Did you replace the one-time-use wear sensor on the left front wheel?

There is some confusion in the posts above about whether there are four sensors, but most of us have found that our BMWs have two wear sensors, one on the left front and one on the right rear. I can't speak for forum1 and zhehbka, who apparently have one sensor per wheel, as I haven't seen their vehicles, but check the left front first.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue