When doing replacement or upgrading on 1984 – 2006 BMW 325e 325 325Ci 325es 325i 325is 325iX 325xi Convertible Sedan Adaptive capsule halogen headlamps HID with, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight1988 9006
1986 – 1987 H5006
High Beam Headlight1988 9005
1986 – 1987 H5001
Front Fog Light1986 – 1988 H3-55W
Back Up Light1986 – 1988 1156
Brake1986 – 1988 1156
Dome Light1986 – 1988 578
Front Side Marker1986 – 1988 12961
Front Turn Signal1986 – 1988 P21/5W
License Plate1986 – 1988 12844
Parking Light1986 – 1988 1157
Rear Side Marker1986 – 1987 12961
Rear Turn Signal1986 – 1988 1156
Tail Light1986 – 1987 12814
1988 12821
Center High Mount Stop Light1986 – 1988 1156
Glove Box1988 578
Trunk1986 – 1988 DE3423
Low Beam Headlight2001 – 2006 H7
High Beam Headlight2001 – 2006 H7
Front Fog Light2001 – 2006 9006
Back Up Light2001 – 2006 1156
Brake2001 – 2006 1156
Dome Light2004 – 2006 194
2001 DE3423
Front Side Marker2002 – 2006 12961
2001 P21/5W
License Plate2001 – 2006 12844
Parking Light2001 12961
2002 – 2006 194
Rear Side Marker2001 – 2003 P21/4W
Rear Turn Signal2004 – 2006 1156
Tail Light2001 – 2006 P21/4W
Front Inner Turn Signal2001 1156
Front Outer Turn Signal2001 12961
Courtesy2002 – 2006 6418
Glove Box2001 – 2006 DE3423
Map Light2004 – 2006 12961
Stepwell2001 DE3423
Trunk2001 – 2006 6411
Low Beam Headlight2001 D2S
High Beam Headlight2001 H7
High Beam and Low Beam Headlight2002 – 2006 D2S
Front Fog Light2001 – 2006 9006
Back Up Light2001 – 2006 1156
Brake2001 – 2006 1156
Daytime Running Light2002 – 2006 H7
Dome Light2004 – 2006 194
2001 DE3423
Front Side Marker2002 – 2006 12961
2001 P21/5W
License Plate2001 – 2006 12844
Parking Light2001 12961
2002 – 2006 194
Rear Side Marker2001 – 2003 P21/4W
Rear Turn Signal2004 – 2006 1156
Tail Light2001 – 2006 P21/4W
Front Inner Turn Signal2001 P21W
Front Outer Turn Signal2001 12961
Courtesy2002 – 2006 6418
Glove Box2001 – 2006 DE3423
Map Light2004 – 2006 12961
Stepwell2001 DE3423
Trunk2001 – 2006 6411
Low Beam Headlight1984 – 1987 H5006
High Beam Headlight1984 – 1987 H5001
Front Fog Light1986 – 1987 H3-55W
Back Up Light1984 – 1987 1156
Brake1984 – 1987 1156
Dome Light1984 – 1987 578
Front Side Marker1986 – 1987 12961
1984 – 1985 T4W
Front Turn Signal1984 – 1987 P21/5W
License Plate1984 – 1987 12844
Parking Light1986 – 1987 1157
1984 – 1985 P21/5W
Rear Side Marker1986 – 1987 12961
1984 – 1985 T4W
Rear Turn Signal1984 – 1987 1156
Tail Light1984 – 1987 12814
Center High Mount Stop Light1986 – 1987 1156
Trunk1984 – 1987 DE3423
Low Beam Headlight1986 – 1987 H5006
High Beam Headlight1986 – 1987 H5001
Front Fog Light1986 – 1987 H3-55W
Back Up Light1986 – 1987 1156
Brake1986 – 1987 1156
Dome Light1986 – 1987 578
Front Side Marker1986 – 1987 12961
Front Turn Signal1986 – 1987 P21/5W
License Plate1986 – 1987 12844
Parking Light1986 – 1987 1157
Rear Side Marker1986 – 1987 12961
Rear Turn Signal1986 – 1987 1156
Tail Light1986 – 1987 12814
Center High Mount Stop Light1986 – 1987 1156
Trunk1986 – 1987 DE3423
Low Beam Headlight1988 – 1989, 1993 – 1995 9006
1990 – 1991 H5006
High Beam Headlight1988 – 1989, 1993 – 1995 9005
1990 – 1991 H5001
Front Fog Light1993 – 1995 H1
1988 – 1991 H3-55W
Back Up Light1988 – 1991, 1993 – 1995 1156
Brake1988 – 1991, 1993 – 1994 1156
1995 1157
Dome Light1988 – 1991, 1993 – 1994 578
1995 DE3423
Front Side Marker1988 – 1991, 1995 12961
1993 – 1994 P21/5W
Front Turn Signal1988 – 1991, 1993 – 1995 P21/5W
License Plate1988 – 1991, 1993 – 1995 12844
Parking Light1988 – 1991, 1993 – 1995 1157
