Going over large bumps in convertible models may cause the roll bar to deploy, rendering the roof inoperative. Special tools are generally required to return the roll bar to its stowed position.Google+
Car Problem Reports
Mercedes-Benz CLK63 AMG Going Over Bumps in Convertibles May Cause Roll Bar to Deploy
Mercedes-Benz CLK63 AMG Problem
Visitor, 2007 Mercedes-Benz CLK63 AMG, 23,000 mi
the bars deploy twice on the freeway, and it was going about 60 miles to 70 miles only. they push the bars back in at the dealership both time. now the bars deployed when the car is parked, and I turned off the ignition. Something is wrong with the senor.