Page 419 of 514
418 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
F
Key
still in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the SmartKey with
KEYLESS-GO* out of the vehicle.
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.
This message is only a reminder.
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
starter switch.
Get a new key
The SmartKey is malfunctioning.
Contact an authorized
Mercedes-Benz Center.
Page 436 of 514
435 Practical hints
Unlocking/locking in an emergency
Unlocking/locking in an emergency
Unlocking the vehicle
If you cannot unlock the vehicle with the
SmartKey or SmartKey with
KEYLESS-GO*, open the driver’s door us-
ing the mechanical key. Removing the mechanical key
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of ar-
row.
Slide mechanical key2 out of the
housing.Unlocking the driver’s door
Insert the mechanical key2 into the
driver’s door lock until it stops.
Turn mechanical key2 counterclock-
wise to position1 until the locking
knobs move up.
The driver’s door is unlocked.
Pull door handle to open the driver’s
door.
i
Unlocking your vehicle with the mechanical
key and opening the driver’s door or the cargo
compartment will trigger the anti-theft alarm sys-
tem.
To cancel the alarm, Insert the SmartKey or
SmartKey with KEYLESS-GO* in the starter
switch.
1
Unlocking
2
Mechanical key
Page 437 of 514

436 Practical hintsUnlocking/locking in an emergencyUnlocking and opening the tailgate
(Vehicles without foldable third row
seat, E 63 AMG only)
A minimum height clearance of 6.81 ft
(2.07 m) is required to open the tailgate.
The emergency release is located on the
inside of the tailgate.
1Release lever
2Cover
Remove cover2 from the trim on the
tailgate.
Push release lever1 in direction of ar-
row.
Lift the tailgate.
Locking the vehicle
If you are unable to lock the vehicle with
the SmartKey or SmartKey with
KEYLESS-GO*, do the following:
Close the passenger door, the rear
doors and the tailgate.
Press the central locking switch in the
center console (
page 127).
Check to see whether the locking
knobs on the doors have moved down.
If necessary, push them down
manually.
Except for the driver’s door, the vehicle
should now be locked.
!
Always make sure there is sufficient over-
head clearance.
i
If the vehicle has previously been locked us-
ing the SmartKey, opening the tailgate from the
inside will trigger the anti-theft alarm system*.
To cancel the alarm, do one of the following:
Press buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter switch.
Page 438 of 514
437 Practical hints
Unlocking/locking in an emergency
Remove the mechanical key2 out of
the SmartKey (
page 435).
Insert the mechanical key2 into the
driver’s door lock until it stops.
Turn the mechanical key2 clockwise
to position1.
The driver’s door is locked.Manually unlocking the gear selector
lever
In case of power failure, the gear selector
lever can be manually unlocked, e.g. to tow
the vehicle.
1Pin
Open the storage compartment in the
center armrest (
page 283).
Take out the cup holder (
page 284).
Insert a suitable object1 (e.g. a pin)
through the hole and press the pin
downward.
Remove pin1.
1
Locking
2
Mechanical key
i
This procedure does not arm the anti-theft
alarm system, nor does it lock the fuel filler flap.
i
The gear selector lever is locked again when
moving it to positionP.
Page 450 of 514

449 Practical hints
Replacing wiper blades
Vehicles with KEYLESS-GO*
Turn off the engine (
page 64).
With the driver’s door closed, the start-
er switch is now in position1.
Turn combination switch to wiper
settingII (
page 57).
With wiper arms in the vertical position,
open the driver’s door.
The starter switch is set to position0,
same as SmartKey removed from start-
er switch.
Turn combination switch to wiper
setting0 (
page 57).
Removing front wiper blades
Fold the wiper arm forward until it
snaps into place.
Turn the wiper blade at a right angle to
wiper arm.
Slide the wiper blade sideways out of
the retainer.
Installing front wiper blades
Slide the wiper blade onto wiper arm
until it locks in place.
Rotate the wiper blade into position
parallel to the wiper arm.
Fold the wiper arm backward to rest on
the windshield. Make sure you hold on
to the wiper when folding the wiper arm
back.
Removing rear wiper blade
!
Do not pull on the wiper blade inserts. They
could tear.
!
Hold on to the wiper when folding the wiper
arm back. If released, the force of the impact
from the tensioning spring could crack the rear
window.
Do not allow the wiper arms to contact the rear
window glass without a wiper blade inserted.
For your convenience, we recommend that you
have this work carried out by an authorized
Mercedes-Benz Center.
Make sure the wiper blades are properly in-
stalled. Improperly installed wiper blades may
cause rear window damage.
Page 465 of 514

