instrument cluster MERCEDES-BENZ R320 2010 W251 Owner's Manual

Cargo net ...........................................
196
Cargo tie-down rings .........................188
Carpets, cleaning .............................. 267
Central locking
Automatic ................................ 74, 137
KEYLESS-GO
.................................... 71
Locking/unlocking from inside ........ 74
SmartKey ......................................... 70
Central locking/unlocking switch .....74
Certification label .............................. 344
Children in the vehicle
Air bags ........................................... 37
BabySmart™ air bag deactivation
system ............................................. 45
Child safety locks (rear doors) ......... 61
Child seat anchors – LATCH-type ....60
Indicator lamp, front passenger
front air bag off (Canada only) ......... 45
Indicator lamp, front passenger
front air bag off (USA only) .............. 42
Infant and child restraint systems .... 55
OCS (Occupant Classification
System) ........................................... 42
Override switch ................................ 62
Safety notes ..................................... 55
Tether anchorage points .................. 57
Top tether ........................................ 57
Child safety
see Children in the vehicle
Child seat anchors – LATCH-type
see Children in the vehicle
Chrome-plated exhaust tip,
cleaning .............................................. 268
Cigarette lighter ................................ 205
Climate control system ....................162
3-zone automatic climate control ..170
Air conditioning .....................167, 175
Air conditioning refrigerant ............ 352
Air distribution ....................... 168, 177
Air recirculation mode ........... 169, 179
Air volume ............................. 168, 178
Automatic mode .................... 167, 176
Climate control .............................. 164
Deactivating system ..............166, 175
Front defroster ...................... 168, 178
Residual heat and
ventilation .............................. 170, 180
Temperature .......................... 168, 176Clock
............................................ 28, 133
Cockpit ................................................. 27
Cold tire inflation pressure ..............249
Collapsible tire (spare wheel) ..........350
Collapsible wheel chock ...................272
COMAND system see separate COMAND system
operating instructions

Combination switch ..........................100
Comfort submenu Easy-entry/exit feature .................. 137
Fold-in function for exterior rear
view mirrors ................................... 138
Seat belt adjustment feature ......... 138
Compass
Calling up ....................................... 216
Control system .................................. 123
Multifunction display .....................125
Multifunction steering wheel ......... 123
Resetting to factory settings .......... 131
Control system menus ...................... 126
AIRMATIC/Compass ...................... 129
Audio/DVD .................................... 128
Distronic ........................................ 129
Navigation ..................................... 129
Settings ......................................... 130
Standard display ............................ 126
Telephone ...................................... 140
Trip computer ................................ 139
Vehicle status message memory ...130
Control system submenus
Comfort ......................................... 137
Instrument cluster .........................132
Lighting .......................................... 134
Time/Date ..................................... 133
Vehicle ........................................... 137
Coolant
Anticorrosion/antifreeze ............... 356
Capacities ...................................... 351
Checking level ............................... 225
Messages in the multifunction
display ........................................... 290
Corner-illuminating front fog
lamps .................................................. 101
Cruise control .................................... 142
Activating ....................................... 143
Canceling ....................................... 1436
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Changing the set speed
.................144
Last stored speed .......................... 144
Lever ..............................................
143
Messages in the mutlifunction
display ........................................... 280
Resume function ............................ 144
Setting current speed .................... 143
Cup holders ........................................ 201
Curb weight ....................................... 249
Customer Assistance Center (CAC) ...23
Customer Relations Department .......23 D
Dashboard see Instrument cluster


Data recording ..................................... 23
Date, Setting ...................................... 134
Daytime running lamp mode ..............99
Switching on or off ......................... 134
Deep water
see Standing water
Defroster
Rear window .................................. 180
Windshield ............................. 168, 178
Delayed shut-off
Exterior lamps ................................ 135
Interior lighting .............................. 136
Department of Transportation
see DOT
Diesel engine
Preglow indicator lamp ....................29
Diesel fuel
see Fuel
Difficulties
While driving .................................. 113
With starting .................................. 111
Digital clock
see Clock
Digital speedometer .........................127
Dimensions (vehicle) see Vehicle specification
Direction of rotation (tires) ..............240
Displays
Digital speedometer ......................127
Distronic ........................................ 146
Maintenance service indicator .......261 Messages in the multifunction
display

