If your windscreen wiper motor linkage is worn and popping off this will prevent it. Fits BMW Z4 E85 E86 2002-2008 It is very easy to fit our Wiper Linkage Repair Clip, if you can see the linkage, it can be fitted it in minutes, you do not need to remove the motor or linkage from the car. Fitting Instructions please copy and paste youtu.be/ExLT5s0SxeM into your browser .