lock MERCEDES-BENZ R320 2008 W251 Owner's Manual

Contents
Introduction.......................................... 9
Product information ................................ 9
Operator’s Manual ............................... 10
Service and warranty information .. 10
Important notice for California
retail buyers and lessees of
Mercedes-Benz automobiles .......... 11
Maintenance .................................. 12
Roadside Assistance ...................... 12
Change of address or ownership.... 13
Operating your vehicle outside
the USA or Canada......................... 13
Where to find it .................................... 14
Symbols ............................................... 15
Operating safety .................................. 16
Proper use of the vehicle ............... 16
Problems with your vehicle .................. 17
Reporting safety defects...................... 18
Reporting safety defects ................ 18
Vehicle data recording ......................... 19
Information regarding electronic
recording devices ........................... 19At a glance.......................................... 21
Exterior view ......................................... 22
Cockpit ................................................. 24
Instrument cluster ................................ 26
Multifunction steering wheel ................ 30
Center console ..................................... 31
Upper part ...................................... 31
Lower part ...................................... 32
Overhead control panel ........................ 33
Storage compartments ......................... 34
Door control panel................................ 36Getting started................................... 37
Unlocking ............................................. 38
Unlocking with the SmartKey ......... 38
Unlocking with KEYLESS-GO*......... 39
Starter switch positions .................. 39
Adjusting .............................................. 43
Seats .............................................. 43
Steering wheel ................................ 46
Mirrors ............................................ 48
Driving .................................................. 50
Fastening the seat belts ................. 50
Starting the engine ......................... 53
Parking brake ................................. 56
Driving off ....................................... 56
Switching on headlamps ................. 58
Turn signals .................................... 59
Windshield wipers ........................... 59
Rear window wiper/washer ............ 61
Problems while driving.................... 62
Parking and locking .............................. 64
Parking brake ................................. 65
Switching off headlamps................. 65
Turning off the engine..................... 66
Releasing seat belts........................ 67
Locking ........................................... 67

Contents
Safety and Security.......................... 69
Occupant safety................................... 70
Air bags .......................................... 72
Occupant Classification System ..... 77
Seat belts ....................................... 82
Active head restraints .................... 86
Rear head restraints ....................... 87
Children in the vehicle .................... 87
Blocking of rear door window
operation ........................................ 97
Panic alarm .......................................... 98
Activating ....................................... 98
Deactivating ................................... 98
Driving safety systems ......................... 99
ABS ................................................ 99
BAS .............................................. 101
ESP
®............................................. 101
EBP............................................... 105
Anti-theft systems.............................. 106
Immobilizer................................... 106
Anti-theft alarm system ................ 106
Controls in detail............................. 109
Locking and unlocking ....................... 110
SmartKey ..................................... 110
SmartKey with KEYLESS-GO* ...... 113
Checking the batteries in the
SmartKey or SmartKey with
KEYLESS-GO* .............................. 118
Loss of the SmartKey or
SmartKey with KEYLESS-GO* ...... 118
Opening the doors from the inside 118
Tailgate/Power tailgate*.............. 119
Automatic central locking ............ 126
Locking and unlocking from
the inside ..................................... 126
Seats ................................................. 128
Easy-entry/exit feature ................ 128
Lumbar support............................ 132
Multicontour seat* ....................... 132
Front seat active head restraints . 133
Rear seats .................................... 133
Seat heating* ............................... 139
Seat ventilation* (Canada only) ... 140Memory function* ............................. 141
Storing positions into memory ..... 142
Recalling positions from memory. 142
Lighting ............................................. 143
Exterior lamp switch .................... 143
Combination switch ..................... 147
Corner-illuminating front
fog lamps* ................................... 148
Hazard warning flasher ................ 150
Interior lighting ............................ 150
Door entry lamps ......................... 153
Cargo compartment lamp ............ 153
Instrument cluster ............................. 154
Adjusting instrument cluster
illumination .................................. 154
Resetting trip odometer ............... 155
Tachometer.................................. 155
Outside temperature indicator ..... 155

Contents
Oxidation catalyst
(diesel engine).............................. 349
Emission control .......................... 350
Coolant temperature .................... 350
At the gas station .............................. 352
Refueling ...................................... 352
Check regularly and before a
long trip........................................ 354
Engine compartment ......................... 356
Hood ............................................ 356
Engine oil ..................................... 358
Transmission fluid level ................ 360
Coolant level ................................ 360
Windshield/rear window washer
system and headlamp cleaning
system* ....................................... 362
Tires and wheels ................................ 363
Important guidelines .................... 363
Tire care and maintenance........... 364
Direction of rotation ..................... 365
Loading the vehicle ...................... 366
Recommended tire inflation
pressure ....................................... 371
Checking tire inflation pressure ... 373
Tire labeling.................................. 384
Load identification ....................... 388DOT, Tire Identification Number
(TIN) .............................................. 388
Maximum tire load ........................ 390
Maximum tire inflation pressure ... 390
Uniform Tire Quality Grading
Standards (U.S. vehicles) .............. 391
Tire ply material ............................ 393
Tire and loading terminology......... 393
Rotating tires ................................ 396
Winter driving ..................................... 398
Winter tires ................................... 398
Snow chains.................................. 399
Maintenance....................................... 400
Maintenance service indicator
message ....................................... 400
Calling up the maintenance
service indicator display ............... 402
Resetting the maintenance
service indicator ........................... 402
Vehicle care........................................ 403
Cleaning and care of the vehicle ... 403
Practical hints.................................. 413
What to do if … ................................... 414
Lamps in instrument cluster ......... 414
Lamp in center console ................ 425
Vehicle status messages in the
multifunction display .................... 427
Where will I find ...? ............................ 467
First aid kit.................................... 467
Vehicle tool kit.............................. 467
Spare wheel .................................. 471
Unlocking / locking in an emergency .. 474
Unlocking the vehicle ................... 474
Locking the vehicle ....................... 475
Fuel filler flap ................................ 475
Resetting activated head restraints.... 477
Vehicles without Rear Seat
Entertainment Package................. 477
Vehicles with Rear Seat
Entertainment Package*............... 478
Replacing SmartKey batteries ............ 479
Replacing bulbs .................................. 480
Bulbs............................................. 480
Replacing bulbs for front lamps .... 483
Replacing bulbs for rear lamps ..... 487

