HVAC (old style) removal - any idea?

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Hefeweizen
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HVAC (old style) removal - any idea?

Post by Hefeweizen »

Anyone figured out how to remove the old style HVAC panel? Left side is obvious but the right not
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Rainer
03 330Xi (DD)
85 635CSi (RIP 3 May 19)
80 633CSi (Red Euro, Project)

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rchearty
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Re: HVAC (old style) removal - any idea?

Post by rchearty »

I believe there are 2 screws recessed in the right side slider. One on top and bottom. You will need a tiny screwdriver
Dmckim
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Re: HVAC (old style) removal - any idea?

Post by Dmckim »

rchearty wrote: Mon Oct 22, 2018 2:01 pm I believe there are 2 screws recessed in the right side slider. One on top and bottom. You will need a tiny screwdriver
That’s correct. Pushing out from the bottom after removing radio seems to work the best.

Getting it back in is very difficult. You need to line up the top vent with the HVAC piping. Not easy.

Dale
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Re: HVAC (old style) removal - any idea?

Post by rchearty »

Dmckim wrote: Tue Oct 23, 2018 2:39 pm
rchearty wrote: Mon Oct 22, 2018 2:01 pm I believe there are 2 screws recessed in the right side slider. One on top and bottom. You will need a tiny screwdriver
That’s correct. Pushing out from the bottom after removing radio seems to work the best.

Getting it back in is very difficult. You need to line up the top vent with the HVAC piping. Not easy.

Dale
Buffalo, NY
1980 633csi
+1. took me an entire Sunday afternoon to put the panel back with my new vent sliders. Not worth breaking 40 year old plastic sliders and clips
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Hefeweizen
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Re: HVAC (old style) removal - any idea?

Post by Hefeweizen »

Oh Boy! Thanks guys! I guess I do not have a choice in the matter. Neither AC or heat can be turned on so I figure it has to be the switch
Rainer
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Re: HVAC (old style) removal - any idea?

Post by GRNSHRK »

Rainer, once you get the panel removed, you will find a small micro switch, I think on the dial that changes from heat to A/C, that actually completes the grounding circuit to either blower :-k

Amazingly, if this switch craps out, neither will work, depending on which direction the switch has died, or presumed in your case, perhaps both directions #-o

HTH 8)
:mrgreen:
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Hefeweizen
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Re: HVAC (old style) removal - any idea?

Post by Hefeweizen »

Thanks Bobbo! For all I know the switch may not even be connected but it is the upper fan that blows. Good thing I got some extra micro switches :-)
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Re: HVAC (old style) removal - any idea?

Post by bpoliakoff »

Rainer I just looked at one of the spare panels I have. There are two small screws on the right side of the panel. As Bobbo said, if the micro switch is fried, you are fondued. However that switch can be had at an electronics supply store for less than $5 I think I paid $3 for mine years ago. The specs were printed on the side of the housing.
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