2010 MERCEDES-BENZ R320 height adjustment

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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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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thresholds and in certain rollovers (window
curtain air bags and ETDs).
R Never wear the shoulder belt under your
arm,
against your neck or off your shoulder.
In a frontal crash, your body would move
too far forward. That would increase the
chance of head and neck injuries. The seat
belt would also apply too much force to the
ribs or abdomen, which could severely
injure internal organs such as your liver or
spleen.
Adjust the seat belt so that the shoulder
section is located as close as possible to
the middle of the shoulder. It should not
touch the neck. Never pass the shoulder
portion of the seat belt under your arm. For
this purpose, you can adjust the height of
the seat belt outlet.
R Position the lap belt as low as possible on
your hips and not across the abdomen. If
the lap belt is positioned across your
abdomen, it could cause serious injuries in
a crash.
R Never wear seat belts over rigid or
breakable objects in or on your clothing,
such as eyeglasses, pens, keys etc., as
these might cause injuries.
R Make sure the seat belt is always fitted
snugly. Take special care of this when
wearing loose clothing.
R Never use a seat belt for more than one
person at a time. Do not fasten a seat belt
around a person and another person or
other objects at the same time.
R Seat belts should not be worn twisted. In a
crash, you would not have the full width of
the seat belt to distribute impact forces.
The twisted seat belt against your body
could cause injuries.
R Pregnant women should also always use a
lap/shoulder belt. The lap belt portion
should be positioned as low as possible on
the hips to avoid any possible pressure on
the abdomen. R
Place the seat backrest in a position that is
as upright as possible.
R Check your seat belt during travel to make
sure it is properly positioned.
R Never place your feet on the instrument
panel, dashboard, or on the seat. Always
keep both feet on the floor in front of the
seat.
R When using a seat belt to secure infant
restraints, toddler restraints, or children in
booster seats, always follow the child seat
manufacturer’s instructions. G
Warning!
Do not pass seat belts over sharp edges. They
could tear.
Do

not allow the seat belt to get caught in the
door or in the seat adjustment mechanism.
This could damage the seat belt.
Never attempt to make modifications to seat
belts. This could impair the effectiveness of
the seat belts.
Fastening the seat belts 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. Occupant safety
49
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G
Warning!
Vehicles with BabySmart™ air bag
deactivation system, Canada only: Children
12 years old and under must never ride in the
front seat, except in a Mercedes-Benz
authorized BabySmart™ compatible child
seat, which operates with the BabySmart™
system installed in the vehicle to deactivate
the front passenger front air bag when it is
installed properly. Otherwise they will be
struck by the air bag when it inflates in a
crash. If this happens, serious or fatal injury
will result. X
With a smooth motion, pull the seat belt out
of seat belt outlet :.
X Place the shoulder portion of the seat belt
across the top of your shoulder and the lap
portion across your hips.
X Push latch plate ; into buckle = until it
clicks.
Seat belt adjustment function: The seat
belts on both front seats adjust to the
upper body automatically as necessary
(Y page 51). X
If necessary, adjust the seat belt to the
correct height (Y page 50).
X If necessary, tighten the lap portion to a
snug fit by pulling shoulder portion up.
All lap/shoulder belts except the driver’s seat
belt have special seat belt retractors to
secure child restraints properly. For more
information on special seat belt retractors,
see “Infant and child restraint system”
(Y page 55).
To release the seat belt with seat belt release
button ?, see ( Y page 51).
Seat belt outlet height adjustment X
Raising: Slide seat belt outlet height
adjuster ; upward.
Seat belt outlet height adjuster ; engages
in various positions.
X Lowering: Press and hold release
button :.
X Slide seat belt outlet height adjuster ;
downward.
X Release button : and make sure seat belt
outlet height adjuster ; engages into
place. 50
Occupant safetySafety and security
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R
If the vehicle is in a critical dynamic driving
situation, the door windows close, except
for a minimal gap that remains open.
R Vehicles with power tilt/sliding sunroof: If
the vehicle is in a critical dynamic driving
situation, the tilt/sliding sunroof also
closes, except for a minimal gap that
remains open.
If the closing procedure of any of these
elements is blocked, it will stop and open
slightly.
Once the hazardous situation no longer exists
and an accident has been avoided, the seat
belt pre-tensioning is deactivated. All of the
PRE-SAFE ®
settings can be re-adjusted
following the critical driving event.
If the seat belts do not release:
X Adjust the seat backrest or seat slightly to
the rear until the seat belt tension is
reduced.
The locking mechanism releases.
! 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.
For information on the seat belt adjustment
function as an integrated comfort feature of
PRE-SAFE ®
, see ( Y page 51). NECK-PRO active front head
restraints
The NECK-PRO active front head restraints
are intended to offer the driver and front
passenger increased protection from
whiplash-type injuries. In the event of a rear-
end

collision, the NECK-PRO active front head
restraints on the front seats are designed to
move forward in the direction of travel. They
thus provide the head with increased support
earlier on in the collision sequence. The
NECK-PRO active front head restraints will
move forward whether the seats are occupied
or not. G
Warning!
Do not attach any objects (e.g. hangers) to the
head restraint posts. Otherwise, the NECK-
PRO active front head restraints may not be
able

to function properly or offer the intended
degree of protection they were designed for
in the event of a rear-end collision. G
Warning!
Only use seat or head restraint covers which
have
been tested and approved by Mercedes-
Benz for your vehicle model.
Using other seat or head restraint covers may
interfere with or prevent the activation of the
NECK-PRO active front head restraints and/
or the deployment of the front side impact air
bags.
Contact an authorized Mercedes-Benz Center
for availability.
When the NECK-PRO active front head
restraints have been triggered in an accident,
the NECK-PRO active front head restraints
must be reset. Otherwise, the NECK-PRO
active front head restraints cannot offer any
additional protection in the event of another
rear-end collision.
For information on resetting the activated
NECK-PRO active front head restraints, see
“Resetting activated head restraints”
(Y page 310).
You cannot remove the NECK-PRO active
front head restraints. 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.
For information on head restraint adjustment,
see “Head restraint height” ( Y page 83), or Occupant safety
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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
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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
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X
While seated, pull adjustment handle : in
direction of arrow and hold it there.
X To move seat backrest back, lean lightly
against backrest.
X To move seat backrest forward, lean
forward with adjustment handle : pulled.
The seat backrest will move forward
against your back.
X Release adjustment handle : when the
seat backrest has reached the desired
position.
X To make sure the seat backrest has
engaged, lean firmly against the backrest.
Head restraint height G
Warning!
With the second-row middle seat or 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.
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. Outboard second-row seat head restraint X
Raising: Manually adjust the height of head
restraint : by pulling it upward to the
desired position.
X Lowering: Push release button ; and
press down on head restraint :.
i The head restraint of the second-row
middle seat and the third-row seat head
restraints are adjusted in the same
manner.
i The tilt of the second-row head restraints
is adjusted in the same manner as the front-
seat head restraints, see “Head restraint
adjustment” (Y page 83).
The tilt of the head restraint of the second-
row middle seat and the third-row seat
head restraints cannot be adjusted.
Head restraints, removing and
installing G
Warning!
Do not drive the vehicle without the seat head
restraints installed when the rear seats are
occupied. Head restraints are intended to
help reduce injuries during an accident.
With the second-row middle seat or 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.
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint in such a way 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.
i When removing or installing the head
restraint of an outboard second-row seat,
adjust the seat to the rear as far as possible
(Y page 87) and fold the seat backrest
(Y page 84) forward. 88
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