Quote:
	
	
		| 
					Originally Posted by StumpyPete
					
				 A long time since I fitted one of these but I seem to remember there is a trick to it involving rotating the sensor...it's not that difficult did it a couple of times on my E53s you stick your hand up inside the bumper and twist I think. | 
	
 Something like that...I suggest unplugging the sensor and fitting it to the housing first, to see how it should come together. Then attempt on the bumper, a bit of patience is required.