First read and observe the introductory information
and safety warnings
The maximum permitted load on a bicycle carrier mounted on the ball coupling is 80 kg at a distance of 300 mm. This distance refers to the gap between the centre of gravity of the bicycle carrier (complete with bicycles) and the middle of the ball coupling.

WARNING

NOTICE
Mechanically positioned ball coupling
Hitching and connecting the trailerRemoving and installing decoupler pulley with freewheel
General description
There are different versions of decoupler pulleys with
freewheel.
Before removing the decoupler pulley with freewheel, it must
be determined which special tool must be used.
...
Noises from shock absorbers
Shock absorbers are often replaced because of noises
(rumbling, etc.) experienced by the customer. Inspections on the
test rig and in the vehicle have shown that in approx. 70 % of
these cases there is no case for complaint. The replacement was
not justi ...
Emptying fuel tank less than 3/4
full, vehicles with four-wheel drive
Special tools and workshop equipment required
Removal wedge -3409-
Special wrench -T10202-
Fuel extractor -VAS 5190A- (for E 85 fuel)
Fuel extractor -VAS 5190- (not shown)
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...