2010 MERCEDES-BENZ R320 light

Display messages
Possible causes/consequences and
X Solutionsb Switch
Off Lights You have removed the SmartKey from the starter switch,
opened the driver’s door and left the headlamps on or
removed the SmartKey with KEYLESS-GO from the vehicle
and left the headlamps on.
X
Turn the exterior lamp switch to $ or Ã
(Y page 97).
or
X With the rear fog lamp switched on: Push in the exterior
lamp switch to its stop. b Tail Lamp
Left
or
Tail Lamp
Right The left or right tail lamp is malfunctioning. A substitute bulb
is being used.
X
Replace the bulb as soon as possible (Y page 312). b Cornering
Lamp Left
or
Cornering
Lamp Right The left or right corner-illuminating front fog lamp is
malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Trailer
Brake Lamp The left or right trailer brake lamp is malfunctioning.
X
Replace the bulb as soon as possible. b Trailer
Tail Lamp
Left
or
Trailer
Tail Lamp
Right The left or right trailer tail lamp is malfunctioning.
X
Replace the bulb as soon as possible. b Trailer
Turn
Signal
Left
or
Trailer
Turn
Signal
Right The left or right trailer turn signal lamp is malfunctioning.
X
Replace the bulb as soon as possible. Vehicle status messages in the multifunction display
297
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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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Rear lamps Type
:
Tail lamp, brake lamp, side marker lamp:
P 21 W
; Turn signal lamp: PY 21 W
= Rear fog lamp (driver’s side only): P 21 W
? Backup lamp: P 21 W License plate lamps Type
:
License plate lamps: C 5 W Notes on bulb replacement
!
Do not replace LEDs or bulbs not
described in this section. You could
otherwise damage the LEDs, the bulbs or
parts of the vehicle. Only have the LEDs and
bulbs replaced at an authorized Mercedes-
Benz Center.
R Only use 12-volt bulbs of the same type and
with the specified watt rating.
R Switch the lights off before changing a bulb
to prevent short circuits.
R Always use a clean lint-free cloth when
handling bulbs.
R Your hands should be dry and free of oil and
grease.
R If the newly installed bulb does not come
on, contact an authorized Mercedes-Benz
Center. i
Mercedes-Benz recommends using
Longlife (LL) bulbs. Replacing bulbs for front lamps
Before you start to replace a bulb for a front
lamp, do the following:
X Switch off the ignition.
X Turn the exterior lamp switch to position
$.
X Open the hood (Y page 222). 314
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X
Stick TIREFIT container : upside down
into notch ; of the electric air pump. Example illustration
X
Unscrew the valve cap of the damaged tire
from tire valve E. Version 1
X
Version 1 only: Close vent screw F on
pressure gauge G.
X Screw filler hose D onto tire valve E.
X Insert electrical plug ? into the power
outlet in the second-row footwell
(Y page 205).
! The cigarette lighter as well as the power
outlets in the passenger footwell and cargo
compartment are not designed for use with
the electric air pump. Use the power outlet
in the second-row footwell for electric air
pump operation. X
Turn the SmartKey in the starter switch to
position 1.
or
X Vehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button once. Do
not depress the brake pedal.
X Press I on electric air pump switch =.
The electric air pump is switched on and
inflates the tire.
i First, the sealing is pumped into the tire.
The pressure may briefly rise to up to 73 psi
(5 bar). This is normal and not an indication
of a malfunction. Do not switch off the
electric air pump.
X Let the electric air pump inflate the tire for
approximately 5 minutes.
The pressure gauge must display at least
26 psi (1.8 bar). G
Warning!
The air hose can become hot during inflation.
Please exercise appropriate caution.
! Do not operate the electric air pump
longer than 8 minutes without interruption.
Otherwise it may overheat.
You may operate the air pump again after
it has cooled off.
If the tire inflation pressure of at least
26 psi (1.8 bar) is not attained:
X Turn off the electric air pump by pressing
0 on electric air pump switch =.
X Detach filler hose D from tire valve E.
X Drive vehicle back or forth very slowly
approximately 30 ft (10 m).
This serves to better distribute the TIREFIT
sealant material inside the tire.
X Inflate the tire again. G
Warning!
If a tire inflation pressure of 26 psi (1.8 bar)
is not attained, the tire is too severely 322
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X
Prevent the vehicle from rolling away by
blocking wheels with wheel chocks or other
sizeable objects.
When your vehicle is equipped with a wheel
chock, it is included with the vehicle tool kit
(Y page 270). For information on setting up
the collapsible wheel chock, see
(Y page 272). G
Warning!
Only jack up the vehicle on level ground or on
slight inclines/declines. Otherwise, the
vehicle could fall off the jack and injure you or
others.
Changing a wheel on a level surface Changing rear wheel on passenger side (example
illustration)
X
Place a wheel chock or other sizeable
object in front of and another wheel chock
