Two problems related to sun roof have been reported for the 1999 Mercedes Benz ML320. The most recently reported issues are listed below.
Sun roof parts failed, wind deflector components failed while moon roof was being opened. When I tried to close the roof, it would not do so until I removed the bent part along with deflector. This is actually the second issue with this roof. It was taken to the dealer when new to get the height adjusted with roof line.
Sun roof parts have fallen off.