E60, E61, E63, E64, E65, E66, E90 - Bi-Xenon Headlights: Construction

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The bi-xenon headlights include the following components:

The xenon-headlight control unit with
Ignition device and bulb for bi-xenon headlights
Mechanical screen in front of the bulb for redirecting the dipped headlights when main beam is switched on (with lifting solenoid).
Return spring for mechanical screen

The illustration shows the bi-xenon headlights on the E60 as an example:

Fig 1: Cut-Away View Bi-Xenon Headlight

Courtesy of BMW OF NORTH AMERICA, INC.

The following bulb designations are available for bi-xenon headlights:

D2-S bulb: bulb and ignitor are two components
D2-R bulb (for MINI and Rover L30): bulb and ignitor are two components
D1-S bulb: bulb and ignitor form a single component: from E87 and E90, on E60 and E65 from model upgrading 03/2005.
D1-R bulb: not used at present