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General E46 Forum
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Old 03-04-2013, 12:52 PM   #1
Tament
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Join Date: Sep 2012
Location: South Florida
Posts: 169
My Ride: 2001 330I
Sun-Roof issue with One touch/Auto Operation

So my sun-roof will not close all the way with One touch or Auto Operation. To explain each better:

Auto operation - press the sun-roof button once and the roof closes all the way.

One Touch operation - Use the keyfob to close the sun-roof.

Manual Operation - Hold the sun-roof button until it closes all the way.

The manual operation works fine for me, but the One touch or Auto Operation does not. When I try to use the one touch and the auto, the glass gets 1/4 of the way closed and returns to the fully opened position. has anyone experienced this issue.

Tentative plan: based on search on this forum

1 - Remove glass and oil track for the foam cover (lack of better word) the manual cover that you can slide open and shut with your hands when the sun-roof is closed.

2 - Change the sun-roof motor (Hopefully not)
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Old 03-04-2013, 01:22 PM   #2
Jesse M
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Join Date: Oct 2010
Location: East Greenwich, RI
Posts: 457
My Ride: 05' ZHP
Those buttons screw up all the time, get a new one. http://www.ecstuning.com/BMW-E46-M3-...rior/ES167025/

It's obviously not the motor because it intermittently works, which leads me to believe the electrical contacts within the switch are failing. Your car is 12 years old .. so it's not out of the realm of possibility at all.

Good luck.
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Last edited by Jesse M; 03-04-2013 at 01:23 PM.
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Old 03-04-2013, 02:15 PM   #3
scim459
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Most likely not the switch. I think it has to do with tension on the tracks or something. There's a way to recalibrate it by holding the switch for a certain amount of time
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Old 03-04-2013, 02:18 PM   #4
bmwguyNC
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Open sunroof with button holding until it reaches open all the way then release switch repress switch to open and hold for a couple seconds. then close sunroof all the way with switch release switch then repress switch for a couple of seconds. This should reset your auto opening and closing limits! Have you disconnected the battery for any reason? Then try auto opening again!
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Old 03-04-2013, 08:39 PM   #5
Tament
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Join Date: Sep 2012
Location: South Florida
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My Ride: 2001 330I
Quote:
Originally Posted by bmwguyNC View Post
Open sunroof with button holding until it reaches open all the way then release switch repress switch to open and hold for a couple seconds. then close sunroof all the way with switch release switch then repress switch for a couple of seconds. This should reset your auto opening and closing limits! Have you disconnected the battery for any reason? Then try auto opening again!
I will try this, Yes the battery was disconnected to work on my door so as to not trip the SRS.
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Old 03-21-2013, 12:41 PM   #6
Tament
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Join Date: Sep 2012
Location: South Florida
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My Ride: 2001 330I
bmwguyNC I tried your suggestion and that did not resolve my issue. i am going to remove the glass, lube up the track and see what happens.
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