Installing the ball coupling

If the vehicle/trailer combination is not WARNING
If the vehicle/trailer combination is not secured, the trailer may come loose. As a result, you could cause an accident.
Therefore, make sure that the ball coupling is secured with the bolt supplied and the corresponding spring cotter.

The ball coupling can be damaged if the nut is WARNING
The ball coupling can be damaged if the nut is tightened on the ball coupling with the incorrect torque. This could cause the trailer to detach while driving and an accident could occur as a result.
Therefore, please observe the following:
- do not exceed the maximum permitted noseweight of the ball coupling, the trailer coupling and the trailer tow hitch.
- when installing, always use a retaining ring between the nut and the mounting surface of the ball coupling carrier.
- if the assembled ball coupling has been permanently mounted on the vehicle, have the ball coupling regularly checked for correct installation and torque at a qualified specialist workshop.
- check that the thread under the nut is of the correct length

The detachable ball coupling is located in the stowage well under the cargo compartment floor.

– Open the cargo compartment floor.

Ball coupling and ball coupling stowage well
Ball coupling and ball coupling stowage well (example)

– Remove ball coupling 1 with the bolt and spring cotter from ball coupling stowage well 2.

Protective cap
Protective cap

– Pull protective cap 3 in the direction of the arrow, out of the ball coupling recess.
– Place protective cap 3 into the ball coupling stowage well.

Ball coupling recess
Ball coupling recess

Hole in the ball coupling and ball coupling recess
Hole in the ball coupling and ball coupling recess

– Insert the ball coupling horizontally into ball coupling recess 4 in the direction of the arrow, until the hole in ball coupling 5 and the hole in ball coupling recess 6 align.

Bolt
Bolt

– Slide bolt 7 all the way into the hole in the ball coupling recess and the ball coupling.

Bolt and spring cotter
Bolt and spring cotter

– Secure the bolt using spring cotter 8.

Correctly installed and secured ball coupling
Correctly installed and secured ball coupling

– Check the ball coupling, bolt and spring cotter for correct installation.

If the ball coupling is not correctly installed WARNING
If the ball coupling is not correctly installed and secured, the ball coupling and the trailer could come loose. As a result, you could cause an accident.
Therefore, please observe the following:
RMake sure that the ball coupling is secured with the bolt supplied and the corresponding spring cotter.
RIf the ball coupling cannot be correctly mounted, remove the ball coupling. Under these circumstances, the ball coupling must not be used for trailer towing.
Have the entire trailer tow hitch checked at a qualified specialist workshop.

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