deliriousga

Does the A/C control unit have lights behind the fan **** and the slider *****? They are white in the middle and look like they should be lit up, but mine are dark at night.

I looked through the WSMs, but can't find the control unit assembly to see if there are bulbs and/or what bulbs are used.

TIA!

Randy V

The sliders are illuminated by fiber optic cables that usually break over the years.

Andrew Schauer

EDIT: Looks like Randy beat me to the draw-

Only the fan slider ***** should be lit... there are small fiber optic cables that transmit the light from the one main bulb in the back of the HVAC control unit. I too thought the fan **** should be lit, but it has no bulb or cable.

heinrich

Talk to atb who retrofitted a 2,000 watt (apparently) white light to his fan **** and sliders. You can see his face a mile away even with his headlights on in your face.

IcemanG17

Randy has it right...sometimes they just fall off the levers....just slip them back into place and all is well!

Bill Ball

I have found the fiberoptics to have fallen out of their end sockets. Remove the control unit and disassemble the shell halves. Take a look at the source bulb. Then look for the fiber lines and you may find them lying loose.

Chuck Schreiber

John,

Just rebuilt all lighting in mine a few months ago. The fiber optic cables fall out and get nasty on the end. You need to trim the ends, get new slider controls and drill them out allowing the fiber optics to go all the way to the end of them so you can see them, you also need to replace the bulb, preferably with an LED. PM me and I'll email you pics. They are too big to post here.

Randy V

Chuck, just upload the pics to your Rennlist Member site then reference them in your post here (using the 'image URL' option).

I'm sure we'd all like to see them.

Voytek

I just finished complete reconstruction of all fiberoptics on mine. Also found a way to rebuild those bezels since they often crack. I also managed to illuminate the ****, and installed new 10A relay outside of the box. I wish I took some pictures, but the unit now has 3 LED bulbs (#74) and 5 fiberoptical conduits. One LED illuminates main light box, one feeds two fiberoptic cables for the sliders and the last one feeds the **** bezel and the **** itself. My local shop terminated fiberoptics inside small aluminum bushings - 3 runs and 2 runs per bushing. Aluminum bushings are butt ended with LED lens and secured. The slider **** diffusers had to be drilled to about 80% of their depth to obtain better illumination. I have opened the Fan Switch housing to see if cable could be fed though it, but there is no room there at all. So, to feed fiberoptic cable through I had to drill (thanks for the Dremel tool) 1/4 circle under the **** and feed the fiberoptic cable through. This allows cable to move as **** is rotated. The 1/4 circle must be far enough away from the fan switch position indication gears so there will be no interference in the OFF end positions. **** hole needs to be at the angle such that fiberoptics comes out through **** right at the center, but so that one just clears that center metallic piece (which goes on the fan switch center shaft). This is needed to obtain uniform illumination of the ****. At the end - all looks quite good. I have also done new main bezel to get a bit better red illumination of the high temp numbers with blue LED.

Also, I have modified main instrument cluster illumination by using 3 new matrix LED bulbs (5 LEDs in each) in place of old main light bulbs, and developed 5 LED light bar. LED lens go into the 5 holes drilled into plastic light conduits right into the slot through which original illumination light goes through. At the end I got very uniform illumination through entire cluster.

I will try to post some pictures later. Please contact for any additional info if anyone is interested in new bezels.

BIMMERMIKE

how to remove control unit? I have new *****.

chaadster

Jager has some pre-fabbed, drop-in LED units for dash and HVAC units: http://jageng.com/928LED.htm

Voytek: your project sounds interesting; do try to run up some pics for us!

Bill Ball

- Remove the center air vent - it just slips out if you gently pry around the edges and pull on the louvers.

- Pushing the sides of the console outward, gently lever up the sides of the bezel that surrounds the AC control unit and extends down beside radio, working the outer edges from under the console walls, and try to slide it upward until it clears the radio and is fully released. It's pretty easy to break the bezel - even more easy on reinstallation. It may help to remove the radio - if Blaupunkt, there are two small holes on each side that will release the radio if you insert coat hanger ends an inch or two into the holes at the same time.

- Remove the 4 bolts retain the control unit.

- Pull it out at an angle...I think passenger side first. To get it fully out, unfasten the cable plug on the driver side.

- The control unit case is held together by a bunch of Phillips screws and interlocking snaps along the outside that require some teasing to release.

hupp

I've recently re-constructed my HVAC fiber optics as well, but marginal success. Problem is that I do not have the proper know how/tools to terminate the fiber ends. Light at the ends is not quite as bright because the terminations are not quite right. How does one properly cut and terminate the fiber?

EB338

Anyone here have any experience with the Jager interior lighting upgrades? The A/C control one as well as others?

Voytek

As promised in my earlier post, I eventually got my 1st picture of my illuminated **** with Canon Powershot S2. Additional picture of instument cluster illumination, LED dual dim level control for three pod switches with this feature, and entire mod write-up is here: http://members.***.net/my_1987s4_928...m#illumination. All blue LED look seems to be good choice.