Mercedes-Benz GLK-Class 2012 Owners Manual - Manual (Page 311)

Anchorage points for the trailer tow hitch
(example)
:
Anchorage points
;
Rear axle center line
Trailer loads
Missing values were not available at time of
going to print.
All models
Permissible trailer load,
unbraked
Permissible trailer load,
braked
39
3500 lbs
(1588 kg)
Maximum drawbar
noseweight
40
Permissible rear axle
load when towing a trailer
39 At a minimum gradient-climbing capability of 12% from a standstill.
40 The drawbar noseweight is not included in the trailer load.
Trailer tow hitch
309
Technical data
Z