seat memory 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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Loading
see Vehicle loading
Locator lighting ................................. 135
Lock button
Outside door handle (KEYLESS-
GO) .................................................. 73
Locking the vehicle
KEYLESS-GO .................................... 71
Manually ........................................ 309
SmartKey ......................................... 70
Loss of
Key .................................................. 73
Service and Warranty Information
booklet .......................................... 344
Low-beam headlamps ......................... 98
Exterior lamp switch ........................ 97
Switching on .................................... 98
Lubricants .......................................... 350
Lumbar support ................................... 86M
Maintenance ........................................ 21
Maintenance System Service indicator display

................262
Service indicator message ............. 261
Service term exceeded ..................261
Manual headlamp mode (Low-
beam headlamps) ................................ 98
Maximum engine speed see Vehicle specification
Maximum loaded vehicle weight .....250
Maximum load rating (tires) .............249
Maximum permissible tire
inflation pressure .............................. 250
Mechanical key .................................. 308
Media interface ................................. 198
Memory function ................................. 96
Menus see Control system menus
Mirrors .................................................. 93
Auto-dimming rear view mirrors ....... 94
Exterior rear view mirror parking
position ............................................ 95
Exterior rear view mirrors ................ 94
Interior rear view mirror ................... 94
Memory function .............................. 96
Vanity mirror .................................. 203MOExtended system .........................
330
MOExtended tires ..................... 330, 347
MON (Motor Octane Number) ..........353
Motor Octane Number see MON


Multicontour seat ................................ 90
Multifunction display ........................ 125
Symbol messages .......................... 285
Text messages ............................... 275
Vehicle status messages ............... 274
Multifunction display messages
ABS ....................................... 275, 286
Active headlamps .......................... 295
Advanced TPMS ..................... 283, 298
Air bags ......................................... 277
Air filter .......................................... 294
AIRMATIC ...................................... 287
Alternator .............................. 282, 292
Automatic
transmission .................................. 282
Battery ................................... 282, 292
Brake fluid ..................................... 286
Brake pads ..................................... 285
Coolant .......................................... 290
Corner-illuminating front fog
lamps ............................................. 297
Cruise control ................................ 280
Distronic ........................................ 280
Doors ............................................. 289
EBP ................................................ 286
Engine oil ....................................... 293
ESP ®
...................................... 275, 286
Fog lamps .............................. 295, 296
Front passenger front air bag ........277
Gas cap .......................................... 294
High-beam lamps ........................... 296
Hood .............................................. 288
License plate lamps ....................... 296
Light sensor ................................... 296
Low-beam lamps ............................ 296
Parking brake ................................ 286
Parking lamps ................................ 296
PRE-SAFE ®
.................................... 276
Reserve fuel ................................... 293
Reverse lamp ................................. 295
Side marker lamps .........................295
SmartKey ....................................... 28912
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SmartKey with KEYLESS-GO
..........289
SRS ................................................ 287
Tailgate
.......................................... 288
Tail lamps ...................................... 297
Tele Aid .......................................... 287
Tire inflation pressure ............283, 298
Tire pressure monitor .................... 283
Tires ...................................... 283, 298
Trailer brake lamps ........................297
Trailer tail lamps ............................ 297
Trailer turn signal lamps ................297
Turn signals ................................... 298
Washer fluid ................................... 290
Multifunction steering wheel
Adjustment ...................................... 91
Buttons .......................................... 123
Cleaning ......................................... 267
Easy-entry/exit feature ...........92, 137
Gearshift control ............................ 121
Heating ............................................ 93
Memory function .............................. 96
Overview .......................................... 30N
Navigation menu ............................... 129
Navigation system see Separate operating instructions


NECK-PRO active front head
restraints ............................................. 53
Resetting ....................................... 310
Nets, parcel ....................................... 188
Night security illumination .............. 135
Normal occupant weight .................. 250
Number, vehicle identification
(VIN) ................................................... 345O
Occupant Classification System see

OCS (Occupant Classification
System)
Occupant distribution ....................... 250
Occupant safety Air bags ........................................... 37
BabySmart™ .................................... 45
Children and air bags ....................... 37
Children in the vehicle .....................55Child seat anchors – LATCH-type
....60
Fastening the seat belts ...................
49
Front passenger front air bag off
indicator lamp (Canada
only) ........................................ 45, 307
Front passenger front air bag off
indicator lamp (USA only) ........42, 307
Infant and child restraint systems .... 55
Introduction ..................................... 36
OCS (Occupant Classification
System) ........................................... 42
PRE-SAFE ®
....................................... 52
Seat belts .................................. 39, 47
OCS (Occupant Classification
System) ................................................ 42
Self-test ........................................... 45
Odometer ........................................... 125
Oil, oil level see Engine oil
On-board computer
see Control system
One-touch gearshifting .....................120
Operating safety .................................. 22
Ornamental moldings, cleaning .......265
Outside temperature see Displays
Overhead control panel ......................32 P
Paintwork, cleaning ..........................264
Paintwork code ................................. 345
Panic alarm .......................................... 62
Panorama roof with power tilt/
sliding panel ...................................... 184
Cleaning .........................................

