Put a battery charger on the X as it was totally dead today. The vestigial SLSII module is causing a draw. Small bonus, since installing the Resler USB interface I have not had the SLS Suspension Inactive error pop up on the dash after startup. Only if I toggle the OBC functions with the stalk. So at least I don't have to look at the error or arrows while driving.

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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)