C320 Coupe Panorama Top
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Joined: Oct 2010
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2003 c320 coupe
C320 Coupe Panorama Top
Hi, I have a 2003 C320 sports coupe with the panorama top. The other day the top opened and closed but the sunshade would not close. The glass closes but the motor chatters after it is closed and the sunhade motor does not move.
So far I have:
1) disassembled the gear assembly for both the glass and sunshade and cleaned and lubed worm gear.
2) cleaned tracks for glass and sunshade.
3) manually closed sunshade and tried to sync. Sunshade retracts fine but will not close, same as before glass motor chatters when trying to close sun shade.
What to do next? Is it the overhead console?
So far I have:
1) disassembled the gear assembly for both the glass and sunshade and cleaned and lubed worm gear.
2) cleaned tracks for glass and sunshade.
3) manually closed sunshade and tried to sync. Sunshade retracts fine but will not close, same as before glass motor chatters when trying to close sun shade.
What to do next? Is it the overhead console?
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 25
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2003 c320 coupe
Dave, can you answer these questions
Dave, thanks, I looked at your thread. I have a couple of questions.
I took apart the gear boxes yesterday and cleaned them and reassembled I did notice that the sunshade cover would not sit flush just like your thread, warped. The glass motor gear box cover looks to be seated fine no warp.
why does the glass motor keep driving when it fully closed and not switch to the sunshade motor? What makes the system switch from on motor to the other?
When I manually close the sunshade it will open no problem but then not close?
Something is just not making sense to me, I am not sure how this system works. Please help me to understand.
Some one told me he that it may be an electrical failure with the overhead control panel. What are your thoughts..
I took apart the gear boxes yesterday and cleaned them and reassembled I did notice that the sunshade cover would not sit flush just like your thread, warped. The glass motor gear box cover looks to be seated fine no warp.
why does the glass motor keep driving when it fully closed and not switch to the sunshade motor? What makes the system switch from on motor to the other?
When I manually close the sunshade it will open no problem but then not close?
Something is just not making sense to me, I am not sure how this system works. Please help me to understand.
Some one told me he that it may be an electrical failure with the overhead control panel. What are your thoughts..
Senior Member
Joined: Sep 2008
Posts: 468
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From: Los Angeles
2005 C230 Sport Coupe
The sunshade will not close until the sunroof motor is stopped. If the sunroof motor is slipping, clicking whatever, the sunshade will not close.
The problem is with your SUNROOF MOTOR THE ONE ON THE DRIVERS SIDE, or LEFT SIDE of the 2 motors. Your cover is warped and the gear is not engaging properly. Take down the LEFT MOTOR and fix it per my thread, re-sync, and this should cure your problem.
The problem is with your SUNROOF MOTOR THE ONE ON THE DRIVERS SIDE, or LEFT SIDE of the 2 motors. Your cover is warped and the gear is not engaging properly. Take down the LEFT MOTOR and fix it per my thread, re-sync, and this should cure your problem.
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 25
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2003 c320 coupe
Thanks Dave, it turned oout that the sunshade gerbox cover was warped and that the glass motor assembly was loose in its mounts.
I just bought this car used at a good price so I am new to the mercedes.
Another question.. Should my smart key open the windows and panorama roof, the owners manual says so but it is not.
Again thank you....
I just bought this car used at a good price so I am new to the mercedes.
Another question.. Should my smart key open the windows and panorama roof, the owners manual says so but it is not.
Again thank you....
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Thread Starter
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Joined: Oct 2010
Posts: 25
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2003 c320 coupe
After reading Davids message I tried opening the windows and pano fully and then using the smart key to lockand close. It did losck and closed windows and pano only half way. It will not open the windows and pano.
Sounds like a sync issue?
Sounds like a sync issue?
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