266
Operation ....................................... 184
Roller sunblinds ............................. 184
Synchronizing ................................ 186
Parcel nets ......................................... 188
Parking ............................................... 114
Parktronic system ..........................156
Parking brake ............................ 114, 255
Messages in the multifunction
display ........................................... 286
Parking position
Exterior rear view mirrors ................ 95
Transmission position .................... 118 Index
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Reminder, Seat belt
see Seat belts, Telltale
Remote control
see Key, SmartKey
Remote door unlock (Tele Aid) .........212
Replacing bulbs ................................. 312
Reporting safety defects .................... 23
Research Octane Number see RON
Reserve fuel
Messages in the multifunction
display ........................................... 293
Warning lamp ................................... 29
Reset button ................................ 28, 122
Reset tool (NECK-PRO active front
head restraints) ................................. 310
Restraint systems see Occupant safety
Rims ........................................... 250, 347
Roadside Assistance ...................21, 210
Roller sunblinds ................................. 184
RON (Research Octane Number) ..... 353
Roof rack ............................................ 187
Rubber parts, cleaning ...................... 267
Run-flat tires see MOExtended tires S
Safety Driving safety systems ..................... 63
Occupant safety ...............................

36
Reporting defects ............................ 23
Safety belts
see Seat belts
Seat belt force limiter ......................... 52
Seat belts ............................................. 47
Adjustment function ........................51
Children in the vehicle .....................55
Cleaning ......................................... 267
Fastening ......................................... 49
Height adjustment ...........................50
Proper use of ................................... 48
Safety guidelines ............................. 39
Safety notes ..................................... 47
Telltale ..................................... 29, 302
Seat heating ......................................... 91
Seating capacity ................................ 237Seats .....................................................

81
Adjustment ...................................... 81
Easy-entry/exit feature ....................92
Folding (expanding cargo volume) . 189
Heating ............................................ 91
Memory function .............................. 96
Multicontour seat ............................ 90
Rear seats ........................................ 86
Ventilation ....................................... 90
Securing cargo
Cargo tie-down rings ...................... 188
Selective setting
see Key, SmartKey
Selector lever
see Gear selector lever
Self-test
BabySmart™ .................................... 47
OCS (Occupant Classification
System) ........................................... 45
Tele Aid .......................................... 208
Service
see Maintenance
Service, parts .................................... 344
Service and warranty information .....20
Service intervals see Maintenance System, Service
indicator message
Service life (tires) .............................. 241
Settings Factory setting (KEYLESS-GO) ......... 72
Factory setting (SmartKey) ..............71
Memory function .............................. 96
Menu ............................................. 130
Selective setting (KEYLESS-GO) ....... 73
Selective setting (SmartKey) ............71
Side impact air bags ...........................40
Side marker lamps
Cleaning lenses ............................. 265
Messages in the multifunction
display ........................................... 295
Sidewall (tires) .................................. 250
Side windows see Power windows
SmartKey
see Key, SmartKey
SmartKey with KEYLESS-GO
see Key, SmartKey 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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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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R
Adjust the seat cushion so that the front
edge of the seat cushion lightly supports
your legs.
R Adjust the head restraint so that it is as
close to the head as possible and the
center of the head restraint supports the
back of the head at eye level.
R Never place hands under the seat or near
any moving parts while the seat is being
adjusted. Children in the vehicle
Safety notes If an infant or child is traveling with you in the
vehicle:
X
Secure the child using an infant or child
restraint
appropriate to the age and size of
the child.
X Make sure the infant or child is properly
secured at all times while the vehicle is in
motion. G
Warning!
When leaving the vehicle, always remove the
SmartKey from the starter switch. Always
take the SmartKey with you and lock the
vehicle. Do not leave children unattended in
the

vehicle, even if they are secured in a child
restraint system, 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. The children
could
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
starter switch or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system’s
metal parts, for example, could become very
hot, and the child could be burned by these
parts.
G
Warning!
Do not carry heavy or hard objects in the
passenger
or cargo compartment unless they
are firmly secured in place.
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident
Infant and child restraint systems G
Observe Safety notes, see page 55.
We recommend all infants and children be
properly restrained at all times while the
vehicle is in motion.
Canada only:
Only use a BabySmart™ compatible child
restraint for the front passenger seat in this
vehicle.
All

