2010 MERCEDES-BENZ R320 warning

In case the central locking system does not
release the fuel filler flap, you can open it
manually.
The fuel filler flap release is located on the
passenger side in the cargo compartment
behind the cover.
X
Open the tailgate ( Y page 75).
X Open the cover on the passenger-side trim
panel ( Y page 317). X
Pull red fuel filler flap release : in
direction of arrow.
The fuel filler flap is unlocked.
X Open the fuel filler flap ( Y page 220).
X Close the cover.
X Close the tailgate. Resetting activated NECK-PRO active
front head restraints
If the NECK-PRO active front head restraints
have been triggered in a rear-end collision,
they must be reset.
You can tell that the NECK-PRO active front
head restraints have been triggered when
they have been moved forward and cannot be
adjusted. G
Warning!
For safety reasons, have the NECK-PRO active
front head restraints checked at an
authorized Mercedes-Benz Center after a
rear-end collision. G
Warning!
When pushing back the head restraint
cushion, make sure your fingers do not
become caught between the head restraint
cushion and the cover. Failing to do so may
lead to injury.
i Pressing the head restraint cushion back
requires high force. If you encounter
difficulties when pushing the head restraint
back, please have the procedure
performed at an authorized Mercedes-Benz
Center. X
Pull the top of the head restraint cushion in
direction of arrow : as far as it will go.
X Adjust the head restraint cushion
downward in direction of arrow ; as far as
it will go.
X Firmly press the top of the head restraint
cushion towards the head restraint cover in
direction of arrow = until it engages.
X Repeat this procedure on the NECK-PRO
active front head restraint for the second
front seat.
For information on NECK-PRO active front
head restraints, see “NECK-PRO active front
head restraints” ( Y page 53). Replacing SmartKey batteries
If the batteries in the SmartKey are
discharged, the vehicle can no longer be
locked or unlocked. It is recommended to 310
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have the batteries replaced at an authorized
Mercedes-Benz Center.
G
Warning!
Batteries contain poisonous and corrosive
substances. Therefore, keep the batteries out
of reach of children.
If a battery is swallowed, seek medical help
immediately. G
Warning!
SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Check with
your local government’s disposal guidelines.
California residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Batteries contain materials that can harm the
environment if disposed of improperly.
Recycling of batteries is the preferred method
of disposal. Many states (USA only) or
provinces (Canada only) require sellers of
batteries to accept old batteries for recycling.
When inserting the batteries, make sure they
are clean and free of lint.
When replacing batteries, always replace
both batteries.
i The required replacement batteries are
available at any authorized Mercedes-Benz
Center.
Replacement batteries: Lithium, type
CR 2025 or equivalent.
X Remove the mechanical key from the
SmartKey (Y page 308). SmartKey
X
Press mechanical key ; into the SmartKey
opening until battery compartment
cover : opens. Do not keep the cover
shut. X
Remove the battery compartment cover.
X Pat the SmartKey against the palm of your
hand until battery = falls out.
X Insert the new battery with the positive
terminal (+) facing up. Use a lint-free cloth.
X Insert the tabs of the battery compartment
cover into the housing and press the cover
closed.
X Slide mechanical key : back into the
SmartKey.
X Check the operation of the SmartKey. Replacing SmartKey batteries
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SmartKey with KEYLESS-GO
X
Insert mechanical key : into opening.
X Press mechanical key : in direction of
arrow.
Battery compartment ; is unlatched.
X Pull battery compartment ; out of the
SmartKey housing. X
Pull out batteries =.
X Insert new batteries = under contact
springs ? with the positive terminal (+)
side facing up.
X Return battery compartment ; into
SmartKey housing until it locks into place.
X Slide mechanical key : back into the
SmartKey.
X Check the operation of the SmartKey as
well as the KEYLESS-GO function. Replacing bulbs
Safety notes
Safe vehicle operation depends on proper
exterior lighting and signaling to a large
degree.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. Contact an
authorized Mercedes-Benz Center for
headlamp adjustment. G
Warning!
Bulbs and bulb sockets can be very hot. Allow
the lamp to cool down before changing a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas. A
bulb can explode if you
R touch or move it when hot
R drop the bulb
R scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
i Since replacing bulbs is a technically
highly demanding process, we recommend
to have them replaced at an authorized
Mercedes-Benz Center.
i If the headlamps or front fog lamps are
fogged up on the inside as a result of high
humidity, driving the vehicle a distance with
the lights on should clear up the fogging. 312
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Example illustration: Passenger side headlamp
:
Housing cover for low-beam and high-
beam halogen or Bi-Xenon headlamp G
Warning!
Do not remove the cover for the Bi-Xenon
headlamp. Because of high voltage in Xenon
lamps, it is dangerous to replace the bulb or
repair the lamp and its components. It is
recommended to have such work done by a
qualified technician. ;
Bulb socket for front turn signal lamp bulb ;
Bulb socket for front turn signal lamp bulb
= Bulb socket for low-beam headlamp bulb
(halogen headlamps only)
? Bulb socket for high-beam headlamp/
high-beam flasher bulb
Low-beam bulb (halogen headlamps
only) X
Turn housing cover : counterclockwise
