I just noticed yesterday that when I trigger the sunroof switch on my '99 CLK that the sunroof would only open about 5" at a time, so I would have to activate the switch numerous times before it would fully open. Has anyone else encountered this problem?

Mercedes knows about the problem. It's the overhead control unit(dome lamp). Try to resyncronizing the system by going to the pop-up position & holding up on the switch for 4-6sec, you should hear a "click" from the unit when it completes the task. The modified unit should be avail. & shouldn't have this problem, see your dealer!

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MERCEDES BENZ MASTER GUILD TECHNICIAN
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. TECH
190E 2.3 ITS RACECAR