Page 399 of 481
398 Practical hintsUnlocking/locking in an emergency
Insert the mechanical key2 into the
driver’s door lock until it stops.
Turn the mechanical key clockwise to
position1.
The driver’s door is locked.
Fuel filler flap emergency release
In case the central locking system does
not release the fuel filler flap, you can open
it manually.
1Release knob
Open trunk.
Remove right-side tail trim.
Pull release knob1 in the direction of
arrow.
The fuel filler flap can know be opened.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.
1Selector lever cover
2Release
1
Locking
2
Mechanical key
i
This procedure does not arm the anti-theft
alarm system, nor does it lock the fuel filler flap.
Page 422 of 481

421 Practical hints
Battery
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.
Read and observe safety instructions
and precautions (
page 420).
Remove the luggage box (
page 395).
Disconnect battery negative lead2.
Remove cover1 from the positive ter-
minal.
Disconnect the battery positive lead.
Removing the battery
Remove the screw-nuts securing the
battery.
Remove the battery bracket.
Pull out the battery ventilation tube
from the battery (depending on battery
arrangement in your vehicle model, the
battery ventilation tube is located on
the left or right side of the battery).
Take out the battery.
!
As with any other battery, disconnect the
battery if you do not intend to operate your vehi-
cle for an extended period of time to prevent bat-
tery discharge or connect an accessory battery
charge unit expressly approved by
Mercedes-Benz for your vehicle model to main-
tain the battery charge. Contact an authorized
Mercedes-Benz Center for further information.
The battery, the battery ventilation hose and the
lateral plug must always be securely installed
when the vehicle is in operation.
!
Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch. Otherwise the
alternator and other electronic components
could be severely damaged.
Have the battery checked regularly by an autho-
rized Mercedes-Benz Center.
Refer to Maintenance Booklet for maintenance
intervals or contact your authorized
Mercedes-Benz Center for further information.
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
Page 427 of 481

426 Practical hintsTowing the vehicle
Installing towing eye bolt
Front of vehicle
1Cover on right side of front bumper
To remove cover:
Press mark on cover in direction of ar-
row.
Lift cover off to reveal the threaded
hole for towing eye bolt.
!
Towing of the vehicle should only be done
using the properly installed towing eye bolt. Nev-
er 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 118).
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
signal 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 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 420) or “Jump starting” (
page 423).
For information on manual unlocking of the gear
selector lever, see (
page 398).
Page 430 of 481
429 Practical hintsFuses
Main fuse box in passenger compartment
1CoverOpening
Open the front passenger door.
Insert flat, blunt object as a lever in into
on the edge of cover1 at the position
indicated by the arrow.
Loosen cover1 from the dashboard
using lever.
Using your hands, pull cover1 in the
direction of the arrow and remove.
Closing
Hook cover1 into the opening at the
front.
Press cover1 back on until it engag-
es.
Fuse box in trunk
2Cover
3Catches
Turn catches3 counter-clockwise
and remove cover2.
!
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.
Page 462 of 481

461 Index
Distronic* 218
Activating/deactivating 223
Cleaning system sensor 336
Control system 153
Distance warning function 227
Driving hints 228
Intermittent warning sound 227
Menu 223
Messages in display 359, 360
Sensor cover 336
Symbol in multifunction display 153
Warning and indicator lamps 221
Door
Entry lamps 137
Locking/unlocking, SmartKey 104
Locking/unlocking, SmartKey with
KEYLESS-GO* 108
Message in display 370
Opening from inside/outside 111
Remote door unlock (Tele Aid) 262
Door control panel 34
Door handle, inside 34
DOT 323
Drinking and driving 271Driving
Abroad 280
Hydroplaning 276
In winter 278
Instructions 48
Problems 58
Safety systems 91
Systems 215
Through standing water 279
With Distronic* 218
Driving off 274
Driving safety systems
ABS 91
BAS 92
EBP 93
Electronic traction system 95
ESP
®
94
Driving systems 215
Airmatic DC 231
Cruise control 215
Distronic* 218
Parktronic* 235
Driving tips 175
Accelerator position 175
Kickdown 175Dual control
Airmatic DC 231
E
Easy-entry/exit feature* 45, 166
EBP 93
Electric air pump 416
Electrical fuses see Fuses
Electrical system, Technical data 447
Electronic Brake Proportioning see EBP
Electronic Stability Program see ESP
®
Emergency calls
Tele Aid calls 258
Emergency operation
(Limp-Home Mode) 184
Emergency operations
Fuel filler flap 398
Gear selector lever, Unlocking 398
Locking/unlocking the vehicle 396
Power tilt/sliding sunroof, manual
operation 400
Remote door unlock 262
Trunk lid, Releasing from inside 116
Trunk lid, Unlocking 112
Page 464 of 481

