http://tinyurl.com/pvgb26b
BMW e65 e66 power Brake vacuum Booster OEM T.R.W. servo
Brake Booster. part# 34 32 6 779 736, fits:
: (2002-2005): 745i, 745Li
: (2006-2008): 750i, 750Li
: (2003-2006): 760i, 760Li
: (2007-2008): Alpina B7