Do not use a tongue weight that exceeds or falls below the permissible tongue weight
Use a tongue weight as close as possible to the maximum tongue weight
Permissible towing capacity
Permissible rear axle load of the towing vehicle
Permissible gross weight of the towing vehicle
Permissible gross weight of the trailer
Maximum permissible speed of the trailer
The tyre pressure on the rear axle of the towing vehicle is set for a maximum load
The lighting of the connected trailer is operational
In the event of increased rear axle load, the car/trailer combination must not exceed a maximum speed of 100 km/h for reasons concerning the operating permit. This also applies in countries in which the permissible maximum speed for car/trailer combinations is above 100 km/h.
Vehicles with AIRMATIC or E-ACTIVE BODY CONTROL: if the socket of the trailer hitch is occupied, e.g. by a trailer or rear bicycle rack, the vehicle is set to the normal level regardless of the drive program at speeds greater than 30 km/h.
When you are reversing with a trailer, remember to use the Trailer Manoeuvering Assist function More.