Rear Side Marker1993 – 1994 P21/4W
Rear Turn Signal1988 – 1991, 1993 – 1995 1156
Tail Light1995 1157
1988 – 1991, 1993 – 1994 12821
Center High Mount Stop Light1988 – 1991, 1993 – 1995 1156
Engine Compartment Light1993 – 1995 578
Glove Box1988 – 1991 578
1993 – 1995 DE3423
Map Light1995 6411
Trunk1993 – 1994 6411
1988 – 1991, 1995 DE3423
Low Beam Headlight2001 – 2006 H7
High Beam Headlight2001 – 2006 H7
Front Fog Light2001 9006
2006 H11
2002 – 2005 H8/H11/H16
Back Up Light2001 – 2005 1156
2006 H21W
Brake2001 – 2006 1156
Dome Light2001 – 2006 DE3423
Front Side Marker2002 – 2006 12961
2001 P21/5W
License Plate2001 – 2006 12844
Parking Light2001 12961
2002 – 2006 194
Rear Side Marker2001 – 2005 P21/4W
Rear Turn Signal2002 – 2003, 2005 – 2006 1156
2004 P21W
Tail Light2006 1156
2001 – 2005 P21/4W
Front Inner Turn Signal2001 1156
2002 – 2005 P21W
2006 PY21W
Front Outer Turn Signal2001 – 2006 12961
Courtesy2002 – 2006 6418
Glove Box2001 – 2006 DE3423
Interior Door2002 – 2006 194
Map Light2002 – 2006 12961
Rear Reading Light2002 – 2006 194
Stepwell2002 – 2006 12961
2001 DE3423
Trunk2001 – 2006 6411
Low Beam Headlight2001 D2S
High Beam Headlight2001 H7
High Beam and Low Beam Headlight2006 D1S
2002 – 2005 D2S
Front Fog Light2001 9006
2002 – 2006 H11
Back Up Light2001 – 2005 1156
2006 H21W
Brake2001 – 2006 1156
Daytime Running Light2002 – 2006 H7
Dome Light2001 – 2006 DE3423
Front Side Marker2002 – 2006 12961
2001 P21/5W
License Plate2001 – 2006 12844
Parking Light2001 12961
2002 – 2006 194
Rear Side Marker2001 – 2005 P21/4W
Rear Turn Signal2002 – 2004, 2006 1156
2005 P21W
Tail Light2006 1156
2001 – 2005 P21/4W
Front Inner Turn Signal2001 – 2005 P21W
2006 PY21W
Front Outer Turn Signal2001 – 2006 12961
Courtesy2002 – 2006 6418
Glove Box2001 – 2006 DE3423
Interior Door2002 – 2006 194
Map Light2002 – 2006 12961
Rear Reading Light2002 – 2006 194
Stepwell2002 – 2006 12961
2001 DE3423
Trunk2001 – 2006 6411
Front Fog Light2002 – 2005 H8/H11/H16
Back Up Light2002 – 2005 1156
Brake2002 – 2005 1156
Dome Light2002 – 2005 DE3423
Front Side Marker2002 – 2005 12961
License Plate2002 – 2005 12844
Parking Light2002 – 2005 194
Rear Side Marker2002 – 2005 P21/4W
Rear Turn Signal2002 – 2005 1156
Tail Light2002 – 2005 P21/4W
Front Inner Turn Signal2002 – 2005 P21W
Front Outer Turn Signal2002 – 2005 12961
Courtesy2002 – 2005 6418
Glove Box2002 – 2005 DE3423
Interior Door2002 – 2005 194
Map Light2002 – 2005 12961
Rear Reading Light2002 – 2005 194
Stepwell2002 – 2005 12961
Trunk2002 – 2005 6411
Low Beam Headlight1992 9006
1987 H5006
High Beam Headlight1992 9005
1987 H5001
Front Fog Light1992 H1
1987 H3-55W
Back Up Light1987, 1992 1156
Brake1987, 1992 1156
Dome Light1987, 1992 578
Front Side Marker1987 12961
1992 P21/5W
Front Turn Signal1987, 1992 P21/5W
License Plate1987, 1992 12844
Parking Light1987, 1992 1157
Rear Side Marker1987 12961
1992 P21/4W
Rear Turn Signal1987, 1992 1156
Tail Light1987 12814
1992 12821
Center High Mount Stop Light1987, 1992 1156
Engine Compartment Light1992 578
Glove Box1992 DE3423
Trunk1987, 1992 DE3423
Low Beam Headlight1987, 1992 H5006
High Beam Headlight1987, 1992 H5001
Front Fog Light1987, 1992 H3-55W
Back Up Light1987, 1992 1156
Brake1987, 1992 1156
Dome Light1987, 1992 578
Front Side Marker1987, 1992 12961
Front Turn Signal1987, 1992 P21/5W
License Plate1987, 1992 12844
Parking Light1987, 1992 1157
Rear Side Marker1987 12961
Rear Turn Signal1987, 1992 1156
Tail Light1987 12814
1992 12821
Center High Mount Stop Light1992 1156
