Arms for the sunroof wind deflector break; if the broken pieces are not removed, they can jam the sunroof.
Car Problem Reports
Mercedes-Benz ML55 AMG Arms for Sunroof Wind Deflector May Break
Mercedes-Benz ML55 AMG Problem
Average Mileage: 99,000 mi (90,000 mi - 108,000 mi)
Small plastic wind deflector pieces broke, sunroof works okay, did not replace arms.
Visitor, 2001 Mercedes-Benz ML55 AMG, 108,000 mi
The plastic pieces that hold the arms of the wind deflector broke on both sides. I removed them from the track so the sunroof would not jam. Will contact the dealership to find out if these small plastic retainers can be sold separately.