and remove it.
X Turn bulb socket = with the bulb
counterclockwise and remove it.
X Pull the bulb out of bulb socket =.
X Gently press the new bulb into bulb socket
=.
X Place bulb socket = back into the housing
and turn it clockwise until it engages.
X Align housing cover : and turn it
clockwise until it engages.
High-beam and high-beam flasher bulb
(halogen headlamps only) X
Turn housing cover : counterclockwise
and remove it.
X Turn bulb socket ? with the bulb
counterclockwise and remove it.
X Pull the bulb out of bulb socket ?.
X Gently press the new bulb into bulb
socket ?. Replacing bulbs
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Opening the passenger-side trim panel
X
Insert a suitable object such as a coin into
the slot of lock :.
X Turn lock : by 90° in direction of the
arrow.
X Remove cover ;.
Replacing bulbs Example illustration: Rear lamp driver’s side
:
Tail lamp, side marker lamp, brake lamp,
parking and standing lamp bulb socket
; Backup lamp bulb socket
= Rear fog lamp bulb socket (driver’s side
only)
? Rear turn signal lamp bulb socket
X Depending on which bulb needs to be
replaced, turn the respective bulb socket
counterclockwise.
X Pull the bulb socket out of the housing.
X Gently press onto the bulb and turn it
counterclockwise out of its bulb socket. X
Gently press the new bulb into its bulb
socket and turn it clockwise until it
engages.
X Align the bulb socket and turn it clockwise.
X Make sure the bulb socket is attached
properly.
X Close the respective cover in the cargo
compartment.
X Close the tailgate.
License plate lamps X
Loosen screws : of lamp cover to be
removed.
X Remove lamp cover ;.
X Replace the bulb.
X Reinstall lamp cover ;.
X Retighten screws :. Replacing wiper blades
Safety notes
G
Warning!
For safety reasons, switch off the wipers and
remove the SmartKey from the starter switch
(vehicles with KEYLESS-GO: Make sure the
vehicle’s on-board electronics have status 0)
before replacing a wiper blade. Otherwise, the
wiper motor could suddenly turn on and cause
injury. Replacing wiper blades
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G
Warning!
Wiper blades are components that are subject
to wear and tear. Replace the wiper blades
twice a year, preferably in the spring and fall.
Otherwise the windows will not be wiped
properly. As a result, you may not be able to
observe surrounding traffic conditions and
could cause an accident.
! Never open the hood when a front wiper
arm is folded forward.
Hold on to the wiper when folding a wiper
arm back. If released, the force of the
impact from the tensioning spring could
crack the windshield or the rear window.
Do not allow a wiper arm to contact the
windshield glass or the rear window
without a wiper blade inserted.
Mercedes-Benz recommends that you have
this work carried out at an authorized
Mercedes-Benz Center.
X Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO:
X Make sure the vehicle’s on-board
electronics have status 0 (Y page 80). Removing wiper blades
Front wiper blades !
Do not pull on the wiper blade inserts.
They could tear.
X Fold the wiper arms forward until they
engage. X
Press tabs ; together.
X Tilt wiper blade : away from wiper arm
=.
X Take off wiper blade : in direction of
arrow.
Rear wiper blade !
Do not pull on the wiper blade insert. It
could tear. X
Fold wiper arm : away from the rear
window until it engages.
X Turn wiper blade ; as far as it will go.
X Hold wiper arm : and disengage wiper
blade ; by carefully sliding it in direction
of arrow.
X Remove wiper blade ;.318
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Installing wiper blades
Front wiper blades X
With guide tab = sliding into opening ?,
place wiper blade : onto wiper arm in
direction of arrow.
X Fold wiper blade : towards wiper arm.
Tabs ; (Y page 318) must engage into
both recesses of attachment ;.
X Check whether the wiper blade is securely
fastened.
X Fold the wiper arm backward to rest on the
windshield.
Make sure you hold on to the wiper arm
when folding it back.
! Make sure the wiper blades are installed
properly. Improperly installed wiper blades
may cause windshield damage.
Rear wiper blade X
Insert wiper blade ; into wiper arm :.
X Hold wiper arm : and engage wiper
blade ; by pushing it in direction of arrow
until it locks into place.
X Check whether the wiper blade is securely
fastened.
X Fold wiper arm : to rest on the rear
window.
Make sure to hold on to the wiper when
folding the wiper arm back.
! Make sure the wiper blade is installed
properly. An improperly installed wiper
blade may cause rear window damage. Flat tire
Safety notes
Your vehicle may be equipped with an
MOExtended system or a spare wheel with
collapsible tire. Vehicles with an MOExtended
system do not have a spare wheel or a TIREFIT
kit.
For information on your vehicle’s equipment,
see “Rims and tires” ( Y page 347). G
Warning!
The dimensions of the spare wheel are
different from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style
accordingly.
The spare wheel is for temporary use only.
When driving with a spare wheel mounted,
ensure proper tire inflation pressure and do
not exceed a vehicle speed of 50 mph
(80 km/h).
Contact the nearest authorized Mercedes-
Benz Center as soon as possible to have the
spare wheel replaced with a regular road
wheel.
Never operate the vehicle with more than one
spare wheel mounted. Flat tire
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Do not switch off the ESP
®
when a spare
wheel is mounted. G
Warning!
Vehicles with AIRMATIC:
Do not open or close any doors or the tailgate
while mounting a spare wheel. The vehicle
could rise or lower to a previously selected
level. You or others could be injured as a
result. Preparing the vehicle
X Vehicles with AIRMATIC:
Make sure the vehicle level is set to
highway level