1987 921
Glove Box1992 578
Trunk1987, 1992 DE3423
Low Beam Headlight1988 – 1989, 1992 – 1995 9006
1987, 1990 – 1991 H5006
High Beam Headlight1988 – 1989, 1992 – 1995 9005
1987, 1990 – 1991 H5001
Front Fog Light1992 – 1995 H1
1987 – 1991 H3-55W
Back Up Light1987 – 1995 1156
Brake1987 – 1994 1156
1995 1157
Dome Light1987 – 1994 578
1995 DE3423
Front Side Marker1987 – 1991, 1995 12961
1992 – 1994 P21/5W
Front Turn Signal1987 – 1995 P21/5W
License Plate1987 – 1995 12844
Parking Light1987 – 1995 1157
Rear Side Marker1987 12961
1992 – 1994 P21/4W
Rear Turn Signal1987 – 1995 1156
Tail Light1995 1157
1987 12814
1988 – 1994 12821
Center High Mount Stop Light1987 – 1995 1156
Engine Compartment Light1992 – 1995 578
Glove Box1988 – 1991 578
1992 – 1995 DE3423
Map Light1995 6411
Trunk1993 – 1994 6411
1987 – 1992, 1995 DE3423
Low Beam Headlight1988 – 1989 9006
1990 – 1991 H5006
High Beam Headlight1988 – 1989 9005
1990 – 1991 H5001
Front Fog Light1988 – 1991 H3-55W
Back Up Light1988 – 1991 1156
Brake1988 – 1991 1156
Dome Light1988 – 1991 578
Front Side Marker1988 – 1991 12961
Front Turn Signal1988 – 1991 P21/5W
License Plate1988 – 1991 12844
Parking Light1988 – 1991 1157
Rear Turn Signal1988 – 1991 1156
Tail Light1988 – 1991 12821
Center High Mount Stop Light1988 – 1991 1156
Glove Box1988 – 1991 578
Trunk1988 – 1991 DE3423
Low Beam Headlight2001 – 2006 H7
High Beam Headlight2001 – 2006 H7
Front Fog Light2001 9006
2006 H11
2002 – 2005 H8/H11/H16
Back Up Light2001 – 2005 1156
2006 H21W
Brake2001 – 2006 1156
Dome Light2001 – 2006 DE3423
Front Side Marker2002 – 2006 12961
2001 P21/5W
License Plate2001 – 2006 12844
Parking Light2001 12961
2002 – 2006 194
Rear Side Marker2001 – 2005 P21/4W
Rear Turn Signal2002 – 2003, 2005 – 2006 1156
2004 P21W
Tail Light2006 1156
2001 – 2005 P21/4W
Front Inner Turn Signal2001 1156
2002 – 2005 P21W
2006 PY21W
Front Outer Turn Signal2001 – 2006 12961
Courtesy2002 – 2006 6418
Glove Box2001 – 2006 DE3423
Interior Door2002 – 2006 194
Map Light2002 – 2006 12961
Rear Reading Light2002 – 2006 194
Stepwell2002 – 2006 12961
2001 DE3423
Trunk2001 – 2006 6411
Low Beam Headlight2001 D2S
High Beam Headlight2001 H7
High Beam and Low Beam Headlight2006 D1S
2002 – 2005 D2S
Front Fog Light2001 9006
2002 – 2006 H11
Back Up Light2001 – 2005 1156
2006 H21W
Brake2001 – 2006 1156
Daytime Running Light2002 – 2006 H7
Dome Light2001 – 2006 DE3423
Front Side Marker2002 – 2006 12961
2001 P21/5W
License Plate2001 – 2006 12844
Parking Light2001 12961
2002 – 2006 194
Rear Side Marker2001 – 2005 P21/4W
Rear Turn Signal2006 1156
2002 – 2005 P21W
Tail Light2006 1156
2001 – 2005 P21/4W
Front Inner Turn Signal2001 – 2005 P21W
2006 PY21W
Front Outer Turn Signal2001 – 2006 12961
Courtesy2002 – 2006 6418
Glove Box2001 – 2006 DE3423
Interior Door2002 – 2006 194
Map Light2002 – 2006 12961
Rear Reading Light2002 – 2006 194
Stepwell2002 – 2006 12961
2001 DE3423
Trunk2001 – 2006 6411
Front Fog Light2002 – 2005 H8/H11/H16
Back Up Light2002 – 2005 1156
Brake2002 – 2005 1156
Dome Light2002 – 2005 DE3423
Front Side Marker2002 – 2005 12961
License Plate2002 – 2005 12844
Parking Light2002 – 2005 194
Rear Side Marker2002 – 2005 P21/4W
Rear Turn Signal2002 – 2003, 2005 1156
2004 P21W
Tail Light2002 – 2005 P21/4W
Front Inner Turn Signal2002 – 2005 P21W
Front Outer Turn Signal2002 – 2005 12961
Courtesy2002 – 2005 6418
Glove Box2002 – 2005 DE3423
Interior Door2002 – 2005 194
Map Light2002 – 2005 12961
Rear Reading Light2002 – 2005 194
Stepwell2002 – 2005 12961
Trunk2002 – 2005 6411