lap/shoulder belts except the driver’s seat
belt have special seat belt retractors for
secure fastening of child restraints.
To fasten a child restraint, follow the child
restraint manufacturer’s instructions for
mounting.
To activate the special seat belt retractor:
X Pull the shoulder belt out completely and
let it retract. Occupant safety
55
Safety and security
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Vehicle equipment ..............................
70
Locking and unlocking .......................70
Starter switch positions ..................... 79
Seats .................................................... 81
Multifunction steering wheel .............91
Mirrors ................................................. 93
Memory function ................................. 96
Lighting ................................................ 97
Wipers ................................................ 103
Power windows ................................. 106
Driving and parking .......................... 110
Automatic transmission ................... 115
Transfer case .................................... 122
Instrument cluster ............................122
Control system .................................. 123
Driving systems ................................ 142
Overview of climate control sys-
tem functions and air vents ............. 162
Climate control ................................. 164
3-zone automatic climate control ... 170
Rear window defroster ..................... 180
Power tilt/sliding sunroof ...............181
Panorama roof with power tilt/
sliding panel ...................................... 184
Loading and storing ..........................186
Useful features ................................. 201 69Controls in detail
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R
Adjust the head restraint so that it is as
close
to the head as possible. The center of
the head restraint must support the back of
the head at eye level.
R Never place hands under the seat or near
any moving parts while a seat is being
adjusted.
Failure to do so could result in an accident
and/or serious personal injury. G
Warning!
The power seats can be operated at any time.
Therefore, 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. G
Warning!
According to accident statistics, children are
safer when properly restrained in the rear
seating positions than in the front seating
position. Thus, we strongly recommend that
children

be placed in the rear seats whenever
possible. Regardless of seating position,
children 12 years old and under must be
seated and properly secured in an
appropriately sized infant restraint, toddler
restraint, or booster seat recommended for
the size and weight of the child. For additional
information, see “Children in the vehicle”.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint. G
Warning!
For your protection, drive only with properly
positioned head restraints.
Adjust

the head restraint so that it is as close
to the head as possible and the center of the
head restraint supports the back of the head
at eye level. This will reduce the potential for
injury to the head and neck in the event of an
accident or similar situation. Do not drive the vehicle without the seat head
restraints. Head restraints are intended to
help reduce injuries during an accident.
Seat adjustment
! When moving the seats, make sure there
are no items in the footwell or behind the
seats. Otherwise, you could damage the
seats and/or the items.
Power seats !
When the second-row seats are folded
forward, e.g. for cargo volume expansion,
the front seats may not be moved to the
rearmost position. Otherwise you could
damage the front and second-row seats.
! When

adjusting the seat backrest tilt and
head restraint height, make sure the sun
visor is folded up. If the head restraint is in
the uppermost position, it could hit and
damage the sun visor.
i Vehicles without memory function:
The seats can be adjusted within 5 minutes
after either front door has been opened.
The counter resets each time
R you open or close a front door
R you insert the SmartKey into the starter
switch
R you remove the SmartKey from the
starter switch
R you switch the ignition on or off
Just like in vehicles with memory function,
the power seats can be operated at any
time when the ignition is switched on.
i The memory function (Y page 96) lets
you store the settings for the seat position
together with the settings for the steering
wheel (electrical) and exterior rear view
mirrors. 82
Seats
Controls in detail
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X
Seat fore and aft adjustment: Press the
switch forward or backward in direction of
arrow A.
X Seat backrest tilt: Press the switch
forward or backward in direction of
arrow ?.
X Seat height: Press the switch up or down
in direction of arrow =.
X Seat cushion tilt: Press the switch up or
down in direction of arrow ; until your
upper legs are lightly supported.
X Head restraint height (vehicles with
memory function): Press the switch up or
down in direction of arrow :.
Head restraint height adjustment,
manual
This feature is only available in vehicles
without memory function. G
Warning!
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint so that it is as close
to the head as possible and the center of the
head restraint supports the back of the head
at eye level. This will reduce the potential for
injury to the head and neck in the event of an
accident or similar situation.
Do not drive the vehicle without the seat head
restraints. Head restraints are intended to
help reduce injuries during an accident.
With a third-row seat occupied, make sure to
move the respective head restraint up from the lowest non-use position and have the
occupant adjust the head restraint properly.
! Do not attempt to remove front seat head
restraints. They can only be removed by
qualified technicians. We recommend that
you have this work carried out by an
authorized Mercedes-Benz Center. X
Raising: Adjust the height of head
restraint : by pulling it upward.
If head restraint : is fully retracted, press
release button ; in direction of arrow and
pull head restraint : upward.
X Lowering: Press release button ; in
direction of arrow and press down on head
restraint :.
Head restraint fore and aft adjustment G
Warning!
Vehicles with Rear Seat Entertainment
Package: When adjusting the head restraint,
make sure your fingers do not become caught
between the head restraint cushion and the
monitor. Failing to do so may lead to injury. Seats
83Controls in detail
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