464 Practical hintsBatteryDisconnecting the battery
Depress the parking brake pedal.
Make sure the gear selector lever is set
to positionP.
Turn off all electrical consumers.
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Press the start/stop button until
the engine shuts off.
Open the driver’s door.
Open the cargo compartment.
Read and observe safety instructions
and precautions (
page 330) and
(
page 462).
Access the cargo compartment under-
neath the third row seat cushions and
footwell (
page 431).
Remove cover to access battery
(page 462).
Disconnect battery negative lead from
negative terminal2 (
page 462).
Remove cover1 (
page 462) from
the positive terminal.
Disconnect the battery positive lead.
Removing the battery
1Spacer
2Battery
3Battery bracket
Remove the screw-nuts securing the
battery.
Remove the battery bracket3.
Remove spacer1 from the battery’s
ventilation hose.
Warning!
G
With a disconnected battery
you will no longer be able to turn the
SmartKey in the starter switch and
pressing the KEYLESS-GO* start/stop
button on the gear selector lever will
have no effect
the gear selector lever will remain
locked in positionP
!
Always disconnect the battery in the order
described below. Otherwise the vehicle’s
electronics can be damaged.
Page 470 of 514

469 Practical hints
Towing the vehicle
Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.!
If the vehicle is towed with the front axle
raised (not permissible for vehicles with
4MATIC), the gear selector lever must be in
positionN and the engine must be shut off
(SmartKey in starter switch position0 or1).
Active braking action through the ESP
® may
otherwise seriously damage the brake system.
When towing the vehicle with all wheels on the
ground, the gear selector lever must be in
positionN and the SmartKey must be in starter
switch position2.
When towing the vehicle with all wheels on the
ground or the front axle raised, the vehicle may
be towed only for distances up to 30 miles
(50 km) and at a speed not to exceed 30 mph
(50 km/h).
!
Towing of the vehicle should only be done
using the properly installed towing eye bolt.
Never attach tow cable, tow rope or tow rod to
the vehicle chassis, frame or suspension parts.
i
When towing the vehicle with all wheels on
the ground, please note the following:
With the automatic central locking activated and
the SmartKey in starter switch position2, or
KEYLESS-GO
* start/stop button in position2,
the vehicle doors lock if the left front wheel as
well as the right rear wheel are turning at vehicle
speeds of approximately 9 mph (15 km/h) or
more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking
(
page 126).
i
To signal turns while being towed with the
hazard warning flasher in use, turn SmartKey in
starter switch to position2 and activate the
combination switch for the left or right turn sig-
nal in the usual manner – only the selected turn
signal will operate.
Upon canceling the turn signal, the hazard warn-
ing flasher will operate again.
i
The gear selector lever will remain locked in
positionP and the SmartKey will not turn in the
starter switch if the battery is disconnected or
discharged. For more information, see “Batter-
ies” (page 462) and “Jump starting”
(
page 466).
For information on manual unlocking of the gear
selector lever, see (
page 437).
Page 473 of 514

472 Practical hintsFusesFuse box in passenger compartment
The fuse box is located behind a cover in
the dashboard on the driver’s side.
1Cover
2Recess in the coverOpening
Open the driver’s door.
Insert flat, blunt object as a lever in
recess2 on the edge of cover1.
Loosen cover1 from the dashboard
using lever.
Using your hands, pull cover1 in di-
rection of arrow and remove.
Closing
Hook cover1 into the opening at the
front.
Press cover1 back on until it engag-
es.
Fuse box in cargo compartment
The fuse box is located behind the
left-hand trim panel in the cargo compart-
ment.
1Button for unlocking trim panel
2Trim panel
Opening trim panel
Press button1.
Fold down trim panel2.
Closing trim panel
Fold up trim panel2.
!
Do not use sharp objects such as a screw
driver to open the fuse box cover1 in the dash-
board, as this could damage it.
!
The cover1 must be properly positioned
as described to prevent moisture or dirt from en-
tering the fuse box and possibly impairing fuse
operation.