Engine Oil Filler Cap (Square Cap) for 323i (1998-2000), 323is (1998-1999), 325Ci (2001-2006), 325i (1992-2005), 325is (1992-1995), 325xi (2001-2005), 328Ci (2000), 328i (1996-2000), 328is (1996-1999), 330Ci (2001-2006), 330i (2001-2005), 330xi (2001-2005), 525i (1991-2005), 528i (1997-2000), 530i (1994-2005), 540i (1994-2003), 740i (1993-2001), 740iL (1993-2001), 745i (2002-2005), 745Li (2002-2005), 750iL (1990-2001), 318i (1991-1998), 318is (1991-1997), 318ti (1995-1999), 323Ci (2000), 650i (2006-2010), X5 (2000-2010), 750i (2006-2008), 750Li (2006-2008), 760Li (2003-2008), Alpina B7 (2007-2008), 550i (2006-2010), 840Ci (1994-1997), 850Ci (1993-1997), 850CSi (1995), 850i (1991-1992), M3 (1995), M5 (2000-2003), Z3 (1996-2002), Z4 (2003-2005), Z8 (2000-2003), 545i (2004-2005), 645Ci (2004-2005), X3 (2004-2006), 760i (2004-2006)