Page 229 of 424

224 Starter switch — KEYLESS-GO
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Start-/Stop button (vehicles with KEYLESS-GO)
See page 227 for instructions on starting and turning off
the engine.
See page 44 for instructions on the simultaneous use of
the electronic key and the KEYLESS-GO-function.Pressing the start-/stop button (1) on the gear selector
lever without depressing the brake pedal will
sequentially activate the starter switch positions 1 (on)
and 2 (operation) and 0 (off).
The engine can be started with the starter switch in any
position (on, operation or off), as long as the gear
selector lever is in position “P” or “N” and the brake
pedal depressed.
Wa r n i n g !
When leaving the vehicle always take the electronic
key and the KEYLESS-GO-card with you, and lock
the vehicle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may cause
serious personal injury.
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Page 230 of 424

225 Starter switch — KEYLESS-GO
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index “On” position (starter switch position 1, see page 222).
Most electrical consumers can be operated. For detailed
information see respective subjects.
Operation / driving position (starter switch position 2,
see page 222).
All electrical consumers can be operated. Gear selector
is unlocked.
“Off” position (electronic key removable from starter
switch).
Most electrical consumers cannot be operated.
The selector lever is locked in position “P”.
Notes:
For improved recognition of the KEYLESS-GO-card the
doors should be closed when pressing the start-/stop
button.
The gear selector lever can only be moved with the
vehicle battery charged and connected, and the starter
switch in the Operation position. With the gear selector
lever in position “P”, the brake pedal must also be
depressed.Important!
For the KEYLESS-GO-system to function properly, the
operator should observe the following:
•If the KEYLESS-GO-card is positioned farther away
from the vehicle (e.g. inside clothing or a briefcase),
the vehicle cannot be locked (see page 40) or started
with the start-/stop button (see page 227).
•If the KEYLESS-GO-card is removed from the vehicle
while the engine is running, or by placing the card
in front of the center armrest (see page 190), the
message “CHIP-CARD – NOT RECOGNIZED!” will
appear repeatedly while driving in the
multifunction display, see page 38.
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Page 232 of 424

227 Starting and turning off the engine
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Starting and turning off the engine
Before starting
Ensure that parking brake is engaged and that selector
lever is in position “P” or “N”.
Starting
Important!
In areas where temperatures frequently drop below -4°F
(-20°C) we recommend that an engine block heater be
installed. Your authorized Mercedes-Benz Center will
advise you on this subject.
Starting the engine with electronic key:
Do not depress accelerator.
Turn electronic key in starter switch to position 2.
Briefly turn electronic key in starter switch clockwise to
the stop and release. The starter will engage until the
engine is running.
If engine will not run, and the starting procedure stops,
turn electronic key completely to the left and repeat
starting the engine.After several unsuccessful attempts, have the system
checked at the nearest authorized Mercedes-Benz
Center.
Important!
Due to the installed starter non-repeat feature, the
electronic key must be turned completely to the left
before attempting to start the engine again.
Starting the engine with KEYLESS-GO:
Note:
For improved recognition of the chip card the doors
should be closed when pressing the start-/stop button.
Depress brake pedal during the starting procedure.
Briefly press start-/stop button on gear selector lever.
The starter will engage until the engine is running.
If engine will not run, and the starting procedure stops,
press start-/stop button on gear selector lever and repeat
starting the engine.
After several unsuccessful attempts, have the system
checked at the nearest authorized Mercedes-Benz
Center.
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Page 233 of 424

228 Starting and turning off the engine
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Turning off
Turning off the engine with electronic key:
Put the selector lever in position “P” and turn the
electronic key in the starter switch to position 0 to stop
the engine.
The electronic key can only be removed with the
selector lever in position “P”.
Turning off the engine with KEYLESS-GO:
Stop the vehicle and put the selector lever in
position “P”.
Press start-/stop button on the selector lever until the
engine stops. With the driver’s door closed the starter
switch is set to the “On” position (starter switch
position 1). With the driver’s door opened the starter
switch is set to the “Off” position (starter switch
position 0, same as electronic key removed from starter
switch).Note:
The engine can only be turned off with selector lever in
position “P”. If attempting to turn off the engine while
the selector lever is in any other position than “P” a
signal sounds and the message “SELECTOR LEVER
TO P” appears in the multifunction display as a
reminder to move the selector to position “P”.
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Page 247 of 424
242 Driving instructions
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Parking Important!
It is advisable to set the parking brake whenever
parking or leaving the vehicle. In addition, move
selector lever to position “P”.
When parking on hills, always set the parking brake.
Wa r n i n g !
To reduce the risk of personal injury as a result of
vehicle m ovement, before
turning off the engine
and leaving the vehicle always:
1. Keep right foot on service brake pedal.
2. Firmly depress parking brake pedal.
3. Move the selector lever to position “P”.
4. Slowly release service brake pedal.
5. Turn front wheels towards the road curb.
6. Turn the electronic key to starter switch
position 0 and remove, or press start-/stop
button (vehicles with KEYLESS-GO).
7. Take the electronic key and the KEYLESS-GO-
card (vehicles with KEYLESS-GO) and lock
vehicle when leaving.
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Page 374 of 424
368 Emergency engine shut-down
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Emergency engine shut-down
If the engine can no longer be stopped using the
electronic key or the start-/stop button (vehicles with
KEYLESS-GO), the engine can be turned off by
withdrawing two fuses.
For easy removal of fuses use the fuse extractor
(supplied with vehicle tool kit) to pull out the fuses
marked on the fuse chart as “ENGINE EMERGENCY
OFF”.
The fuse chart is also located in the vehicle tool kit,
see page 335.
For fuses see page 325.Fuel filler flap, manual release
Remove the battery cover (see page 346) and the trim
inside the trunk on the right-hand side. Pull the release
knob (arrow) and open the fuel filler flap.
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