Telephone
Accepting a call ............................. 227
Display message ............................ 259
Menu (on-board computer) ............227
Number from the phone book ....... .228
Redialing ........................................ 228
Rejecting/ending a call .................227
Temperature
Coolant .......................................... 220
Outside temperature ..................... .221
Setting (climate control) ................136
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........74
Immobilizer ...................................... 73
Time
see separate operating instructions
Tire pressure
Calling up (on-board computer) .....338
Checking manually ........................337
Display message ............................ 256
Important safety notes ..................338
Maximum ....................................... 336
Notes ............................................. 335
Pressure loss warning ....................337
Recommended ............................... 334
Tire pressure loss warning
system
General notes ................................ 337
Important safety notes ..................337
Restarting ...................................... 338
Tire pressure monitoring system
Checking the tire pressure
electronically ................................. 340
Function/notes ............................. 338
General notes ................................ 338
Important safety notes ..................339
Restarting ...................................... 341
Warning lamp ................................. 272
Warning message .......................... 341
Tires
Aspect ratio (definition) .................353
Average weight of the vehicle
occupants (definition) ....................351
Bar (definition) ............................... 351
Changing a wheel .......................... 354
Characteristics .............................. 351
Checking ........................................ 331
Definition of terms .........................351Direction of rotatio
n...................... 354
Display message ............................ 256
Distribution of the vehicle
occupants (definition) ....................354
DOT, Tire Identification Number
(TIN) .............................................. .350
DOT (Department of
Transportation) (definition) ............351
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 352
GTW (Gross Trailer Weight)
(definition) ..................................... 352
GVW (Gross Vehicle Weight)
(definition) ..................................... 352
GVWR (Gross Vehicle Weight
Rating) (definition) .........................352
Important safety notes ..................330
Increased vehicle weight due to
optional equipment (definition) ......351
Kilopascal (kPa) (definition) ...........352
Labeling (overview )........................ 347
Load bearing index (definition) ......353
Load index ..................................... 350
Load index (definition) ...................352
M+S tires ....................................... 332
Maximum loaded vehicle weight
(definition) ..................................... 352
Maximum load on a tire (definition) 353
Maximum permissible tire
pressure (definition) ....................... 352
Maximum tire loa d......................... 345
Maximum tire load (definition) .......352
MOExtended tires ..........................315
Optional equipment weight
(definition) ..................................... 353
PSI (pounds per square inch)
(definition) ..................................... 353
Replacing ....................................... 354
Service life ..................................... 332
Sidewall (definition) .......................353
Speed rating (definition) ................352
Storing ........................................... 355
Structure and characteristics
(definition) ..................................... 351
Summer tires ................................. 332
Temperature .................................. 347
TIN (Tire Identification Number)
(definition) ..................................... 35318
Index
Tire bead (definition
)...................... 353
Tire pressure (definition) ................353
Tire pressures (recommended )...... 351
Tire size (data) ............................... 359
Tire size designation, load-bearing
capacity, speed rating .................... 348
Tire tread ....................................... 331
Tire tread (definition) .....................353
Total load limit (definition) .............354
Traction ......................................... 346
Traction (definition) .......................353
Tread wea r..................................... 346
TWR (permissible trailer drawbar
noseweight) (definition) .................353
Uniform Tire Quality Grading
Standards ...................................... 346
Uniform Tire Quality Grading
Standards (definition) ....................351
Unladen weight (definition) ............352
Wear indicator (definition) .............354
Wheel rim (definition) ....................351
see Flat tire
Top Tether ............................................ 65
Towing Important safety guidelines ...........322
Installing the towing eye ................323
Removing the towing eye ...............323
With the rear axle raised ................324
Towing a trailer
Active Parking Assist .....................192
Cleaning the trailer tow hitch ......... 310
Coupling up a trailer ......................214
Decoupling a trailer .......................216
Driving tips .................................... 212
Important safety notes ..................212
Installing the ball coupling .............214
Lights display message ..................243
Mounting dimensions ....................376
Power supply ................................. 217
Removing the ball coupling ............216
Storing the ball coupling ................217
Trailer loads ................................... 376
Towing away
With both axles on the ground .......324
Tow-starting
Emergency engine starting ............325
Important safety notes ..................322Trailer coupling
see Towing a trailer
Trailer loads and drawbar
noseweights ...................................... 216
Trailer towing Active Blind Spot Assist .................209
Active Lane Keeping Assist .... 206, 212
Blind Spot Assist ............................ 204
PARKTRONIC ................................. 187
Permissible trailer loads and
drawbar noseweights .....................216
Transfer case ..................................... 158
Transmission see Automatic transmission
Transmission position display .........153
Transmission position display
(DIRECT SELECT lever) ......................153
Transporting the vehicle ..................324
Traveling uphill Brow of hill ..................................... 173
Driving downhill ............................. 173
Maximum gradient-climbing
capability ....................................... 173
Trim pieces (cleaning instructions) .311
Trip computer (on-board computer) 223
Trip odometer Calling up ....................................... 223