........................................... 274
Multifunction display .....................125
Outside temperature .............127, 133
Symbol messages .......................... 285
Text messages ............................... 275
Trip computer ................................ 139
Vehicle status message memory ...130
Vehicle system settings ................. 130
Distronic ............................................ 145
Cleaning system sensor cover ....... 265
Control system .............................. 129
Distance warning function .............152
Distance warning
lamp ...................................... 147, 304
Driving with .................................... 151
Menu ............................................. 147
Messages in the multifunction
display ........................................... 280
Resume function ............................ 150
Sensor cover .................................. 265
Speed settings ............................... 149
Door control panel .............................. 33
Door handles ........................................ 33
Doors
Child safety locks ............................ 61
Locking/unlocking (KEYLESS-GO) ...71
Locking/unlocking (SmartKey) ........ 70
Messages in the multifunction
display ........................................... 289
Opening from inside ......................... 74
Remote door unlock (Tele Aid) ....... 212
Unlocking (Mechanical key) ........... 308
DOT (Department of
Transportation) .................................. 249
Drinking and driving .........................253
Driving
Abroad ........................................... 259
Hydroplaning ................................. 255
Instructions ........................... 110, 253
In winter ........................................ 252
Problems ....................................... 113
Safety systems ................................ 63
Systems ......................................... 142
Through standing water .................256
With Distronic ................................ 151
Driving and parking
Safety notes .................................. 110 Index
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Gross Vehicle Weight
see GVW
Gross Vehicle Weight Rating
see GVWR
GTW (Gross Trailer Weight) ..............249
GVW (Gross Vehicle Weight) ............249
GVWR (Gross Vehicle Weight
Rating) ................................................ 249H
Halogen headlamps see Headlamps


Hard plastic trim items, cleaning ....267
Hazard warning flasher ....................101
Headlamp cleaning system .............. 101
Headlamps
Active Bi-Xenon headlamps ............. 97
Automatic headlamp mode .............. 98
Bi-Xenon .................................. 97, 313
Cleaning lenses ............................. 265
Cleaning system ............................ 101
Daytime running lamp mode ............99
Delayed shut-off ............................ 135
Halogen ......................................... 313
High-beam flasher .........................101
High-beam headlamps ...................100
Low-beam headlamps ...................... 98
Replacing bulbs ............................. 312
Switch .............................................. 97
Headliner, cleaning and care of .......267
Head restraints .................................... 81
Adjustment ................................ 81, 83
NECK-PRO active front head
restraints ......................................... 53
NECK-PRO active front head
restraints, resetting ....................... 310
Heated steering wheel ........................93
Height adjustment
Seat belt outlet ................................ 50
Seats ............................................... 81
Vehicle level control ...................... 154
High-beam flasher ............................. 101
High-beam headlamps ..............100, 313
Indicator lamp .................................. 29
Hill-start assist system ..................... 153
Hinged quarter windows .................. 107Hood ...................................................
222
Messages in the multifunction
display

........................................... 288
Hooks ................................................. 189
Horn ...................................................... 27
HVAC see Climate control system
Hydroplaning ..................................... 255 I
Identification labels ..........................344
Identification number, vehicle
(VIN) ................................................... 345
Ignition ................................... 79, 80, 111
Immobilizer .......................................... 67
Indicator lamps see Lamps, indicator and warning


Infant and child restraint systems
see Children in the vehicle
Inflation pressure
see Tires, Inflation pressure
Infrared reflecting windshield .........217
Inside door handle .............................. 74
Instrument cluster ......................28, 122
Illumination .................................... 123
Lamps ............................................ 299
Multifunction display .....................125
Instrument lighting
see Instrument cluster, Illumination
Instrument panel
see Instrument cluster
Instruments and controls
see Cockpit
Interior lighting
Delayed shut-off ............................ 136
Emergency lighting ........................ 103
Front .............................................. 102
Front reading lamps ....................... 102
Rear ............................................... 103
Rear reading lamps ........................ 103
Interior rear view mirror .....................94
Auto-dimming rear view mirrors ....... 94
Interior storage spaces
see Storage compartments
Intermittent wiping
Rain sensor .................................... 10410
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J
Jack ..................................................... 272
Jump starting ..................................... 336K
Key, Mechanical
Loss of ............................................. 73
Unlocking/locking manually .......... 308
Key, SmartKey
Battery check lamp .......................... 73
Checking batteries ........................... 73
Factory setting
........................... 71, 72
Global locking (KEYLESS-
GO) .................................................. 73
Global locking (SmartKey) ................ 71
Global unlocking (KEYLESS-
GO) ............................................ 72, 73
Global unlocking
(SmartKey) ....................................... 71
Important notes on KEYLESS-GO .....72
Locking/unlocking ........................... 70
Loss of ............................................. 73
Messages in the multifunction
display ........................................... 289
Opening and closing the power
tilt/sliding sunroof or the
panorama roof ............................... 108
Opening and closing the windows . 108
Remote control ................................ 70
Replacing batteries ........................ 310
Restoring to factory setting ....... 71, 73
Selective setting ........................ 71, 73
Starter switch positions ................... 79
KEYLESS-GO
Starter switch positions ................... 80
Kickdown ........................................... 119
Kilopascal (air pressure unit) ...........249 L
Labels
Certification ................................... 344
Emission control information

