what engine do you have
@Dobbie ??
must be either TD42 / TB42 / TB45 / TB48
Whoops..decided to sleep rather than read stuff here....what a woos.
As to engine ....no idea without reading book but the model is Y61 I think.
Manual Diesel engine.
Near the rear door is a sticker which clearly states "towing limit is 3500k and max tow ball weight is 350k". I double checked it in the list "caravan industry / racq towing mass limits" and found the 3200k and 320k as well as the sliding scale for GVM effects on ball mass
Eg. Ball mass
Fully laden vehicle (GVM), ball mass - 100kgs
Reduce GVM by 115kgs, ball mass - 150kgs
Reduce GVM by 200kgs, ball mass - 200kgs........and so on
Page 184 of that publication if anyone wants to check it out....and note 27
My point is that this seems to be the guide used by the caravan industry and used to advise buyers on suitability of vehicle for towing. Articles such as the one Bigcol refers to are misleading, as he suggests, and a good example of "a little knowledge is a dangerous thing" and it is the responsibility of the industry and the public to be aware.
But it's very confusing and certainly not user friendly.
I know I get really critical of overloading and poor loading but I wonder how many have checked out this extensive list to quantify exactly how legal they are.