2008 MERCEDES-BENZ R320 four wheel drive

382 Operation
Tires and wheels
If you want to set new reference values
manually:
Using the Tire and Loading Information
placard on the driver’s door B-pillar
(
page 366) or, if available, the sup-
plemental tire inflation pressure
information on the inside of the fuel
filler flap (
page 352), make sure the
tire inflation pressure of all four tires is
correct.
Press buttonè orÿ on the mul-
tifunction steering wheel repeatedly
until the standard display menu
appears in the multifunction display
(
page 164).
Press buttonj or krepeatedly
the current inflation pressures for each
tire appear in the display or the follow-
ing message appears in the display:
Tire pressure
displayed after
driving for
a few minutes
.
Press the reset button (page 154).
The following message will appear in
the multifunction display:
Restart tire
pressure monitor?
Warning!G
It is the driver’s responsibility to calibrate
the TPMS on the recommended cold infla-
tion pressure. Underinflated tires affect the
ability to steer or brake the vehicle. You
might lose control over the vehicle.
iRestart the TPMS after adjusting the tire in-
flation pressure to the inflation pressure recom-
mended for the vehicle operating condition. Tire
pressure should only be adjusted on cold tires.
Observe the recommended tire inflation pres-
sure on the Tire and Loading Information placard
on the driver’s door B-pillar (
page 366).
Some vehicles may have supplemental tire infla-
tion pressure information for driving at high
speeds (
page 372) or for vehicle loads less
than the maximum loaded vehicle condition
(
page 372). If such information is provided, it
can be found on the inside of the fuel filler flap.

529 Technical data
Rims and tires
Rims and tires
!Only use tires which have been tested and
approved by Mercedes-Benz. Tires approved by
Mercedes-Benz are developed to provide best
possible performance in conjunction with the
driving safety systems on your vehicle such as
ABS or ESP
®. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by finding the
following on the tire’s sidewall:

MO = Mercedes-Benz Original equipment
tires
Using tires other than those approved by
Mercedes-Benz may result in damage that is
not covered by the Mercedes-Benz Limited
Warranty.
!Using tires other than those approved by
Mercedes-Benz can have detrimental effects,
such as

poor handling characteristics

increased noise

increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle parts.
Damage to the tires or the vehicle may be the
result.
iFurther information on tires and rims is
available at any authorized Mercedes-Benz Light
Truck Center. A placard with the recommended
tire inflation pressures is located on the driver’s
door B-pillar (
page 366). Some vehicles may
have supplemental tire inflation pressure infor-
mation for driving at high speeds (
page 372)
or for vehicle loads less than the maximum
loaded vehicle condition (
page 372). If such
information is provided, it can be found on the
placard located on the inside of the fuel filler
flap.The tire inflation pressure should be checked
regularly and should only be adjusted on cold
tires. Follow tire manufacturer’s maintenance
recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your vehi-
cles with winter tires. Winter tires are not avail-
able as standard or optional factory equipment,
but can be purchased from an authorized
Mercedes-Benz Light Truck Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire
configuration on your vehicle (Appearance
Package, Sport Package etc.), equipping your
vehicle with winter tires approved for your
vehicle model may also require the purchase of
two or four wheel rims of the recommended size
for use with these winter tires. Contact an
authorized Mercedes-Benz Light Truck Center
for more information.

545 Index
A
ABS 99
Indicator lamp 414, 415
Messages in the multifunction
display 429
Accelerator position, automatic
transmission 197
Accessory weight 393
Accident 63
Active head restraint 86, 133, 477
Air bags 72
Children 73, 89
Front, Driver 75
Front, Passenger 75
Messages in the multifunction
display 438–441
Occupant Classification System
(OCS) 77
Safety guidelines 74
Side impact 76
Window curtain 76
Air conditioning, Cooling 219, 233
Air conditioning refrigerant 538Air conditioning system see
Climate control or Automatic climate
control (3-zone)*
Air distribution 213, 228
Air pressure see Tire inflation pressure
Air pressure, Tires 393
Air pump, Electric 499
Air recirculation mode 216, 231
Air vents, Front 208, 214, 222, 228
Air vents, Rear 220, 236, 239, 240
Air volume 214, 229
AIRMATIC* 276
Messages in the multifunction
display 464, 465
Alarm system see Anti-theft systems
Alignment bolt (vehicle tool kit) 467, 497
All-wheel drive see Permanent four-wheel
drive 281
Anticorrosion/antifreeze 541, 544
Antiglare, Interior rear view mirror 203
Antiglare, Auto-dimming rear view
mirrors* 203Anti-theft systems 106
Anti-theft alarm system 106
Immobilizer 106
Aquaplaning see Hydroplaning
Arm rests, Second-row 137
Armrest storage compartments
Front 306
Rear* 306
Telephone* tray 306
Ashtrays 311
Aspect ratio 393
ATF 360
AUDIO menu 165
CD operation 167
Radio operation 166
Satellite radio* operation 166
Audio search function 182
Auto-dimming*, Rear view mirrors 203
Automatic antiglare for rear view
mirrors* 203
Automatic central locking, Control
system 183