Resetting (on-board computer) ......224
Turn signals
Changing bulbs (front) ...................121
Display message ............................ 244
Switching on/off ........................... 114
TWR (Tongue Weight Rating)
(definition) ......................................... 353
Type identification plate see Vehicle identification plate U
Unlocking Emergency unlocking .......................83
From inside the vehicle (central
unlocking button) ............................. 82 Index
19
V
Vanity mirror (in the sun visor) ........ 283
Vehicle Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 258
Emergency locking ........................... 83
Emergency unlocking .......................83
Equipment ....................................... 23
Individual settings ..........................230
Limited Warranty ............................. 28
Loading .......................................... 342
Locking (in an emergency) ...............83
Locking (SmartKey) .......................... 76
Lowering ........................................ 358
Maintenance .................................... 24
Parking for a long period ................ 165
Pulling away ................................... 147
Raising ........................................... 356
Reporting problems .........................27
Securing from rolling away ............355
Towing away .................................. 322
Transporting .................................. 324
Unlocking (in an emergency) ...........83
Unlocking (SmartKey) ......................76
Vehicle data ................................... 375
Vehicle data ....................................... 375
Vehicle data (off-road driving) Approach/departure angl e............ 376
Fording depth ................................ 375
Maximum gradient climbing ability 376
Vehicle dimensions ...........................375
Vehicle emergency locking ................83
Vehicle identification number see VIN
Vehicle identification plate ..............366
Vehicle tool kit .................................. 314
Video (DVD) ........................................ 227
VIN ...................................................... 366W
Warning and indicator lamps ABS ................................................ 263
Brakes ........................................... 263
Check Engine ................................. 268
Coolant .......................................... 269Distance warning
........................... 271
DISTRONIC PLUS ........................... 271
ESP ®
.............................................. 265
ESP ®
OFF ....................................... 266
Fuel tank ........................................ 268
Overview .......................................... 34
PASSENGER AIRBAG OFF ................49
Reserve fuel ................................... 268
Seat belt ........................................ 261
SRS ................................................ 267
Tire pressure monitor ....................272
Warranty ............................................ 366
Washer fluid Display message ............................ 259
Wheel bolt tightening torque ...........358
Wheel chock ...................................... 355
Wheels Changing a wheel .......................... 354
Checking ........................................ 331
Cleaning ......................................... 307
Cleaning (warning) .........................355
Emergency spare wheel .................361
Important safety notes ..................330
Interchanging/changing ................354
Mounting a new wheel ...................357
Mounting a wheel .......................... 355
Removing a wheel ..........................357
Storing ........................................... 355
Tightening torque ........................... 358
Wheel size/tire size .......................359
Window curtain air bag
Display message ............................ 240
Operation ........................................ .48
Windows
see Side windows
Windshield
Defrosting ...................................... 137
Windshield washer fluid
see Windshield washer system
Windshield washer system ..............305
Notes ............................................. 373
Windshield wipers
Problem (malfunction) ...................126
Rear window wiper ........................123
Replacing the wiper blades ............123
Switching on/off ........................... 12220
Index
Dashboard
Function Page
0043
Steering wheel paddle
shifters
156
0044
Combination switch 114
0087
Instrument cluster 33
0085
Horn
0083
PARKTRONIC warning
display
185
0084
Overhead control panel 38
006B
Operating the climate
control systems
128
006C
Ignition lock 145
Start/Stop button
145 Function Page
006D
Adjusting the steering
wheel manually
104
006E
Adjusting the steering
wheel electrically
104
006F
Cruise control lever 174
0070
Parking brake 165
0071
Diagnostics connection 26
0072
Opening the hood 302
0073
Releasing the parking brake 165
0074
Light switch 11232
Dashboa
rdAt a glance
Instrument cluster
Displays and controls
Function Page
0043
Fuel gauge
0044
Coolant temperature 220
0087
Speedometer with
segments
221 Function Page
0085
Multifunction display 222
0083
Tachometer 220
i
Adjust the instrument cluster lighting
using the on-board computer
(Y page 231). Instrument cluster
33At a glance
Multifunction steering wheel
Function Page
0043
Multifunction display 222
0044
Audio/COMAND display;
see the separate operating
instructions 0087
0059
Switches on the Voice
Control System; see the
separate operating
instructions 0085
0076
Rejects or ends a call 227
Exits phone book/redial
memory
0061
Makes or accepts a call
Switches to the redial
memory
00810082
Adjusts the volume
0063
Mute Function Page
0083
00590065
Selects a menu 221
00630064
Selects a submenu or
scrolls through lists
221
0076
Confirms your selection 221
Hides display messages 235
0084
0038
Back 221
Switches off the Voice
Control System; see the
separate operating
instructionsMultifunction steering wheel
35At a glance
Window curtain air bags
0043are deployed:
R on the side on which an impact occurs
R at the start of an accident with a high rate
of lateral vehicle deceleration or
acceleration, e.g. in a side impact
R regardless of whether the front-passenger
seat is occupied
R independently of the use of the seat belt
R if the vehicle rolls over and the system
determines that window curtain air bag
deployment can offer additional protection
to that provided by the seat belt
R independently of the front air bags
Window curtain air bags 0043will not deploy in
the event of impacts which do not exceed the
system's preset deployment thresholds for
vehicle acceleration/deceleration. You will
then be protected by the fastened seat belt. Occupant Classification System
(OCS)
How the Occupant Classification
System works The Occupant Classification System (OCS)
categorizes the occupant on the front-
passenger seat using a weight sensor. The
front-passenger front air bag is deactivated
automatically for certain weight categories.
