Just in case you're wondering if roll bars pop up without actually having an accident - I can categorically say they do!
After nipping round one of those annoying 'lumpy' mini round abouts (yes we're mad about our bouts here) I wondered what that clicking sound was!
After looking through my rear view mirror I noticed the top view obscured - ah, the roll bar's popped up
Drove home, how can I say, a little more gently - thinking I would have to go to MB for a repair but a read of the User Manual paid dividends and I felt much relief.
Just hold the roll bar button in for 5 seconds and she's fixed
Thought I'd share that with you guys...