463 Index
Flexible Service System see FSS PLUS
Floormats 253
Fluids
Automatic transmission fluid 449
Brake fluid 450
Capacities 449
Engine coolant 450
Engine oil 449
Power steering fluid 450
Windshield washer and headlamp
cleaning system 450
Fog lamp, rear 131
Fog lamps 131
Messages in display 380, 381, 382,
383, 384
Fog lamps, front
Corner-illuminating* 132
Switching on 131
Front air bags 69
Front lamps see Headlamps
Front passenger front air bag
Messages in display 353
Front passenger front air bag off indicator
lamp 70, 75Front seat head restraints see Head re-
straints
FSS PLUS (Canada vehicles) 330
Fuel
Additives 453
Capacities, Fuel tank 450
Filler flap and cap 283
Filling the tank 283
Fuel reserve warning lamp 348
Premium unleaded gasoline 284
Requirements
Gasoline additives 453
Premium unleaded gasoline 452
Fuel consumption statistics
Since last reset 167
Since start 167
Fuel filler flap 283
Locking/unlocking 283
Opening 283
Fuel tank
Capacity 283
Filler flap 283
Fuels, coolants, lubricants etc. 449
Fuse box in trunk 429Fuses 428
Aids for replacing fuses 428
Fuse box (main) in passenger
compartment 429
Fuse box in trunk 429
Fuse chart 428
Fuse extractor 428
Replacing 428
Spare fuses 428
G
Garage door opener 263
Gasoline see Fuel
GAWR 323
Gear range
Automatic transmission 176
Limiting 176
Shifting into optimal 179, 181
Gear selector lever 171
Cleaning 339
Gearshift pattern 171
Lock 51
Position 172, 173
Shifting procedure 172
Unlocking in an emergency 398
Page 466 of 481

465 Index
I
Identification labels 434
Identification Number, Vehicle (VIN) 435
Ignition 38, 40
Immobilizer 99
Indicator lamps see Lamps, indicator and
warning
Infant and child restraint systems see Chil-
dren in the vehicle
Inflation pressure see
Tires, Inflation pressure 301
Information button (Tele Aid) 261
Inside door handle 111
Installing
Wiper blades 411
Instrument cluster 26, 138
Coolant temperature indicator 139
Illumination brightness 138
Lamps 342
Messages in the multifunction
display 356
Multifunction display 141
Outside temperature indicator 140Instrument lighting see Instrument cluster,
Illumination brightness 138
Instrument panel see Instrument
cluster 138
Instruments and controls see
Cockpit 138
Interior lighting 135
Delayed shut-off 164
Interior rear view mirror 47, 185
Auto dimming 185
Interior storage space see Storage com-
partments
J
Jack 394
Jacking up the vehicle 414
Jump starting 423
K
Key, Mechanical 396
Loss of 110Key, SmartKey
Battery check lamp 105
Checking batteries 110
Factory setting 103
Global locking 104, 105
Global unlocking 104
Locking/unlocking 102, 105
Loss of 110
Messages in display 378
Opening and closing the power
tilt/sliding sunroof 210
Opening and closing the
windows 210
Remote control 102
Replacing batteries 402
Restoring to factory setting 105
Selective setting 104
Starter switch positions 38
Starting the engine 51, 52
Turning off the engine 60
Page 468 of 481

467 Index
Lighting 128
Automatic headlamp mode 129
Combination switch 132
Daytime running lamp mode 130
Door entry lamps 137
Exterior lamp switch 128
Front fog lamps 131
High beams 132
Instrument cluster illumination 138
Interior 135
Locator lighting 131
Low beam 128
Manual headlamp mode 129
Night security illumination 131
Parking lamps 128
Rear fog lamp 131
Settings (control system) 161
Trunk lamp 137
Limp-home mode 184
Loading see Vehicle loading
Loading the vehicle 296Locator lighting 131, 162
Lock button (KEYLESS-GO*)
Door handle 62
Trunk lid 109
Locking the vehicle 59
In an emergency 397
Locking/Unlocking, SmartKey 36, 104
Locking/Unlocking, SmartKey with
KEYLESS-GO* 37
Loss of
Key, Mechanical 110
Key, SmartKey 110
Key, SmartKey with
KEYLESS-GO* 110
Loss of Service and Warranty Information
Booklet 433
Low beam headlamps 55
Replacing bulbs 408
Switching on 55
Lubricants 449
Lumbar support 121M
Main Dimensions 448
Maintenance 12
Calling up service indicator 331
Clearing service indicator
message 330
FSS PLUS (Canada vehicles) 330
Maintenance System 330
Resetting service indicator 331
Service indicator message 329
Service term exceeded 330
Manual headlamp mode 129
Manual shift program CLS 63 AMG 181
Deactivating 183
Maximum load rating, Tires 324
Maximum loaded vehicle weight 324
Maximum tire inflation pressure 324
Mechanical key 396
Memory functions 125
Menus see Control system menus
Microphone, Hands-free 31