2010 MERCEDES-BENZ R320 tow

Armrest, rear

Storage compartment .................... 199
Ashtrays ............................................. 204
Aspect ratio (tires) ............................ 249
Audio/DVD menu .............................. 128
Auto-dimming rear view mirrors ........ 94
Automatic central locking ..........74, 137
Automatic headlamp mode ................98
Automatic interior lighting control ..102
Automatic locking when driving ......137
Automatic shift program ..................120
Automatic transmission ................... 115
Automatic shift program ................120
Emergency operation (limp-home
mode) ............................................ 121
Gear range indicator ......................120
Gear ranges ................................... 119
Gear selector lever ........................116
Hill-start assist system .................. 153
Kickdown ....................................... 119
One-touch gearshifting ..................120
Program mode indicator ................120
Program mode selector switch
(automatic shift program) ..............120
Shifting procedure ......................... 118
Steering wheel gearshift control .... 121
Towing a trailer .............................. 119
Transmission position indicator ..... 118
Transmission positions .................. 118
AUX socket ........................................ 198
Axle oils .............................................. 351B
BabySmart™
Air bag deactivation system ............. 45
Self-test

........................................... 47
Backrest
see Seats
Backup lamps
Messages in the multifunction
display ........................................... 295
Bar (air pressure unit) ....................... 249
BAS (Brake Assist System) ................. 64
Batteries, SmartKey
Checking condition ..........................73
Replacing ....................................... 310Battery, Vehicle
................................. 333
Charging ........................................ 335
Jump starting ................................. 336
Messages in the multifunction
display

................................... 282, 292
Bead (tire) .......................................... 249
Beverage holders see Cup holders
Bleeding the fuel system (diesel
engine) ............................................... 331
BlueTEC
AdBlue ®
tank ................................. 331
AdBlue ®
tank capacity ................... 351
Brake fluid
Checking level ............................... 227
Messages in the multifunction
display ........................................... 286
Brake lamps
Cleaning lenses ............................. 265
Brake pads
Messages in the multifunction
display ........................................... 285
Brakes ................................................ 253
Parking brake ........................ 114, 255
Warning lamp ................................. 301
Break-in period .................................. 220
Bug cover (Radiator) ......................... 224
Bulbs see Replacing bulbs C
CAC (Customer Assistance Center) ...23
California retail buyers and
lessees, important notice for .............21
Calls (phone) ...................................... 140
Can holders see Cup holders


Capacities and recommended
fuel/lubricants .................................. 350
Cargo compartment
Cargo net ....................................... 196
Cargo volume, expanding ..............189
Cover blind .................................... 194
Fuse box ........................................ 342
Hooks ............................................ 189
Tie-down rings ............................... 188
Cargo compartment cover blind ...... 194 Index
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Driving off
.................................. 112, 255
Driving safety systems ....................... 63
4-ETS
............................................... 65
ABS .................................................. 63
BAS .................................................. 64
EBP .................................................. 64
ESP ®
................................................ 65
Driving systems
AIRMATIC ...................................... 153
All-wheel drive (4MATIC) ................ 156
Cruise control ................................ 142
Distronic ........................................ 145
Hill-start assist system .................. 153
Parktronic system ..........................156
Rear view camera .......................... 159
Driving tips, automatic
transmission ...................................... 119E
Easy-entry/exit feature .............. 92, 137
EBP (Electronic Brake
Proportioning) ......................................

