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42
Opening and closing
Locking system
Electronic key
Overview of electronic keys
Your vehicle is equipped with a special key sys‐
tem.
You require a key coded for the vehicle to use the
following functions:
switching on the ignition
R
starting the engine
R
shifting gears
R
%
If a vehicle key is lost, obtaining a replace‐
ment is a time-consuming process.
This can only be done through a Mercedes-
Benz Service Centre.
Mercedes-Benz therefore recommends that
you always keep an easily accessible replace‐
ment key with you for emergencies.
If you lose a key, have it disabled at a
Mercedes-Benz Service Centre.
This prevents the lost key from being mis‐
used.
Key with remote control
Key with remote control and lamp check
Your vehicle is equipped with one of two keys.
A mechanical key is integrated in each key with
which you can lock/unlock the doors without
using the remote control, via the co-driver's door
lock.
If the vehicle is equipped with lockable fuel tanks,
you receive additional mechanical keys for the
lockable fuel tank caps.
You can use the Ü and ß buttons to oper‐
ate the central locking system and the conveni‐
ence opening and convenience closing functions
(
page 44).
/
The remote control works regardless of the direc‐
tion in which it is pointed. You can lock/unlock
the vehicle from a distance of up to approx‐
imately 30 m. Only use the remote control in the
immediate vicinity of the vehicle. This helps to
prevent theft.
There is a battery in the key. When this remote
control battery is discharged, the on-board com‐
puter displays an appropriate event window.
Replace the battery in the key (
Observe the information on the "Vehicle key radio
operating permit" (
page 10).
/
Using the emergency key element
Removing
Press release knob 1.
#
Emergency key
2
is pushed out slightly.
Pull out emergency key
#
the intermediate position.
%
You can use the intermediate position of
emergency key
2
to attach the key to a key
ring.
Press release button
1
#
remove emergency key 2.
Inserting
Press release knob 1.
#
Insert emergency key
2
#
position or fully until it engages.
Performing a lamp check with the key
The lamp check assists you in making your depar‐
ture checks and helps you identify defective
bulbs.
page 47).
/
2
until it engages in
again and fully
to the intermediate
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