23 At a glance
Exterior view
ItemPage
1Tailgate119
Power tailgate*119
Cargo compartment

Loading instructions

Cargo tie-down rings

Hooks

Expanding

Cover blind

Cargo net*
289
290
291
292
299
301
Vehicle tool kit467
Spare wheel471
2Rear window defroster207
3Rear lamps481
4Fuel filler flap352
Refueling352
Fuel353,
540
ItemPage
5Exterior rear view mirrors
Adjusting48
Auto-dimming rear view
mirrors*203
Power folding*204
6Towing eye bolt467
Installing towing eye bolt515
7Tires and wheels363,
529
Checking tire inflation
pressure373
General information363
Flat tire492
Spare wheel471
8Hood
Opening356
Engine oil358
Coolant360
ItemPage
9Windshield wipers59
Wiper blades, replacing489
Wiper blades, cleaning409
aWindshield
Cleaning with wiper fluid61
Cleaning409
bPower tilt/sliding sunroof*248
Panorama roof with power
tilt/sliding panel*252
cDoors
Locking and unlocking110
Opening and closing118
Locking/unlocking in an
emergency474
dFront lamps480
eHeadlamp cleaning system*203

25 At a glance
Cockpit
ItemPage
1Cruise control lever258
2Instrument cluster26
3Multifunction steering
wheel30
4Horn
5Steering wheel gearshift
buttons201
6Gear selector lever for
automatic transmission53
7Front Parktronic* warning
indicators283
8Overhead control panel33
9Glove box release
Glove box lock304
305
ItemPage
aGlove box
CD changer*
AUX-socket304
304
304
bCenter console31
cPower outlet314
dStarter switch39
eSteering wheel adjustment,
manual46
fSteering wheel adjustment,
electrical*47
Heated steering wheel*318
gHood lock release356
hParking brake release56
ItemPage
jParking brake pedal65
kDoor control panel36
lExterior lamp switch143
mCombination switch

High beam58

Turn signals59

Windshield wipers59

Rear window wiper61

27 At a glance
Instrument cluster
ItemPage
1LLeft turn signal
indicator lamp
2To dim instrument cluster
illumination154
3Reset button for:

Resetting trip odometer

Resetting all settings
155
171
4To brighten instrument
cluster illumination154
5KRight turn signal
indicator lamp
6Clock176
ItemPage
7Speedometer with:
-Antilock Brake
System (ABS)
indicator lamp414
’Variable speed limiter
indicator lamp1
lDistance warning
lamp2262,
414
1Lamp without function. It illuminates when the
ignition is on. It should go out when the engine is
running.
2Vehicles without Distronic*: Warning lamp without
function. It illuminates when the ignition is on.
It should go out when the engine is running.
ItemPage
;Brake warning lamp,
USA only415
3Brake warning lamp,
Canada only415
vElectronic Stability
Program (ESP®)
warning lamp
419
HCombination low tire
pressure/TPMS
malfunction telltale,
USA only422
Low tire pressure
telltale*, Canada only422

36 At a glance
Door control panel
ItemPage
1Inside door handle118
2Central locking/unlocking
switch127
3Exterior rear view mirror
adjustment48
4Selection buttons for
exterior rear view mirror
adjustment
Power-folding exterior rear
view mirrors*48
204
5Switches for
opening/closing front and
rear door windows242
6Rear door window override
switch97
7Hinged quarter window
switches*243
8Remote tailgate release
switch, power tailgate*122,
123

37 Getting started
Unlocking
Adjusting
Driving
Parking and locking

38 Getting started
The “Getting started” section provides an
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners
should pay special attention to the infor-
mation given here.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section will provide you with further
information. The corresponding page
references are located at the end of each
segment.
Unlocking
Unlocking with the SmartKey
SmartKey
1‹Lock button
2ŠUnlock button* for tailgate
3ŒUnlock button
4ÂPanic button (
page 98)
Press buttonΠon the SmartKey.
All turn signal lamps flash once. The
vehicle unlocks. The locking knobs in
the doors move up. The anti-theft alarm
system is disarmed. The locator light-
ing comes on if the feature is enabled
in the control system (
page 178).
Enter the vehicle and insert the
SmartKey in the starter switch.
For more information, see “Locking and
unlocking” (
page 110).
Warning!G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle.
A child’s unsupervised access to a vehicle
could result in an accident and/or serious
personal injury.

39 Getting started
Unlocking
Unlocking with KEYLESS-GO*
With the KEYLESS-GO function, you can
lock or unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without
inserting the SmartKey into the starter
switch.Grasp an outside door handle.
All turn signal lamps flash once. The
vehicle unlocks. The locking knobs in
the doors move up. The anti-theft alarm
system is disarmed. The locator light-
ing comes on if the feature is enabled
in the control system (
page 178).
Enter the vehicle.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 113).
Starter switch positions
iTo unlock the vehicle, the SmartKey with
KEYLESS-GO must be outside the vehicle, no
further than approximately 3 feet (1 meter) away
from the respective door.
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you, and
lock the vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
i If the vehicle has been parked for more than
72 hours, you must pull an outside door handle
in order to activate the KEYLESS-GO function.
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you and
lock the vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.