Repaired driver's front window regulator today. Used the $12 replacement kits available on ebay that came with the sliders and the new window clips. Both of my clips had broken and one of the sliders. I left the one OEM slider still in good shape but added the zip tie fix to both the new aftermarket and old OEM slider to prevent this nonsense in the future.

Felt pretty darn good doing it this way rather than $200 for a new regulator.

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2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)

2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)