427 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
A minimum height clearance of 5.90 ft
(1.80 m) is required to open the trunk lid.
The handle is located above the rear li-
cense plate recess.
1Unlocking in an emergency
2Handle
Insert the mechanical key into the
trunk lid lock until it stops.
Turn the mechanical key counterclock-
wise to position1 and hold it in this
position.
Pull the handle2 and lift the trunk lid.
The trunk opens.
Turn the mechanical key back and re-
move it from the trunk lid lock.
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 trunk.
Press the central locking switch in the
center console (
page 130).
Check to see whether the locking
knobs on the doors have moved down.
If necessary, push them down
manually.
Remove the mechanical key out of the
SmartKey (
page 426).
Check whether the trunk is locked.
If necessary, lock the trunk with the
mechanical key (
page 128).
Except for the driver’s door, the vehicle
should now be locked.
1Locking
Insert the mechanical key into the
driver’s door lock until it stops.
Turn the mechanical key clockwise to
position1.
The driver’s door is locked.
!Always make sure there is sufficient
overhead clearance.
451 Practical hints
Batteries
Disconnecting the battery
Depress parking brake firmly or move
gear selector lever 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 trunk.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the SmartKey is in the starter switch.
Otherwise the alternator and other
electronic components could be se-
verely damaged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Maintenance Booklet for main-
tenance intervals or contact an autho-
rized Mercedes-Benz Center for further
information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Warning!
G
The electrohydraulic brake system requires
electrical power to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. The same applies if
battery is disconnected. To brake, the driver
must then apply significantly greater brake
pedal pressure and depress the pedal much
further to obtain the expected braking ef-
fect. If necessary, apply full pressure to the
brake pedal. Brakes may only be applied to
the front wheels. Stopping distance is in-
creased! Adjust your driving style according-
ly. For more information, refer to
“Electrohydraulic brake system”
(page 97).
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
459 Practical hints
Towing the vehicle
iTo signal turns while being towed with
the hazard warning flasher in use, turn
SmartKey in starter switch to
position2 and activate the combina-
tion 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 haz-
ard warning flasher will operate again.
!When towing the vehicle with all wheels
on the ground, please note the follow-
ing:
With the automatic central locking acti-
vated and the SmartKey in starter
switch position2, or KEYLESS-GO*
start/stop button in position2, the ve-
hicle doors lock if the left front wheel
as well as the right rear wheel are turn-
ing at vehicle speeds of approximately
9 mph (15 km/h) or more.
Switch off the tow-away alarm
(page 103).
To prevent the vehicle door locks from
locking, deactivate the automatic cen-
tral locking (
page 129).
Towing of the vehicle should only be
done using the properly installed tow-
ing eye bolt. Never attach tow cable,
tow rope or tow rod to the vehicle chas-
sis, frame or suspension parts.
iThe 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 “Battery”
(page 450) or “Jump starting”
(page 454).
For information on manual unlocking of
the gear selector lever,
see (page 428).
462 Practical hintsFusesMain fuse box in passenger compartment
The main fuse box is located behind a cov-
er in the dashboard on the driver’s side.
1Recess in the cover
2CoverOpening
Open the driver’s door.
Insert flat, blunt object as a lever in
recess1 on the edge of cover2.
Loosen cover2 from the dashboard
using lever.
Using your hands, pull cover2 in di-
rection of arrow and remove.
Closing
Hook cover2 into the opening at the
front.
Press cover2 back on until it engag-
es.
Fuse box in trunk
The fuse box is located behind the
left-hand trim panel in the trunk.
Fuse box cover design may vary depending
on vehicle equipment. Cover with turn catches shown 1Cover
2Catches
Opening cover (with turn catches)
Turn catches2 counter-clockwise.
and remove cover1.
Remove cover1.
!Do not use sharp objects such as a
screw driver to open the fuse box
cover2 in the dashboard, as this
could damage it.
493 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Accessory weight
(
page 353)
ADS
(Adaptive D
amping S
ystem)
Automatically adapts the optimum sus-
pension damping to prevailing driving
conditions.
Air pressure
(
page 353)
Airmatic DC*
(Airmatic D
ual C
ontrol)
Automatically selects the optimum sus-
pension tuning and ride height for your
vehicle. Airmatic consists of two com-
ponents:
Adaptive Damping System
Vehicle level controlAlignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
Aspect ratio
(
page 353)
Bar
(page 354)
BAS
(Brake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bead
(
page 354)
Bi-Xenon headlamps*
Headlamps which use an electric arc as
a light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.