The PASSENGER AIR BAG OFF indicator lamp
shows you the current status. If the
PASSENGER AIR BAG OFF indicator lamp is
lit, the passenger air bag is disabled. The system does not deactivate:
R
the side impact air bag
R the pelvis air bag
R the window curtain air bag
R the Emergency Tensioning Devices
To be classified correctly, the front passenger
must sit:
R with the seat belt fastened correctly
R in a position that is as upright as possible
with their back against the seat backrest
R with their feet on the floor
The OCS weight sensor reading is affected if
the occupant's weight is transferred, e.g. by
leaning on the armrest.
If the front-passenger seat, the seat cover or
the seat cushion are damaged, have the
necessary repair work carried out at a
qualified specialist workshop.
For safety reasons, Mercedes-Benz
recommends that you only use seat
accessories that have been approved by
Mercedes-Benz.
Both the driver and the front passenger
should always observe the PASSENGER AIR
BAG OFF indicator lamp as an indication of
whether or not the front passenger is
positioned correctly. Observe also the air bag
display messages that can be displayed in the
instrument cluster (Y page 242). G
WARNING
If the 00730074 indicator lamp illuminates
when an adult or someone larger than a small
individual is in the front-passenger seat, have
the front passenger reposition himself or
herself in the seat until the 00730074
indicator lamp goes out.
In the event of a collision, the air bag control
unit will not allow front-passenger front air
bag deployment when the OCS has classified
the front-passenger seat occupant as
weighing as much as or less than a typical 12-
month-old child in a standard child restraint
or if the front-passenger seat is classified as
being empty. Occupant safety
49Safety
Z
Problems with the Occupant Classification System
Problem Possible causes/consequences and
0050
0050Solutions The PASSENGER AIR
BAG OFF indicator
lights up and remains
on.
The person on the
front-passenger seat:
R
has the weight of a
typical adult
R has been determined
by the system not to
be a child The OCS is malfunctioning.
X
Make sure that the front passenger is sitting in a correct, upright
position.
X Have the OCS checked as soon as possible at a qualified
specialist workshop.
X Observe the additional display messages in the multifunction
display (Y page 242). G
WARNING
If the 00730074 indicator lamp illuminates and remains illuminated when the weight of a typical
adult or someone larger than a small individual has been detected on the passenger seat, do not
allow any occupant to use the passenger seat until the system has been repaired. Problem Possible causes/consequences and
0050 0050Solutions The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or stays on.
The front-passenger
seat is:
R
unoccupied
R occupied with a
weight up to that of a
typical twelve-
month-old child in a
standard child
restraint system The OCS is malfunctioning.
X
Make sure there is nothing between the seat cushion and the
child seat.
X Make sure that the backrest and base of the child restraint
system are resting securely on the front-passenger seat. If
necessary, adjust the position of the front-passenger seat.
X When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight with the front-
passenger seat adjustment. This could result in the seat belt
being pulled too tightly.
X Check the installation of the child restraint system.
X Make sure that no objects are applying additional weight onto
the seat.
X If the PASSENGER AIR BAG OFF indicator lamp remains off, have
the OCS system checked as soon as possible at a qualified
specialist workshop. Do not transport a child on the front-
passenger seat until the OCS has been repaired.
X Observe the additional display messages in the multifunction
display (Y page 242). Occupant safety
53Safety Z