Top positive review
You can do it, save yourself $300
Reviewed in the United States on September 1, 2016
Go find the Youtube videos and you'll be in business. Verify that it fits your car - in my case E91 Wagon, 2007 328xi. Use a plastic prying tool or a screwdriver wrapped in tape to lift up the faux wood trim, remove two torx screws in armrest. Gently pry off plastic trim over door pull, remove one more torx screw. Starting from bottom of door gently pry and then pull door panel away. Disconnect speaker. Gently pry switch out, disconnect, set door panel and switch aside after disconnecting door latch - it's like a bicycle brake cable. Remove weather guard foam jawn, use a knife, that adhesive will make black snot string a mile long if you're not careful. Loosen three 10mm nuts holding regulator in. Remove three torx screws holding motor to regulator. Disconnect wiring harness from motor, set aside. Push on the plastic clip that the glass is sitting in with a screwdriver, lift glass up, weave the old broken regulator out of the door. Weave the new regulator in, use the nuts to hold it loosely. Snap the glass firmly into the clip. Reinstall the motor. Tighten everything. Connect up the switch, test. Disconnect switch, put weather jawn back. Put door panel back, take your time. You might need to reset the window safety switch settings, use the Google. Good luck, you can do this. Total time - under an hour. My cost under $40, dealer/garage $300 - $350.