I just ordered this after deciding against McGuyver'ing a tool out of something I owned already. I needed something to fit between the Xfer case and crossmember on the wife's e70 for a fluid change. It worked out amazingly. This little stubby 14mm hex could have saved me so much time on my e61 when I was doing the Xfer case fluid on that as well. I made my own tool on that one and it was still too long for this job. I couldn't shorten it anymore as it would not have enough meat left and I'd worry about stripping the drain/fill plugs. Anyway thought I would pass it along. It's made for the fill plug on Jeep transmissions. 10/10 would recommend.

https://www.amazon.com/dp/B06XTZ447K...665720_TE_item

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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)