No rear screen wash F20 1 series

[James_33]

I am wondering if someone can point me into the right direction, I have a 2013 BMW 1 series, my front wipers work perfectly and so does the screenwash, however the rear there is no screenwash coming out at all, yet the wiper works, so far all i have done is poke a pin through the small nozzle and still nothing, does anyone know of a fuse i should be looking at or anything else, I've the MOT coming up in a couple of weeks and i know that isn't part of the test but all the same i would like to sort it out.

Cheers in advance