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Home >> Mercedes Benz >> 2012 >> GL350 >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Electrical System - Body - 164 Chassis - 1 Of 8 >> Basic Knowledge >> Low-beams actuation, function >> Low-beams actuation, function - GF82.10-P-3002GX

Low-beams actuation, function - GF82.10-P-3002GX

MODEL 164.1/8 up to 8.7.07 with CODE (615) Bi-xenon headlamp unit with integrated curve illumination 

Fig 1: Low-Beams Actuation Communication Diagram
G10118053Courtesy of MERCEDES-BENZ USA

Shown on model 164.1 

Function requirements 

Function 

The upper control panel control unit reads in the status of the rotary light switch via LIN and transmits this to the front SAM control unit via CAN-B.

The front SAM control unit in response actuates the xenon headlamp supply modules accordingly.

The xenon headlamp supply modules generate an ignition auxiliary voltage and pass this on to the xenon headlamp ignition modules. For their part, the xenon headlamp ignition modules generate the ignition voltage required for igniting the xenon bulbs.

When successfully ignited, the xenon headlamps are supplied with operating voltage by the xenon headlamp supply modules.

  Xenon headlamp control unit component description E1n4, E2n4 GF82.10-P-2114GZ 
  Front SAM control unit, component description N10 GF54.21-P-7010GZ
  Upper control panel control unit, component description N72/1
For code (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS), without code (430) Offroad package
GF54.21-P-6040GZ
For code (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS) and code (430) Offroad package without USA ONLY GF54.21-P-6040GZE
For USA ONLY with code (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS) and code (430) Offroad package GF54.21-P-6040GZU
For model 164.8 with and with code (489) AIRmatic (air suspension without level adjustment and adaptive damping system ADS) GF54.21-P-6040GZA
  Rotary light switch, component description S1 GF82.10-P-4106GZ 
  Combination switch, component description S4 GF82.30-P-5000GZ