On the road for motor vehicles, towing a motor vehicle is only allowed if:
If the maximum permissible towed mass does not exceed 3 . 500 kg .
If a speed of at least 80 km / h . can be reached when driving on level ground
If necessary to remove it from the motorway or motorway road ; the vehicle may only be towed to the nearest exit where it must leave the motorway or motorway road .