BMW 3 Series Soft Close Boot Trunk Won’t Close or Lock E90 E92 E93

This is a common issue on many BMW’s with a soft-close boot. The symptoms are that you go to close the boot but the ‘close/lock’ motor doesn’t operate. As you drive along, you then get constant ‘boot open’ warnings as the lid bounces over road-bumps etc. There is a 3-wire loom that moves each time the boot is locked/unlocked. Over time, this wears and breaks, thus causing the fault. These 3 wires therefore need to be replaced.