......... 345 Tire and Loading Information
placard

........................................... 236
Tire inflation pressure ....................230
Lamps, exterior
Exterior lamp switch ........................ 97
Front .............................................. 313
Messages in the multifunction
display ........................................... 295
Rear ............................................... 313
Switching on/off .............................. 97
Lamps, indicator and warning
ABS .......................................... 28, 300
Brakes ..................................... 28, 301
Distance warning
lamp ........................ 28, 147, 152, 304
Engine malfunction .................. 29, 305
ESP ®
........................................ 28, 303
Fog lamps ........................................ 99
Front passenger front air bag off
(Canada only) .......................... 45, 307
Front passenger front air bag off
(USA only) ................................ 42, 307
Fuel tank reserve ..................... 29, 305
High-beam headlamps .............29, 100
Instrument cluster ...................28, 299
Low-beam headlamps ................ 29, 98
Low tire pressure/TPMS
malfunction telltale .................. 28, 306
Seat belt telltale ................29, 51, 302
SRS .................................... 29, 36, 303
Turn signals ..................................... 28
Language, selecting ..........................133
LATCH-type child seat anchors see Children in the vehicle
License plate lamps
Messages in the multifunction
display ........................................... 296
Replacing bulbs ............................. 314
Light alloy wheels, cleaning .............267
Lighter see Cigarette lighter
Lighting ................................................ 97
Daytime running lamp mode ............99
Exterior ............................................ 97
Interior ........................................... 102
Limp-home mode .............................. 121
Load index (tires) ......................245, 249 Index
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Exterior view
....................................... 26
Cockpit ................................................. 27
Instrument cluster ..............................28
Multifunction steering wheel .............30
Center console .................................... 31
Overhead control panel ......................32
Door control panel .............................. 33 25At a glance
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Cockpit
Function Page
:
Cruise control lever:
Cruise control 142
Distronic 145
;
Instrument cluster 28,
122 =
Multifunction steering
wheel 30,
123 ?
Horn
A
Steering wheel gearshift
control
121
B
Gear selector lever 116
C
Front Parktronic warning
indicators
158
D
Overhead control panel 32
E
Glove box lid release, glove
box lock
198
F
Glove box 197
G
Center console 31
H
Power outlet
205 Function Page
I
Starter switch 79
J
Steering wheel adjustment,
manual
91
K
Steering wheel adjustment,
electrical
91
Heated steering wheel 93
L
On-board diagnostics
(OBD) socket
M
Hood lock release 222
N
Parking brake release 114
O
Parking brake pedal 114
P
Door control panel 33
Q
Exterior lamp switch 97
R
Combination switch:
Turn signals 100
Wipers 103
High beam 100Cockpit
27At a glance
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Instrument cluster
Function Page
:
# Left turn signal
indicator lamp
;
To dim instrument cluster
illumination
123
=
Reset button for:
Trip odometer 123
Settings 131
?
To brighten instrument
cluster illumination
123
A
! Right turn signal
indicator lamp
B
Clock 133
C
Speedometer with:
! Antilock Brake
System (ABS) indicator
lamp
300
È Variable speed limiter
indicator lamp
2 Function Page
$ Brake warning lamp,
USA only
301
d ESP
®
warning lamp 303
· Distance warning
lamp
3
304
J Brake warning lamp,
Canada only
301
h Combination low tire
pressure/TPMS
malfunction telltale, USA
only
232,
306 2
Lamp without function. It illuminates when the ignition is on. It should go out when the engine is running.
3 Vehicles without Distronic: Warning lamp without function. It illuminates when the ignition is on. It should
go out when the engine is running. 28
Instrument clusterAt a glance
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Function Page
D
Multifunction display with:
Trip odometer 125
Main odometer 125
E
Tachometer with:
7 Seat belt telltale 51,
302 % Preglow indicator
lamp, diesel engine only
111
+ Supplemental
Restraint System (SRS)
indicator lamp
36,
303 L Low-beam headlamp
indicator lamp
98
; Engine malfunction
indicator lamp, Canada only
305
! Engine malfunction
indicator lamp, USA only
305
K High-beam headlamp
indicator lamp
100
F
Fuel gauge with:
Fuel tank reserve warning
lamp
305 Function Page
8 Fuel filler flap
indicator: The fuel filler flap
is located on the rear right-
hand side.
G
Multifunction display with:
Outside temperature
indicator or digital
speedometer (depending
on selected setting in the
control system)
127
Transmission position
indicator
118
Gear range indicator 120
Automatic transmission
program mode indicator
120
Distance warning function
indicator 138,
152 Rear window wiper
indicator
105Instrument cluster
29At a glance
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Vehicle equipment
i This Operator’s Manual describes all
features, standard or optional, potentially
available for your vehicle at the time of
purchase. Please be aware that your
vehicle might not be equipped with all
features described in this manual. Occupant safety
Introduction
In this section you will learn the most
important facts about the restraint system
components of the vehicle.
The restraint systems are:
R Seat belts
R Child restraints
R Lower Anchors and Tethers for CHildren
(LATCH)
Additional
protection potential is provided by:
R Supplemental Restraint System (SRS) with
- Air bags
- Air bag control unit (with crash sensors)
- Emergency Tensioning Device (ETD) for
seat belts
- Seat belt force limiter
R NECK-PRO active front head restraints
R Preventive occupant safety (PRE-SAFE ®
)
R Air bag system components with
-Front passenger front air bag off
indicator lamp
- USA only: Front passenger seat with Occupant Classification System (OCS)
- Canada only: Front passenger seat with
BabySmart™