64
Electrical system
Improper work on or
modifications ................................... 22
Power outlets ................................. 206
Electrical system (Technical data)
see Vehicle specification
Electronic Stability Program
see ESP ®

Electronic Traction System
see 4-ETS
Emergency, in case of
First aid kit ..................................... 270
Flat tire .......................................... 319
Hazard warning flasher ..................101
Roadside Assistance ................ 21, 210
Towing the vehicle .........................338
Emergency calls
Tele Aid .......................................... 209
Emergency engine shutdown ...........342
Emergency operations
Limp-home mode ........................... 121
Remote door unlock ...................... 212
Emergency Tensioning Device
see ETD Emission control
............................... 260
Information label ............................
345
System warranties ........................... 20
Engine
Break-in recommendations ............220
Cleaning ......................................... 264
Compartment ................................ 222
Malfunction indicator
lamp ........................................ 29, 305
Messages in the multifunction
display ........................................... 290
Number .......................................... 345
Starting .......................................... 110
Turning off ..................................... 114
Engine (Technical data)
see Vehicle specification
Engine compartment
Radiator ......................................... 224
Engine coolant
see Coolant
Engine oil
Adding ........................................... 225
Additives ........................................ 352
Checking level ............................... 224
Consumption ................................. 224
Messages in the multifunction
display ........................................... 293
Oil dipstick ..................................... 224
Recommended engine oils and oil
filter ............................................... 352
ESP ®
(Electronic Stability
Program) .............................................. 65
4-ETS ............................................... 65
Messages in the multifunction
display ................................... 275, 286
Trailer stabilization ........................... 66
Warning lamp ................................. 303
ETD (Emergency Tensioning
Device) ................................................. 52
Safety guidelines ............................. 39
Express operation
Panorama roof ............................... 184
Power windows .............................. 106
Tilt/sliding sunroof ........................181
Exterior lamp switch ........................... 97
Exterior rear view mirrors ..................94
Fold-in function .............................. 1388
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Telephone
............................................. 30
Answering/ending a call ................ 141
Hands-free microphone ...................33
Menu ............................................. 140
Operation ....................................... 140
Phone book .................................... 141
Redialing ........................................ 142
Temperature
Interior temperature ..............168, 176
Outside .................................. 127, 133
Tether anchorage points
see Children in the vehicle
Tie-down rings ................................... 188
Tightening torque Wheels ........................................... 330
Time setting ....................................... 133
TIN (Tire Identification Number) ...... 250
Tire and Loading Information
placard ............................................... 236
Tire and loading terminology ...........248
TIREFIT ............................................... 320
Tire Identification Number see TIN
Tire inflation pressure
Checking ........................................ 230
Important notes on ........................ 229
Label on the inside of fuel filler
flap ................................................ 230
Placard on driver’s door B-pillar ..... 236
Tire labeling ....................................... 244
Tire load rating .................................. 249
Tire ply composition and material
used .................................................... 250
Tire pressure loss warning system . 231
Tire repair kit see TIREFIT
Tires ........................................... 227, 347
Advanced Tire Pressure
Monitoring System (Advanced
TPMS) ............................................ 232
Air pressure ................................... 228
Care and maintenance ................... 241
Cleaning ......................................... 242
Direction of rotation, spinning .......240
Important notes on tire inflation
pressure ........................................ 229
Inflation pressure ........................... 230Information placard .......................
236
Inspection ...................................... 241
Labeling ......................................... 244
Load index ............................. 245, 249
Load rating .................................... 249
Messages in the multifunction
display
................................... 283, 298
MOExtended .................................. 347
Ply composition and material
used ............................................... 250
Problems under-/overinflation ...... 230
Retreads ........................................ 227
Rims and tires (technical data) ...... 347
Rotation ......................................... 243
Service life ..................................... 241
Sizes .............................................. 347
Snow chains .................................. 252
Speed rating .......................... 246, 250
Storing ........................................... 242
Temperature .......................... 229, 243
Terminology ................................... 248
TIREFIT (tire repair kit) ................... 320
Tire Identification Number ............. 250
Tire pressure loss warning system . 231
TPMS low tire pressure/
malfunction telltale ........................ 306
Traction ................................. 242, 250
Tread ............................................. 251
Tread depth ........................... 241, 251
Treadwear ...................................... 242
Treadwear indicators ............. 241, 251
Vehicle maximum load on ..............251
Wear pattern .................................. 243
Winter tires ............................ 251, 347
Tire speed rating .......................246, 250
Tongue Weight Rating see TWR
Top tether
see Children in the vehicle
Total load limit ................................... 250
Towing
Towing eye bolt .............................. 338
Trailer .................................... 119, 256
Vehicle ........................................... 338
Towing eye bolt ................................. 338
Traction ...................................... 242, 250
Trailer towing ............................ 119, 256
Coupling a trailer ........................... 257 Index
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Decoupling ..................................... 259
Electrical connections
.................... 256
Towing ........................................... 258
Trailer hitch ................................... 256
Weights and ratings ....................... 256
Transfer case ..................................... 122
Transmission see Automatic transmission
Transmission fluid level .................... 225
Transmission gear selector lever see Gear selector lever
Transmission positions ....................118
Traveling abroad ............................... 259
Tread (tires) ....................................... 251
Tread depth (tires) ....................241, 251
Treadwear .......................................... 242
Treadwear indicators (tires) .... 241, 251
Trip computer menu .........................139
Trip odometer, resetting ................... 123
Turning off the engine ......................114
Turn signals ....................................... 100
Cleaning lenses ............................. 265
Indicator lamps ................................ 28
Messages in the multifunction
display ........................................... 298
TWR (Tongue Weight Rating) ........... 251U
Uniform Tire Quality Grading
Standards .................................. 242, 251
Units Selecting digital speedometer
display mode

