Lex350

Hi,

I replaced the the actuators and tightened them.
But as soon as the roof opens, the flaps hang loose. If I tighten again, every time they are straightaway lose again.

anybody familiar with this problem?

thanks

Frederick NL

How did you tighten them? If your car still has the original brackets in the flap hinges they are probably bent, allowing the gears to jump tooths. MB sells improved (stronger) ones at reasonable cost. Lubricate those hinges when you're at it, I was surprised how hard it was to rotate them while their gear was free.

Lex350

i replaced them and lubricated them.
it was hard to rotate them indeed. Maybe I should do it all over… I will do that and keep you posted

Frederick NL

If things look okay on the flaps I think the central gear at the motor is suspect.

Lex350

i disassembled the whole mechanism. All gears look fine. Still while operating the roof, the trunk opens en the flaps stop halfway.
if I then push on the upper 2 micro switches with a screwdriver, I am able to close the roof again.

any idea what can be something else to check?

thanks

MikeJ65

The motor and flap gears have to be in sync or they won't have the proper range of travel. You might need to reposition the flaps.

Lex350

thanks for the feedback.

is there any topic or manual on how to sync them? I did not find anything

thanks

Frederick NL

Sounds like are purely mechanical thing: the flaps need to do the same thing at the same moment. Did you create incongruence between them while replacing the brackets?

Lex350

is the malfunction possible due to bad regulation of these nuts?

Lex350

the roof stops in the position as is in the picture. And when I push the upper micro switches at the same time, the roof will close again. I can not open it because the flaps will touch the window while operating. So I suppose the flaps need to be already all way up at that moment of the process?

Lex350

Frederick NL

This should show it. I'll try to post the reverse sequence as well.

Lex350

thanks for the movie. And I know that’s the way how it should go. But the flaps stop midway and then the roof stops. This is because the micro switches of the flaps are not activated. So when I press the upper micro switches, it works again.
but every time when I open it, the flaps stop halfway.

Frederick NL

Are you able to post a clear photo of your right hand front lock, at the front of the roof panel? Is the black plastic 'finger' undamaged and stable?

Lex350

could you please specify that?
I have absolutely no idea what you are referring to 😅 sorry for that