Am i over weight for our setup?

Hello, 

Firstly thank you in advance for your help. Me and my wife are new to the Caravan scene and have a Abbey 217 for our first van. 

I need some help ? 

i am getting confused with all the weights and restrictions for towing and could do with some help.


My car is a 2012 BMW 520d saloon with a max permissible mass of 2235 and the caravan has a sticker stating 1300kg. 

However my car weighs 1870kg 

As i passed my test after the licence change i can only drive upto 3500kg. My question is What figures do i take to ensure i don't get pulled over. 

I really want to use my car as my wife's Passat is getting old and fragile :) 

Any help would be really appreciated