2010 MERCEDES-BENZ R320 lock

G
Warning!
If the 42 indicator lamp
illuminates and remains illuminated with the
weight of a typical adult or someone larger than a small individual on the front passenger
seat, do not have any passenger use the front
passenger seat until the system has been
repaired.
Problem
Possible causes/consequences and
X SolutionsUSA only:
42
The front passenger
front air bag off
indicator lamp does not
illuminate and/or does
not remain illuminated
with the weight of a
typical 12-month-old
child in a standard child
restraint or less on the
front passenger seat. The system is malfunctioning.
X
Make sure there is nothing between seat cushion and child seat
and check installation of the child seat.
X Make sure no objects applying supplemental weight onto the
seat are present.
X Make sure no objects which apply forces to the seat are present
(e.g. objects such as books, briefcases etc. lodged behind or
around the seat, head restraints pushing against roof etc.). The
system may recognize such forces as supplemental weight.
X If the front passenger front air bag off indicator lamp remains
out, have the system checked as soon as possible at an
authorized Mercedes-Benz Center. Do not transport a child on
the front passenger seat until the system has been repaired.
X Read and observe messages in the multifunction display and
follow corrective steps (Y page 274). G
Warning!
If the 42 indicator lamp does not
illuminate or remains out with the weight of a
typical 12-month-old child in a standard child
restraint or less on the front passenger seat,
do not transport a child on the front
passenger seat until the system has been
repaired. Unlocking/locking manually
Unlocking the vehicle
If you cannot unlock the vehicle with the
SmartKey or with KEYLESS-GO, unlock the
driver’s door using the mechanical key.
The anti-theft alarm system will trigger when
you
R unlocking the driver’s door with the
mechanical key and
R open the driver’s door
To cancel the alarm, insert the SmartKey into
the starter switch.
Removing the mechanical key SmartKey308
Unlocking/locking manuallyPractical hints
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SmartKey with KEYLESS-GO
X
Move locking tab : in the direction of
arrow.
X Slide mechanical key ; out of the housing.
Unlocking the driver’s door X
Insert mechanical key ; into the driver’s
door lock.
X Turn mechanical key ; counterclockwise
to position 1.
X Pull the door handle past the resistance
point until the locking knob moves up.
The driver’s door is unlocked.
X Pull the door handle once more to open the
driver’s door.
X Turn mechanical key ; back and remove
it from the driver’s door lock. Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or with KEYLESS-GO, lock it as
follows:
X Close the front passenger door, the right
rear door, and the tailgate.
X Open the driver’s door and the rear left
door.
X Press the central locking switch
(Y page 74).
The locking knobs of the front passenger
door and the rear doors move down.
X If the vehicle battery is disconnected or
drained: Press down the locking knobs on
the front passenger door and the rear
doors.
X Exit the vehicle.
X Close the driver’s door.
X Enter the vehicle through the rear left door.
X Press down the locking knob of the driver’s
door.
! To prevent inadvertent lockout, make
sure to have the SmartKey with you before
proceeding with the next step. The next
step will lock the vehicle.
X Exit the vehicle.
X Close the rear left door.
The vehicle is locked.
i This procedure does not arm the anti-
theft alarm system, nor does it lock the fuel
filler flap. Fuel filler flap
G
Warning!
Avoid contact with the vehicle walls as they
may contain sharp edges. Otherwise, you
could injure yourself while releasing the fuel
filler flap. Unlocking/locking manually
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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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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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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.
Front turn signal lamp bulb X
Turn bulb socket ; with the bulb
counterclockwise and remove it. X
On both sides open catch A and pull bulb
B 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.
Parking and standing lamp bulb 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. Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following:
X Switch off the ignition.
X Turn the exterior lamp switch to position
$.
Tail lamp unit To access the tail lamp units, you first have to
remove the cover in the corresponding side
trim panel of the cargo compartment.
X
Open the tailgate.
Opening the driver’s 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 ;. 316
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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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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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