Cold tire inflation pressure
(
page 354)
495 Technical terms
FSS PLUS (Canada vehicles)
(F
lexible S
ervice S
ystem PLUS)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates en-
gine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
service, calculates other maintenance
service work required, and calls for the
next maintenance service accordingly.
GAWR
(G
ross A
xle W
eight R
ating)
(
page 354)
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the selector lever.GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs DVD digital maps for
navigation.
GVW
(G
ross V
ehicle W
eight)
(
page 354)
GVWR
(Gross V
ehicle W
eight R
ating)
(
page 354)
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer
and fuel gauge.KEYLESS-GO*
System for entering and operating the
vehicle without the use of a SmartKey.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
Kilopascal (kPa)
(
page 354)
Locking knob
Knob on the door which indicates
whether the door is locked or un-
locked. Pushing the locking knob down
on an individual door from inside will
lock that door.
504 IndexCoolant
Anticorrosion/antifreeze mixing ratio
and quantity 491
Capacities 485
Checking coolant level 325
Messages in display 403, 404, 405
Temperature 314
Temperature indicator 151
Warning lamp 379
Cruise control 243, 494
Message in display 389
Cup holders 278
Cleaning 370
Curb weight 354
Customer Assistance Center see CAC
D
Date display, setting 169, 170
Daytime running lamp mode 142
Setting 170, 171
Deep water see Standing water
Defogging windshield 209, 224
Defrosting, Front 209, 223
Defrosting, Rear 201
Delayed shut-off
Exterior lamps 172
Interior lighting 173Department of Transportation see DOT
Diesel fuel 316
Diesel see Fuel
Difficulties
While driving 58
With starting 52
Digital clock see Clock
Digital speedometer 159
Dimensions, vehicle 482
Direction of rotation (tires) 331
Displays
Digital speedometer 159
Distronic* 249
Maintenance service indicator 360
Messages in display 398
Multifunction display 153
Outside temperature 153, 167
Symbol messages 398
Text messages 388
Vehicle status message memory 163
Vehicle system settings, Control
system 153
Distance to empty (Range), Trip
computer 178Distronic* 247, 494
Activating/deactivating 252
Cleaning system sensor 368
Control system 161
Distance warning function 256
Driving hints 257
Menu 251
Messages in display 389
Sensor cover 368
Warning and indicator lamps 250
Door
Entry lamps 148
Locking/unlocking, SmartKey 34,
108
Locking/unlocking, SmartKey with
KEYLESS-GO* 35, 114
Message in display 406
Opening from inside/outside 119
Remote door unlock (Tele Aid) 292
Unlocking, Mechanical key 426
Door control panel 32
Door handle 32
DOT 354, 494
Drinking and driving 303
505 Index
Drive-Dynamic seat* with multicontour
features 134
Massage function 135
Driving
Abroad 311
Hydroplaning 307
In winter 309
Instructions 47, 303
Problems 58
Safety systems 92
Through standing water 310
With Distronic* 257
Driving safety systems
4MATIC 100
ABS 92
BAS 94
Electrohydraulic brake system 97
ESP
®
94, 494
E
Easy-entry/exit feature 43, 175
Electrical fuses see Fuses
Electrical system, Technical data 481Electrohydraulic brake system 494
Activating/deactivating 98
Driving hints 99
Messages in display 400, 401
Self-check 99
Warning lamp 97
Electronic Stability Program see
ESP
®
94, 494
Emergency calls
Tele Aid calls 287
Emergency operation (Limp Home
Mode) 196
Emergency operations 427
Fuel filler flap 428
Gear selector lever, Unlocking 428
Locking/unlocking the vehicle 426
Remote door unlock 292
Tilt/sliding sunroof* or tilt/sliding pan-
el*, Manual operation 429
Trunk lid, Releasing from inside 127
Trunk lid, Unlocking 427
Emergency tensioning device see ETDEmergency, In case of
Battery, Jump starting 454
First aid kit 422
Flat tire, changing 441
Fuses
Hazard warning flasher 146
Instrument cluster, Indicator
lamps 374, 375, 376, 377, 378,
379, 380, 381, 383
Roadside Assistance 12
Towing the vehicle 457
Emission control 313
Emission control information label 468
Emission control system warranties 10
Emission control vacuum line routing dia-
gram label 468