Update: So the Ultima reman alternator has a bad voltage regulator... ugh. Multimeter kept reading ~11.8v all the way up into the mid 15v range. No bueno.

Had them order 2 alternators from Houston since we got the last one that was in town in case the next one also came with a bad regulator. Will be installing it on Tuesday evening. Hopefully that will be the last time there is an alternator problem with the X5 for awhile... but we'll see.

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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)