for BMW technicians
called
Klimaautomatik IHKA (German language PDF)
and you find it here, scroll down
http://www.e38.org/e32/
There are also a lot of drawings and data to check, for example each temperature sensor in the system, how to check and which data it should show at which degree Celsius.

the control of each stepper motor is done by the IHKA control unit and it even compares the speed and things like that.

Have you checked the flap you can see from the outside when you remove in engine room the black cover at the firewall to access the blower motor?
As I mentioned some month back, the motor for the 2 outer flaps is on the driver side, and the passenger side flap is regulated from this motor too, bith with a bpowden cable. Maybe that is broken? Or just slipped out of the place where it should be?

More to check here
http://bmwe32.masscom.net/johan/ihka/ihka.html

Edit: you mentioned the stepper motor works, but did you remove the stepper motor and check if the flap is broken?