Mercedes-Benz Series 218 Coupe Introduction Into Service Manual page 81

Exterior lights
Driving lights actuation
Full-LED headlamps
Low beams
The low beam actuation request is made by turning
the exterior lights switch to the "Manual driving
lights" position.
The electronic ignition lock control unit transmits
the circuit status to the front SAM control unit.
From there, the request is output to the LED driving
lights actuation modules via a voltage signal. The
LED actuation modules then actuate the low beams
(short and long-range).
High beams
The high beam actuation request is made by
pressing the combination switch forwards.
The steering column tube module control unit reads
in the position of the combination switch directly
and transmits this to the front SAM control unit.
This sends the request "High beams ON" to the
headlamp control units and outputs a voltage signal
to the LED driving lights actuation modules.
The headlamp control units actuate the headlamp
range adjustment actuator motors. The low beam
modules are raised to increase the range of the low
beams.
The LED high beam actuation modules also actuate
the high beams.
80 Introduction of the New CLS-Class, Model Series 218 Coupe
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i Note
The long-range low beams are integrated in the
low beam modules. The position of the short-
range low beams remains unchanged.
i Note
After replacing an LED on full-LED headlamps,
synchronization has to be performed between the
headlamp and headlamp control unit using
XENTRY-Diagnostics.
i Note
The tourist function can be activated and deacti-
vated via the instrument cluster.