Had mine trigger CEL for that part at around 30k. Parts ordered and replaced within a few days.

I still have 21000 miles until next oil change, that is after driving almost 4000 miles since last oil change. Asked my dealer to reset it because whoever reseted the last time, obviously did it wrong. When I got my car back, it still had 21000 miles and said "CBS takes care of milage until next oil change" on the invoice. You would think, common sense in any mechanic would say "25000 miles per oil change" doesn't sound right. Obviously not the case with some. I am going to have to get that taken cared of on my next visit.

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2011 X3 35i
2008 X5 4.8i
2003 330xi -sold-
2001 X5 4.4i -sold-
2001 M5 -sold-
2001 M Roadster (SCed, Highly modified) -sold-
2000 M Roadster -sold-
1995 325is -sold-