2010 Mercedes GL-Class Owner's Manual - Page 201
2010 Mercedes GL-Class Manual
Page 201 highlights
Loading and storing X 199 Attach cover caps (Y page 198) and lock them. X Store key and hex key back into the storage well (Y page 284). Adjusting the clamping widths of the crossbars X Only install the crossbars at the exact locations designated on the roof rails. The designated locations for the front crossbars are between the markings engraved on the inside of the roof rails. The designated locations for the rear crossbars are between the gaps on the roof rails. Otherwise, the crossbars, mounted accessories and the objects attached to them could come loose from the vehicle causing an accident, thereby injuring you and other persons and/or causing damage to property, including damage to your vehicle. G Warning! Have the tightening torque checked after mounting the crossbars. The screws could come loose if they are not tightened to a torque of 4 lb-ft (6 Nm). X The clamping widths of the crossbars are factory set for your vehicle. These clamping widths are solely intended for the designated positions. Only install the crossbars at the designated locations and pay attention to the stickers = FRONT and REAR (Y page 198). Press cover strip H piece by piece into groove of crossbar. X Install the crossbars as described (Y page 196). Removing the crossbars ? Screw for clamping claw A Clamping claw G Screws for adjusting clamping width (2 in : Key ; Cover cap = Sticker FRONT (or REAR) ? Screw for clamping claw A Clamping claw total for each side) H Cover strip Z Controls in detail G Warning! Pull cover strip H out of groove until you see screws G on each end of the crossbar. X Turn screws G on both sides counterclockwise approximately 2 rotations. X Place the crossbar at designated locations (Y page 198) on roof rails. X On both sides, make sure the clamping claws A lie flush against the roof rails. If necessary, pull out or push in the clamping claws A. X Tighten screws G. Observe a tightening torque of 4 lb-ft (6 Nm). The width of the clamping claws is correctly adjusted.