................................. 132
Selecting speedometer/
odometer display mode ................. 132
Unleaded gasoline, premium ........... 353
Unlocking the vehicle
KEYLESS-GO .................................... 71
Manually ........................................ 308
SmartKey ......................................... 70
Upholstery, cleaning .........................268
Useful features .................................. 201 V
Vehicle
Battery ........................................... 333
Care ............................................... 262
Control system .............................. 123
Identification Number (VIN) ........... 344
Locking/unlocking

........................... 70
Lowering (wheel change) ...............329
Modifications and alterations,
Operating safety .............................. 22
Towing ........................................... 338
Unlocking/locking manually .......... 308
Vehicle dimensions
see Vehicle specification
Vehicle Identification Number
(VIN) ................................................... 344
Vehicle jack see Jack
Vehicle level control
see AIRMATIC
Vehicle lighting .................................... 97
Vehicle loading
Cargo tie-down rings ...................... 188
Cargo volume, expanding ..............189
Instructions .................................... 186
Load limit ....................................... 237
Roof rack ....................................... 187
Terminology ................................... 248
Vehicle maximum load on the tire ... 251
Vehicle specification
R 350 ............................................. 346
R 350 BlueTEC ............................... 346
Vehicle status message memory .... 130
Vehicle tool kit .................................. 270
Vehicle washing see Vehicle care
Vehicle weights
see Vehicle specification W
Warning lamps see Lamps, Indicator and warning


Warning sounds
Distance warning function .............152
Distronic ........................................ 147
Driver’s or passenger’s seat belt ..... 5118
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Rhode Island, and Vermont Emission
Control System Warranty
1
R State Warranty Enforcement Laws (Lemon
Laws) Important notice for California retail
buyers
and lessees of Mercedes-Benz
automobiles
Under California law you may be entitled to a
replacement of your vehicle or a refund of the
purchase price or lease price, if after a
reasonable number of repair attempts
Mercedes-Benz USA, LLC and/or its
authorized repair or service facilities fail to fix
one or more substantial defects or
malfunctions in the vehicle that are covered
by its express warranty. During the period of
18 months from original delivery of the
vehicle or the accumulation of 18 000 miles
(approximately 29 000 km) on the odometer
of the vehicle, whichever occurs first, a
reasonable number of repair attempts is
presumed for a retail buyer or lessee if one or
more of the following occurs:
(1) the same substantial defect or malfunction results in a condition that is
likely to cause death or serious bodily
injury if the vehicle is driven, that defect
or

