Build status from 03/2003:

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW M3, 2005 BMW M3, 2004 BMW M3, 2003 BMW M3, and 2002 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove ignition unit for xenon headlight. Refer to 63 12 870 REPLACING IGNITION UNIT FOR LEFT XENON HEADLIGHT (COUPE, CONVERTIBLE) .

Turn retaining ring for xenon headlight lamp (1) in direction of arrow and remove.

Fig 1: Removing Lamp For Xenon Headlight

Courtesy of BMW OF NORTH AMERICA, INC.

Remove lamp for xenon headlight (2).

Installation:

Insert lamp for xenon headlight (1) exactly in mounting (2).

Fig 2: Inserting Lamp For Xenon Headlight

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Note type of bulb. Refer to LIGHTS - TECHNICAL DATA - 3-SERIES (E46) .