Upper tailgate button not working!!

[bluejazzer]

Solved my problem (kind of). Took the trim off and pulled it apart. Now this is quite difficult as the thing appears to have been melted together, presumably to seal it and keep the water out. So, on inspection, 2 of the 4 wires inside had worked loose. Result methinks, just solder them back on and bobs yer uncle. However, when i took the pcb out for easier access i found the back had corroded and the bus bars were completely gone for about 4 inches!!! So its goosed then! Bunch of arse.
Take note BMW. If you have 2 pieces of plastic and you need to join them together to keep them watertight. Dont melt them together!!!!!! Use a bit of rubber! It works for the rest of the bleeding car manufacturing world!