malfunction has been subject to repair
two or more times, and you have directly
notified Mercedes-Benz USA, LLC in
writing of the need for its repair,
(2) the same substantial defect or malfunction
of a less serious nature than
category (1) has been subject to repair
four or more times and you have directly
notified us in writing of the need for its
repair, or
(3) the vehicle is out of service by reason of repair
of the same or different substantial
defects or malfunctions for a cumulative
total of more than 30 calendar days. Written notification should not be sent to a
dealer, it should be addressed to
Mercedes-Benz USA, LLC
Customer Assistance Center
One Mercedes Drive
Montvale, NJ 07645-0350 Maintenance
The Maintenance Booklet describes all the
necessary maintenance work which should
be performed at regular intervals.
Always have the Maintenance Booklet with
you when you take the vehicle to an
authorized Mercedes-Benz Center for
service. The service advisor will record each
service in the booklet for you. Roadside Assistance
The Mercedes-Benz Roadside Assistance
Program provides factory-trained technical
help

in the event of a breakdown. Calls to the
toll-free Roadside Assistance number
1-800-FOR-MERCedes (in the USA)
1-800-387-0100 (in Canada)
will be answered by Mercedes-Benz
Customer Assistance Representatives
24 hours a day, 365 days a year.
Roadside Assistance will be provided in
accordance with standard program
guidelines which include providing service to
the vehicle up to a reasonable distance from
a paved roadway. We will make every effort
to assist in a breakdown situation, however,
the accessibility of your vehicle will be
determined by our authorized Mercedes-Benz
Center technician or the tow service provider
on a case-by-case basis and may be a factor
in our ability to respond.
Additional charges may be applicable for a
breakdown location determined not to be a
reasonably accessible roadside location as
1 Applicable to vehicles with gasoline engine only. Introduction
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determined by our authorized technician and
tow service provider.
For additional information refer to the
Mercedes-Benz Roadside Assistance
Program brochure (in the USA) or the
Roadside Assistance section of the Service
and Warranty Information Booklet (in
Canada) in your vehicle literature portfolio.
Change of address or ownership
If you change your address, be sure to send
in the “Change of Address Notice” found in
the Service and Warranty Information
Booklet, or simply call the Mercedes-Benz
Customer Assistance Center (in the USA) at
1-800-FOR-MERCedes, or Customer Service
(in Canada) at
1-800-387-0100. This will
assist us in contacting you in a timely manner
should the need arise.
If you sell your Mercedes, please leave all
literature with the vehicle to make it available
to the next operator.
If you bought this vehicle used, be sure to
send in the “Notice of Purchase of Used
Truck” found in the Service and Warranty
Information Booklet, or call the Mercedes-
Benz Customer Assistance Center (in the
USA) at 1-800-FOR-MERCedes, or Customer
Service (in Canada) at 1-800-387-0100. Operating your vehicle outside the
USA or Canada
If you plan to operate your vehicle in foreign
countries, please be aware that:
R Service

facilities or replacement parts may
not be readily available.
R Unleaded gasoline for vehicles with
catalytic converters may not be available;
the use of leaded fuels will damage the
catalysts.
R Gasoline may have a considerably lower
octane rating, and improper fuel can cause
engine damage. Operating safety
G
Warning!
Work improperly carried out on electronic
components and associated software could
cause

them to cease functioning. Because the
vehicle’s electronic components are
interconnected, any modifications made may
produce an undesired effect on other
systems. Electronic malfunctions could
seriously impair the operating safety of your
vehicle.
Contact an authorized Mercedes-Benz Center
for repairs or modifications to electronic
components.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore never
turn off the engine while driving. G
Warning!
Heavy blows against the vehicle underbody or
tires/wheels may cause serious damage and
impair the operating safety of your vehicle.
Such blows can be caused, for example, by
running over an obstacle, road debris or a
pothole. If you feel a sudden significant
vibration or ride disturbance, or you suspect
that damage to your vehicle as occurred:
R turn on your hazard warning flashers
R slow down carefully
R drive