551 Index
Engine coolant see Coolant
Engine oil 358, 538
Adding 359, 538
Additives 538
Changing 359, 538
Checking level 358
Consumption 358
Filler neck 359
Recommended engine oils and
filters 538
ESP
®101
Messages in the multifunction
display 435–436
Warning lamp 27, 419
ETD 85
Safety guidelines 74
ETS/4-ETS 103
Extending cargo compartment 292
Exterior rear view mirrors 48, 203
Power folding* 204
Synchronizing 204F
Fastening the seat belts 50
Filler neck, Engine oil 359
First aid kit 467
Flat tire 492
Collapsible tire 471, 498, 532
Jacking up the vehicle 493
Lowering the vehicle 501
Mounting the spare wheel 498
Preparing the vehicle 493
Spare wheel 471, 498, 532
Floormats 335
Fluids
Automatic transmission
fluid 360, 536
Brake fluid 355, 536, 539
Capacities 536
Engine coolant 355, 360, 537, 541
Engine oil 358, 536, 538
Power steering fluid 536
Windshield washer and headlamp
cleaning* system 362, 538Fog lamp, Front see Corner-illuminating
front fog lamps*
Fog lamp, Rear 147
Messages in the multifunction
display 458
Replacing bulbs 480
Fog lamps 146
4MATIC see Permanent four-wheel
drive 281
Front air bags 75
Front defroster 214, 229
Front lamps see Headlamps
Front passenger front
air bag 75, 77, 82, 425
Front passenger front air bag
off indicator lamp 31, 75, 77, 82, 425
Front seat head restraints see
Head restraints
Front towing eye 515

558 Index
Odometer 155, 157
Oil level see Engine oil, Checking level
Oil see Engine oil
One-touch gearshifting 201
Operating safety 16
Operator’s Manual 10
Ornamental moldings, Cleaning 407
Outside temperature see Displays
Overdue maintenance service term 401
Overhead control panel 33
Oxidation catalyst (diesel engine) 349
P
Paintwork code 524
Paintwork, Cleaning 404
Panic alarm 98
Panorama roof with power tilt/sliding
panel* 252
Cleaning 410
Convenience closing feature 245
Opening/closing 253
Roller sunblinds 252
Stopping 253
Summer opening feature 244
Synchronizing 255Parcel nets 307
Parking 64, 343
Parking brake 56, 65
Lamps, Indicator and warning 415
Messages in the multifunction
display 446
Releasing 56
Parking lamps 481
Messages in the multifunction
display 458
Replacing bulbs 480
Parktronic* (Parking assist) 281
Cleaning system sensors 408
Minimum distance 283
Range 282
Sensor cover 408
Switching on/off 284
System malfunction 285
System sensors 282
Warning indicators 283
Parts service 522
PASS AIR BAG OFF indicator lamp see
Front passenger front air bag off
indicator lampPassenger compartment 347
Fuse box 520
Interior lighting 150
Passenger safety see Occupant safety
Pedals 339
Permanent four-wheel drive 281
Phone see Telephone*
Plastic and rubber parts, Cleaning 410
Poly-V-belt drive
Layout 526
Positions (Memory function*) see
Seats 142
Power assistance 340
Power outlets 314
Power seats see Seats
Power tilt/sliding sunroof* 248
Convenience closing feature 245
Opening/closing 248
Stopping 245
Summer opening feature 244
Synchronizing 250
Power washer 404