No. The replacement pads you put on are warranted by their manufacturer, not BMW, but they are a wear item in any case. BMW don't make brake pads themselves. If you did have a squealing problem it wouldn't be BMW's problem, but other than that no issues.

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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