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Practical hints
What to do if …?
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.
LIGHT SENSOR
VISIT WORKSHOP!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.
̈ In the control system, set lamp operation
to manual (
୴ page 149).
̈ Switch on headlamps using the exterior
lamp switch.
BRAKE LIGHT
VISIT WORKSHOP!
Brake lamp illumination is delayed or lamp
is permanently on.
̈ Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The display for the lamps or the system is
malfunctioning.
̈ Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
TURN OFF LIGHTS!
Lamps have been turned on although the
SmartKey in the ignition is in position 0.
̈ Turn off the headlamps
TURN SIG. MIRROR, L
CHECK LIGHT!
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
̈ Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
TURN SIG. MIRROR, R
CHECK LIGHT!
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
̈ Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
TURN SIG., LF
CHECK LIGHT!
BACK-UP LIGHT ON!
The left front turn signal lamp is malfunc-
tioning. A back-up bulb is being used.
̈ Replace the bulb as soon as possible.