I just noticed the back end of the 945's sun roof sits unevenly, along with
some more quick observations:

- I first noticed it with the left rear coner tilted up.
- I operated the sun roof backwards all the way, and it seemed ok in this
position, and glided without noticeable noise.
- I then closed it. It made a rapid noise which sounded "eg-eg-eg...". At
the end of the travel, the left rear now then sat flush with the roof,
and the right rear corner is below the roof by about 3/8 to 1/2 an inch.
- I then tiled it up, and heard similar noise but a little louder noise
as when closing it from slide open position. The left rear corner came
tilted up, but the right rear one barely made to the roof.

I tried the above several times and the results seemed to be the same.

My questions are:
1. What could have caused this? Could a dropping soccer ball, say, have
bumped the control mechanism or sheet metal out of alignment?
2. How do I diagnose it?
3. Is it fixable by myself? I consider myself as having slightly above average
automotive skill. (I have printed a copy of sun roof section in the
700/900FAQ.)

Much TIA,
Lih-Yen

The problem is not completely fixed yet but at least
now it sits evenly in closed position.

I took the motor cover plate off and immediately
noticed the two hex head motor mounting screws were
almost falling off. I coated the threads with locktite
and tightened them. All is fine except I operated the
motor several times while it was not engaging the
actuators and lost the zero position setting.

Lih-Yen

Hi there ---

I once remember playing with a the factory sunroof on my 1991 740. Take out the crank, or motor, or whatever that operates your sunroof. Perhaps you had a loose crank. There should be 2 sets of rail-like things. These pull each side of the sunroof. You'll know what I mean when you see it. I bet that the crank or motor slipped and caused one track to be ahead of the other. Use a screwdriver or some similar object to carefully manipluate the tracks so the sunroof is even. Or you can remove the crank/motor and try to push the sunroof straight. Let me know if you don't know what I mean, b/c it's kind of hard to explain. But just play with the roof itself (with crank/motor removed) and you should get results!

Take out the motor (away from the sunroof gears) and move it back and forth until you get it at 0 position again. You'll know when you get it. Do this with the sunroof how you want it to be when closed. Then re-install the motor and it should run fine.

One more thing--- you leave the motor connected and operate it electronically until you get it to stop at 0 position. It will automatically stop for you. You just have to imagine it in operation to know which stop is when the sunroof is closed.

Hi,

Thanks for all the information. Fortunately I got the
roof closed and sitting even in the closed position
before a pretty nasty down pour yesterday.

I think there may be two sets of gears that move the
roof in tilt-up (vent) and slide back (open) positions.
I will have to wait until this weekend to remove the
motor and make necessary adjustments.

Thanks again,
Lih-Yen