Hi,
Have been to my BMW dealer and they can't find the part for this - the connector between the rear wiper valve nipple (the bit that sticks up from the hatchback, surrounded by the nut that holds the wiper arm, if that makes sense) and the rubber tubing that goes up the wiper arm. It is an L shaped assembly, a sort of like the normal L shaped connector (which they supplied and is wrong) but shallower, so as to cap over the valve and go under the weather cover thingie.

Anyone offer me any advice, ever needed this part, have a part number, etc. etc?