Driving and operating 173The permissible gross train weightmust not be exceeded. This weight isspecified on the identification plate3 219.Vertical coupling loadThe vertical coupling load is the loadexerted by the trailer on the couplingball. It can be varied by changing theweight distribution when loading thetrailer.The maximum permissible verticalcoupling load (75 kg) is specified onthe towing equipment identificationplate and in the vehicle documents.Always aim for the maximum load,especially in the case of heavytrailers. The vertical coupling loadshould never fall below 25 kg.Rear axle loadThe permissible axle loads (seeidentification plate or vehicledocuments) must not be exceeded.Towing equipmentCautionWhen operating without a trailer,remove the coupling ball bar.Stowage of coupling ball barThe bag with the coupling ball bar isstowed in the rear stowagecompartment on the floor.Place the strap through the lashingeye, wrap around twice and tightenthe strap to secure the bag.Fitting the coupling ball barDisengage and fold down the socket.Remove the sealing plug from theopening for the coupling ball bar andstow it.