(Y page 153).
X Whenever possible, park the vehicle in a
safe

distance from moving traffic on a hard,
flat surface.
X Turn on the hazard warning flasher.
X Turn the steering wheel so that the front
wheels are in a straight-ahead position.
X Engage the parking brake.
X Shift the automatic transmission into park
position P.
X Turn off the engine.
X Remove the SmartKey from the starter
switch.
or
X Vehicles with KEYLESS-GO: Open the
driver’s

door (this puts the starter switch in
position 0, same as with the SmartKey
removed from the starter switch). The
driver’s door can then be closed again.
Open doors only when conditions are safe
to do so.
X Vehicles with KEYLESS-GO: Remove the
KEYLESS-GO start/stop button from the
starter switch.
X Have any passenger exit the vehicle at a
safe distance from the roadway. Open
doors only when conditions are safe to do
so.
i Vehicles retrofitted with TIREFIT kit: Only use the power outlet in the second-
row footwell for electric air pump
operation.
You can use the power outlet even when
the ignition is switched off, e.g. in order to
inflate the collapsible tire.
An emergency shut-off feature is designed
to prevent the vehicle’s on-board voltage
from dropping below a minimum level. If
the on-board voltage drops to this
minimum level, the power outlets are
switched

off automatically to help preserve
engine starting power. Sealing tires with TIREFIT
This section applies to vehicles retrofitted
with a TIREFIT kit only.
Small

tire punctures, particularly those in the
tread, can be sealed with TIREFIT.
TIREFIT can be used in ambient temperatures
down to -4‡ (-20†). G
Warning!
TIREFIT is a limited repair device. TIREFIT
cannot be used for cuts or punctures larger
than approximately 0.16 in (4 mm) and tire
damage

caused by driving with extremely low
tire inflation pressure, or on a flat tire, or a
damaged wheel.
Do not drive the vehicle under such
circumstances.
Contact the nearest authorized Mercedes-
Benz Center for assistance or call Roadside
Assistance.
X Foreign objects (e.g. screws or nails)
should not be removed from the tire.
X Take the TIREFIT kit, the sticker, and the
electric air pump out of the vehicle. 320
Flat tire
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