Right jumping on the BMW wagon, the Mrs bought me quite a tidy E30 325i Convertible for my birthday and after getting her serviced I wanted to bleed the brakes starting on the rears first!

Took the center caps off and found a locking wheel nut like this -






And low and behold there is nor sight nor sound of a key to get these off and the nuts fit almost flush with the hole so no chance of getting a larger socket over the top of it!


Anyone ever got one of these off? As I am stuck