air bag deactivation system
Although the systems are independent, their
protective functions work in conjunction with
each other. G
Warning!
Modifications to or work improperly
conducted on restraint system components
or their wiring, as well as tampering with
interconnected electronic systems, can lead
to

the restraint systems no longer functioning
as intended.
Air bags or Emergency Tensioning Devices
(ETDs), for example, could deploy
inadvertently or fail to deploy in accidents
although the deceleration threshold for air
bag deployment is exceeded. Therefore,
never modify the restraint systems. Do not
tamper with electronic components or their
software.
i See “Children in the vehicle”
(Y page 55) for information on
R infants and children traveling with you in
the vehicle
R restraint systems for infants and children SRS indicator lamp
The SRS system conducts a self-test when
the ignition is switched on and in regular
intervals while the engine is running. This
facilitates detection of system malfunctions.
The SRS indicator lamp + in the
instrument cluster comes on when the
ignition is switched on. It goes out no later
than

a few seconds after the engine has been
started.
The SRS components are in operational
readiness when the SRS indicator lamp
+ is not lit while the engine is running.
A malfunction in the system has been
detected if the SRS indicator lamp +
R fails to go out after approximately
4 seconds after the engine was started
R does not come on at all
R comes on after the engine was started or
while driving 36
Occupant safety
Safety and security
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completely eliminate this risk is to never
place a child in a rear-facing child restraint
in the front seat. We therefore strongly
recommend that you always place a child
in a rear-facing child restraint in a backseat.
R If you must install a rear-facing child
restraint on the front passenger seat
because circumstances require you to do
so, make sure the 42
indicator lamp is illuminated, indicating
that the front passenger front air bag is
deactivated. Should the 42
indicator lamp not illuminate or go out while
the restraint is installed, please check
installation. Periodically check the
42 indicator lamp while
driving to make sure the 42
indicator lamp is illuminated. If the
42 indicator lamp goes out or
remains out, do not transport a child on the
front passenger seat until the system has
been repaired.
A child in a rear-facing child restraint on the
front passenger seat will be seriously
injured or even killed if the front passenger
front air bag inflates.
R If you have to place a child in a forward-
facing child restraint on the front passenger
seat, move the seat as far back as possible,
use the proper child restraint
recommended for the age, size and weight
of the child, and secure child restraint with
the vehicle’s seat belt according to the child
seat manufacturer’s instructions. For
children larger than the typical 12-month-
old child, the front passenger front air bag
may or may not be activated.
Deployment of the driver front air bag does
not mean that the front passenger front air
bag also should have deployed.
The OCS may have determined
R that the seat was empty or occupied by the
weight up to or less than that of a typical
12-month-old child seated in a standard
child restraint – both of which are instances where the system suppresses deployment
of the front passenger front air bag even
though the impact met the criteria and was
of sufficient severity to deploy the driver
front air bag
R that the seat was occupied by a small
individual (such as a young teenager or a
small adult) or a child who weighs more
than the weight of a typical 12-month-old
child in a standard child restraint – both of
which are instances where the system may
suppress deployment of the front
passenger front air bag even though the
impact met the criteria and was of
sufficient severity to deploy the driver front
air bag The
42 indicator lamp : will be
illuminated, except with the SmartKey
removed from the starter switch or with the
starter switch in position 0. G
Warning!
If the red SRS indicator lamp + in the
instrument cluster and the 42
indicator lamp are lit at the same time, there
is a malfunction in the OCS. The front
passenger front air bag will be deactivated in
this case. Have the system checked as soon
as possible by qualified technicians. Contact
an authorized Mercedes-Benz Center.
Only have the seat repaired or replaced at an
authorized Mercedes-Benz Center. 44
Occupant safetySafety and security
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