CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

Tonneau cover won’t open.

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Old Jan 1, 2025 | 10:51 PM
  #1  
Kiwibenz's Avatar
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Joined: Jul 2017
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From: Hamilton, New Zealand
2003 E500, 2010 C300
Tonneau cover won’t open.

Hi all,
My 2003 (A209) convertible roof was working fine.
Then a couple of times when I was parked on a slope, the roof wouldn’t shut.
Got car on a flat surface and all ok again.
A few months later I got the ski bag warning issue. I have bought two replacement struts for the ski bag cover, from FCP Euro, installed them and now have no warning message.
Issue now is that when I try to open the roof this happens:
All windows lower,
Tonneau cover does absolutely nothing.
Front section above windscreen detaches.
Message in dash says “top in operation”.

I have a fully charged battery
Plenty of fluid in reservoir
Fuses all ok.

What is likely to be the cause of the tonneau cover not lifting, followed by the bow section?

I have disconnected the battery, for a few days, and my iCarsoft scanner is showing no fault codes in the roof.

I am trying to avoid a manual opening/closing of the roof, if possible. But do wonder if I should try that incase I have somehow got some switches out of sync, with trying to open and close roof previously.

Any suggestions as to what I should do/try.

Cheers,
Graeme

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Old Jan 2, 2025 | 01:41 PM
  #2  
lboodge's Avatar
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Joined: Nov 2019
Posts: 12
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From: windsor, canada
2009 clk 350 cabriolet
type in swisskiss in searchbar he posted a great video on all the different microswitches used to contol the convetible top , i wish i could link to it but i don't know how
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