Can you check whether you have a broken plastic ball on one of the colored arms, a ball that rides the spiral grooves in the disks and moves the cables? Here are DIYs on fixing that:
http://www.bimmerfest.com/forums/sho...7&postcount=23
http://www.bimmerfest.com/forums/sho...7&postcount=78
Last edited by Vintage42; 06-26-2018 at 07:03 AM.
BMW MOA 696, BMW CCA 1405
Ok guys, I have removed the HVAC unit (see pics) It appears the Green lever moves freely unlike the other 2 levers ....Red & Clear . They have a little tip that rides inside the 2 gears that are linked to the Dials on the front side (see photo) The red one is connected to the Dial that selects the functions where the air blows (Floor, face, windshield) while the Clear one is connected to the dial that regulates Heat or A/C. They both appear to be working fine with the exception of the missing Detent which allows the dial to click when it reaches a particular function (floor, face, windshield). The green lever moves freely and is NOT riding inside a gear. I don't see what purpose it serves other than to move the lever attached to the black box....(see pic).
I purchased the ballstuds but I don't think I need them. What I need is some information of why the green cable is not properly functioning and how it functions.
Last edited by MORRIE; 06-26-2018 at 11:12 PM.
Here are pics
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following
Does the red lever feel like it snaps in when you push it in? Think it holds all theee of the arms together maybe it’s not snapping all the way in? Other than that I don’t know what the green one shouldn’t be moving
All levers are tight & secured on the backside of the control panel. Look at the photo #29. I don't know what you mean by snapping all the way in and there's nothing to push in???? The green lever moves freely & is NOT attached to anything. I am speaking about NOW when the control panel has been removed from the car. Again....look at the pic on #29. I shows back of control panel removed from car.
Last edited by MORRIE; 06-26-2018 at 11:24 PM.
The green cable runs from the unit to another lever located on a black box (see photo). I looked on realoem.com but didn't find anything. I am guessing this is the heater?? If so does it have a flap inside to open & close the flow of heat? Can I gain access to the inside? I am guessing this cable opens & closes that flap and something inside has come loose or broken. Does anyone know?
Last edited by MORRIE; 06-26-2018 at 11:21 PM.
The white lever, adjusted by the cam of the temperature control which is the middle knob of the controls, works independently of the green and red lever. It is usually the nub on the white lever that breaks. The green and red levers are controlled by the left knob, whose function it is to direct the air to the defrost vents, the dash vents, or the floor vents. The nub on the red lever runs in the cam you can see on the back of the unit. The nub on the green lever runs in the cam on the other side of that same part. I suspect the nub is not in the cam or that the green nub has broken off. It's a little fiddly to get all three nubs into their appropriate tracks. The green goes in first, the white second, and the red last, if I remember correctly.
Wayne
1998 M Roadster
1994 Honda ST1100--sold
2017 Yamaha FJR1300ES
I can hardly see where it has broken off from the edge nearest the large white grooved wheel. Guess I will be using the ballstud to repair the green lever. That means i must separate the back plate from control panel to gain access to that side of the green lever...right? Thanks man. You rock!!
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Yes, you will need to separate the control panel from the back plate. The hardest part for me was removing the knobs. They just pull off but are securely attached. Once the two plates are separated, the lobes at the ends of the cables need to come out--it's easier to remove the clips that secure the cables to allow freedom of movement. The two wheels and the levels are a pinch and push from the front side.
Wayne
1998 M Roadster
1994 Honda ST1100--sold
2017 Yamaha FJR1300ES
Having extreme difficulty separating the white plate from black plate. Knobs are removed. Is there a trick to separating the plates? One side is trying to release while other side is not. [See photos]
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Never mind...perseverence works
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Back together and working like it should. Thanks to everyone for your input/advice and your help. BTW those Ballstuds work great...much better than plastic. Drilled a hole in the Green lever where the little nub broke off and inserted the ballstud...placed it into the proper wheel slot and all three levers work like they should. Next...reinstall into the car. Thanks again for everyone's help.
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Last edited by MORRIE; 06-27-2018 at 08:31 PM.
Anyone have a Detent they want to part with. PM me if you do. Thanks
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I bought a whole assembly on Ebay for the left cam wheel and a detent and sold the other parts without too much of a loss.
Hi all, I am needing to do the fix on my Z3 heater control. Has broken. First question. Im going in via radio gap and also have undone the side of console passenger side and have one arm in there. I nearly got the control arms off and then for some reason pushed them back in. Now they aren't budging. Each of the arms are connected to a cable and I need to get the red one off then the off white one (to repair). How do I do this? Is there a technique?
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