with caution to an area which is a safe
distance from the road
Inspect the vehicle underbody and tires/
wheels for possible damage. If the vehicle
appears unsafe, have it towed to the nearest
authorized Mercedes-Benz Center or other
qualified maintenance or repair facility for
further inspection or repairs. 22
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Exterior view
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. Function Page
:
Rear lamps 312
;
Fuel filler flap 220
=
Exterior rear view mirrors 94
?
Power tilt/sliding sunroof 181
Panorama roof with power
tilt/sliding panel
184
A
Windshield:
Wiping with washer fluid 105
Cleaning 266
B
Doors:
Locking and unlocking 70
Locking and unlocking
manually
308
C
Wipers 103
Wiper blades, replacing 317 Function Page
Wiper blades, cleaning 266
D
Hood 222
E
Front lamps 312
F
Headlamp cleaning system 101
G
Front towing eye 338
H
Tires and wheels 227
Rims and tires 347
I
Rear towing eye 338
J
Rear window wiper/washer 105
Wiper blade, replacing 317
Wiper blade, cleaning 266
K
Tailgate 75
Power tailgate 76
L
Rear window defroster 18026
Exterior viewAt a glance
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Emergency Tensioning Device (ETD),
seat belt force limiter
The seat belts for the following seats are
equipped with ETDs and seat belt force
limiters:
R
front seats
R outboard second-row seats
R third-row seats
The ETDs are designed to activate in the
following cases:
R in frontal or rear-end impacts exceeding
the system’s preset deployment threshold
R in side impacts exceeding the system’s
preset deployment threshold on the far
side of the impact
R in certain vehicle rollovers
R if
the restraint systems are operational and
functioning correctly, see “SRS indicator
lamp” (Y page 36)
The ETDs for the front seats will only activate
if the front seat belts are fastened (latch plate
properly inserted into buckle).
The ETDs for the rear outer seats (second-row
seats) or rear seats (third-row seats) will
activate with or without the respective seat
belts fastened.
In an impact, the ETDs remove slack from the
seat belts in such a way that the seat belts fit
more snugly against the body. Seat belt force
limiters, when activated, are employed to
help reduce the peak force exerted by the
seat belts on occupants during a crash.
i The ETDs do not correct an incorrect seat
position or incorrectly worn seat belts.
The ETDs do not pull occupants back
toward the seat backrest. G
Warning!
Pyrotechnic ETDs that were activated must be
replaced.
For your safety, when disposing of the
pyrotechnic ETDs always follow our safety instructions. These are available at any
authorized Mercedes-Benz Center.
The PRE-SAFE
®
system has electrically
operated reversible pre-tensioners that do
not require replacement after activation. Preventive occupant safety (PRE-
SAFE
®
) G
Warning!
The PRE-SAFE ®

system is intended to reduce
the effects of an accident on vehicle
occupants who are wearing their seat belt
properly. Despite your vehicle being equipped
with the PRE-SAFE ®
system, the possibility of
personal injuries occurring as a result of an
accident cannot be eliminated. Therefore,
always drive carefully and adjust your driving
to the prevailing road, weather, and traffic
conditions.
The PRE-SAFE ®
system takes preventive
measures to better protect the occupants
from the possibility of personal injuries in the
following hazardous situations:
R emergency braking maneuvers with the
Brake Assist System (BAS) ( Y page 64)
activated
R critical dynamic driving situations, e.g.
when the vehicle has been caused to
understeer or oversteer because it has
exceeded its physical limitations or in case
of evasive steering maneuvers at speeds
above approximately 85 mph (140 km/h)
PRE-SAFE ®
takes the following measures
when it is activated:
R The front seat belts are pre-tensioned
automatically.
R Vehicles with front passenger seat memory
function: If the passenger seat is in an
unfavorable position, the seat will be
adjusted to a position that seeks to better
protect the occupant. 52
Occupant safety
Safety and security
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