138 Driving and operatingThe maximum permissible verticalcoupling load (vehicles with 1.2engine: 45 kg, other engines: 55 kg)is specified on the towing equipmentidentification plate and in the vehicledocuments. Always aim for themaximum load, especially in the caseof heavy trailers. The vertical couplingload should never fall below 25 kg.Rear axle loadWhen the trailer is coupled and thetowing vehicle fully loaded, thepermissible rear axle load (seeidentification plate or vehicledocuments) for passenger vehiclesmay be exceeded by 45 kg and thegross vehicle weight rating by 50 kg(on vehicles with 1.2 engine andspecific rear axle application: 30 kg).For vans the permitted rear axle loadmay be exceeded by 25 kg. Thepermitted total load may be exceededby the following amounts with theengines specified below:A10XEP = 30 kgA12XEL, A12XER,Z12XEP= 25 kgZ13DTH, A13DTR = 40 kgZ13DTJ, Z13DTE,A13DTE, A13DTC= 35 kgTrailer operation is not permitted forvans with tyre size 215/45 R 17.If the permitted rear axle load isexceeded a maximum speed of60 mph applies. If lower nationalmaximum speeds are specified fortrailer operation, they must becomplied with.Towing equipmentCautionWhen operating without a trailer,remove the coupling ball bar.Stowage of coupling ball barThe coupling ball bar is stowed in abag in the spare wheel well andsecured to the lashing eyes in theload compartment.When inserting, fit protective cap overrotary knob with key.Fitting the coupling ball bar