Mercedes-Benz GLS Operator's Manual page 234

Bicycle rack
232
When loading the bicycle rack, comply with the following notes:
Number of bicycles
3
2
4
When transporting four bicycles or a gross weight between 75 kg and 100 kg, use only bicycle racks with
2
additional support on the guide pin of the trailer tow hitch.
Gross weight of bicy-
cle rack and load
up to 75 kg
2
up to 100 kg
Max. distance :
420 mm
420 mm
Max. distance ;
300 mm
400 mm