Page 428 of 521

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.
Page 429 of 521
428 Practical hintsUnlocking/locking in an emergencyFuel 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 the trunk.
Remove right-side tail trim.
Turn release knob1 clockwise (ar-
row).
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.
1Pin
Open the storage compartment in the
center armrest (
page 279).
Take out the cup holder (
page 279).
Insert a suitable object1 (e.g. a pin)
through the hole and press the pin
downward.
Remove pin1.
iThe gear selector lever is locked again
when moving it to positionP.
Page 506 of 521

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
Page 508 of 521

507 Index
Front passenger front air bag
Messages in display 384
Front passenger front air bag off indicator
lamp 72, 85
Front seat head restraints see Head re-
straints
FSS (Canada vehicles) 360
Fuel 303, 316
Additives 488
Capacities, Fuel tank 486
Diesel fuel 316, 486, 489
Filling the tank 315
Fuel filler flap and cap 315
Fuel reserve warning lamp 380, 411
Premium unleaded gasoline 316
Requirements
Gasoline additives 488
Premium unleaded gasoline 488
Requirements, Diesel fuel 489
Requirements, Octane rating (Gasoline
engine) 489
Technical data 484
Fuel consumption statistics
After start 178
Since last reset 178Fuel filler flap 315
Locking/unlocking 315
Opening 315
Opening in an emergency 428
Fuel reserve warning lamp 25, 411
Fuel tank
Capacity 486
Filler flap 315
Fuel, Premium unleaded gasoline 316,
486, 489
Fuels, coolants, lubricants etc.
Capacities 484
Fuses 461
Aids for replacing fuses 461
Fuse box (main) in passenger
compartment 462
Fuse box in trunk 462
Fuse chart 461
Fuse extractor 461
Replacing 461
Spare fuses 461
G
Garage door opener* 293
Gasoline see Fuel
GAWR 354Gear range 495
Automatic transmission 188
Limiting 188
Shifting into optimal 190
Gear selector lever 50, 183
Lock 50
Message in display 392
Position indicator 183, 185
Unlocking in an emergency 428
Gear selector lever, Cleaning 371
Global Positioning System see GPS
Glove box 276
Good visibility 197
GPS 495
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 354
GVWR 354
H
Halogen headlamps see Headlamps
Hard plastic trim items, cleaning 371
Hazard warning flasher 146
Page 510 of 521

509 Index
K
Key, Mechanical 426
Key, SmartKey
Battery check lamp 106
Changing batteries 431
Factory setting 108
Locking/unlocking 34
Locking/unlocking, Global
setting 108
Locking/unlocking, Selective
setting 108
Loss of 110
Messages in display 411
Opening and closing the power
tilt/sliding sunroof* or panorama
roof with power tilt/sliding
panel* 234
Opening and closing the
windows 234
Positions in starter switch 36
Remote control 106
Starting the engine 50
Turning off engine 62Key, SmartKey with KEYLESS-GO*
Battery check lamp 111
Changing batteries 431, 432
Factory setting 114
Locking, Trunk lid 114
Locking/unlocking 35
Locking/unlocking, Selective
setting 115
Loss of 118
Messages in display 410
Opening and closing the the power
tilt/sliding sunroof* or panorama
roof with power tilt/sliding
panel* 234
Opening and closing the
windows 234
Starting the engine 51
Turning off engine 62
Unlocking, Trunk lid 118
KEYLESS-GO* 495
KEYLESS-GO* see Key, SmartKey with
KEYLESS-GO*
Kickdown 186, 495
Kilopascal 354L
Labels
Certification 468
Emission control information 468
Emission control vacuum line
routing 468
Lamp sensor
Message in display 414
Lamps, exterior
Light sensor 414
Messages in display 412, 413, 414,
415
Lamps, indicator and warning
ABS 25, 374
Battery (SmartKey) 108, 115
Brakes 376
CHECK ENGINE 377, 378
Coolant 379
Distance warning lamp* 250
Electrohydraulic brake system 97
Engine diagnostics 377, 378
Engine malfunction 25, 377, 378
ESP
®
25, 375
Fog lamps 144
Front passenger front air bag off 27,
72, 384, 385
Page 518 of 521

517 Index
Trunk
Cargo area
Closing the lid 121
Fuse box 462
Lamp 149
Lock button, KEYLESS-GO* 117
Message in display 419
Opening 110, 120
Tie-down rings 275
Trunk lid emergency release 127
Unlocking in an emergency 427
Valet locking 128
Turn signal lamps
Cleaning lenses 367
Messages in display 415
Replacing bulbs 437
Turn signals 55
Additional in mirrors 434
Bulbs 434
Cleaning lenses 367
Indicator lamps 25
Turning off engine 62U
Uniform Tire Quality Grading
Standards 356
Units, Settings
Speedometer 166
Temperature 166
Unleaded gasoline, Premium 488
Uphill driving
Cruise control 244
Upholstery
Cleaning 371
Useful features 276
V
Vacuum line routing diagram label 468
Valet locking 128
Vehicle
Battery 450
Care 364
Control system, settings menu 153
Dimensions 482
Individual settings 163, 165
Locking/unlocking 34, 60, 106
Locking/unlocking in an
emergency 426, 427
Lowering 447Modifications and alterations, Operat-
ing safety 16
Towing 457
Washing 364
Weights 483
Vehicle capacity weight 356
Vehicle Identification Number see VIN
Vehicle jack 422, 424
Vehicle level control see Airmatic DC (Dual
Control)*
Vehicle lighting 318
Vehicle loading
Cargo tie-down rings 275
Instructions 274
Load limit 334
Roof rack* 268
Ski sack* 268
Split rear bench seat* 271
Terminology 353
Vehicle maximum load on the tire 356
Vehicle Recovery services, Stolen (Tele
Aid) 293
Vehicle status message memory 162
Vehicle tool kit 424
Vehicle washing 366
VIN 499