HRA [LWR] power module location/task - GF82.10-P-2107T

MODEL 211.0 /2 up to 31.5.06 with CODE (614) Bi-xenon headlamp unit with CODE (615) Bi-xenon headlamp unit with integrated curve illumination except CODE (494) USA version except CODE (498) Japan version

MODEL 211.0 /2 up to 30.6.06 with CODE (614) Bi-xenon headlamp unit with CODE (615) Bi-xenon headlamp unit with integrated curve illumination with CODE (494) USA version with CODE (498) Japan version

Shown on the left front lamp unit (E1), bottom side

Fig 1: Identifying Front Lamp Units And HRA Power Modules

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

HRA [LWR] power module, location	The HRA [LWR] power module (E1n3) and the HRA [LWR] power module (E2n3) are mounted on the bottom of the respective left front (E1) or right front (E2) lamp unit.
HRA [LWR] power module, task	The HRA [LWR] power modules (E1n3, E2n3) actuate the headlamp range adjustment motors or dynamic curve illumination motors (for code (615) Bi-xenon headlamp unit with integrated curve illumination), which signal their positions via potentiometers.