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Practical hints
What to do if …?
Display symbol Display message Possible cause/consequence Possible solution
I
Please don’t
forget your key
This display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine shut off and no SmartKey in
the starter switch.
Message is only a reminder.
̈ Insert SmartKey in the starter switch.
̈ Take the SmartKey with
KEYLESS-GO* with you when leaving
the vehicle.
Remove Key
You have forgotten to remove the SmartKey. ̈ Remove the SmartKey from the start-
er switch.
.
Active Headlamps
Auxiliary Bulb On
The active headlamps are malfunctioning. An-
other light is being used.
̈ Contact an authorized Mercedes-Benz
Center as soon as possible.
Active Headlamps
Inoperative
The Bi-Xenon cornering lamps system is mal-
functioning.
̈ Contact an authorized Mercedes-Benz
Center as soon as possible.
AUTO-Light
Inoperative
The light sensor is malfunctioning. The head-
lamps switch on automatically.
̈ Contact an authorized Mercedes-Benz
Center as soon as possible.
To switch off the headlamps:
̈ In the control system, set lamp opera-
tion to manual mode (
୴ page 162).
̈ Switch off the headlamps using the
exterior lamp switch (
୴ page 129).
3rd
Brake Lamp
The high mounted brake lamp is malfunction-
ing. This message will only appear if a critical
number of LEDs have stopped working.
̈ Contact an authorized Mercedes-Benz
Center as soon as possible.