Practical hints
What to do if ...
Left display
Right display
F
Key
still
in vehicle
.
3rd brake lamp
Brake lamp
Left
Substitute
bulb on
374
Possible cause/consequence
A SmartKey with KEYLESS-GO* left
in the vehicle was recognized while
locking the vehicle from the out-
side.
The high mounted brake lamp is
malfunctioning.
The left brake lamp is malfunction-
ing. A substitute bulb has been
brought into use.
Possible solution
Take the SmartKey with KEYLESS-GO* out of
the vehicle.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Visit an authorized Mercedes-Benz Center as
soon as possible.