or other sizeable object behind the wheel
that is diagonally opposite to the wheel
being changed.
Changing a wheel on a slight decline
Always try lifting the vehicle using the jack on
a level surface. However, should
circumstances require you to do so on a slight
decline: Changing wheel on passenger side (example
illustration)
X
Place wheel chocks or other sizeable
objects on the downhill side in front of both
wheels on the side opposite to the side on
which the wheel is to be changed.
Changing a wheel on a slight incline
Always try lifting the vehicle using the jack on
a level surface. However, should
circumstances require you to do so on a slight
incline: Changing wheel on passenger side (example
illustration)
X
Place wheel chocks or other sizeable
objects on the downhill side in front of both
wheels on the side opposite to the side on
which the wheel is to be changed. Flat tire
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Removing the wheel
X
Unscrew the uppermost wheel bolt and
remove it.
X Replace this wheel bolt with alignment
bolt :.
X Remove the remaining bolts.
! Do not place wheel bolts in sand or dirt.
This could result in damage to the wheel
bolts and wheel hub threads.
X Remove the wheel.
Attaching the spare wheel G
Warning!
Inflate collapsible tire only after the wheel is
properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
G
Warning!
Always replace wheel bolts that are damaged
or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact an
authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or improperly tightened
wheel bolts can cause the wheel to come off.
This could cause an accident. Make sure to
use the correct wheel bolts. G
Warning!
Only use genuine Mercedes-Benz wheel bolts.
Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle could
fall off the jack. Wheel bolt
: must be used for 19" and 20"
light alloy wheels. Wheel bolt ; must be used
for the spare wheel. The wheel bolts for the
spare wheel are located in the cargo
compartment with the spare wheel.
! Wheel bolts ; must be used when
mounting the spare wheel with collapsible
tire. The use of any wheel bolts other than
wheel bolts ; for the spare wheel with
collapsible tire will damage the vehicle’s
brakes. G
Warning!
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired.
X Clean contact surfaces of wheel and wheel
hub.
! To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt. Flat tire
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X
Guide the spare wheel onto the alignment
bolt and push it on.
X Insert the wheel bolts and tighten them
slightly.
X Unscrew the alignment bolt.
X Install the last wheel bolt and tighten it
slightly.
X Inflate the collapsible tire ( Y page 328).
Inflating the collapsible tire G
Warning!
Inflate collapsible tire only after the wheel is
properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
G
Warning!
Observe safety instructions on air pump label.
! Do not lower the vehicle before inflating
the collapsible tire. Otherwise the rim may
be damaged.
Your vehicle may be equipped with either of
two versions of the electric air pump:
R Version 1: The air hose with pressure
gauge and the electrical plug are located
behind a flap.
R Version 2: The pressure gauge is located
in the pump housing. The air hose and
electrical plug are located at the bottom of
the pump housing. The following description applies to both
versions. Differences in usage are expressly
declared.
Version 1
Version 2
X
Version 1 only: Open flap : on electric
air pump.
X Version 1 only: Pull out electrical plug
= and air hose with pressure gauge and
vent screw ?.
X Version 2 only: Pull electrical plug = and
the air hose out of the pump housing
bottom.
X Version 1 only: Close vent screw on air
hose ?.
X Remove the valve cap from the collapsible
tire valve.
X Screw union nut A onto the collapsible tire
valve.
X Make sure air pump switch ; is set to 0.
X Insert electrical plug = into the power
outlet in the second-row footwell
(Y page 205). 328
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!
The cigarette lighter as well as the power
outlets in the passenger footwell and cargo
compartment are not designed for use with
the electric air pump. Use the power outlet
in the second-row footwell for electric air
pump operation.
X Turn the SmartKey in the starter switch to
position 1.
or
X Vehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button once. Do
not depress the brake pedal.
X Press I on electric air pump switch ;.
The electric air pump switches on and
inflates the collapsible tire.
X Inflate the collapsible tire to the
recommended tire inflation pressure as
specified for your vehicle

(Y page 350).
This should take approximately 5 minutes. G
Warning!
The air hose and the union nut can become
hot during inflation. Exercise proper caution
to avoid burning yourself when using the
equipment.
! Do not operate the electric air pump
longer

than 8 minutes without interruption.
Otherwise it may overheat.
You may operate the air pump again after
it has cooled off.
! Compare the recommended tire inflation
pressure for your vehicle with the tire
inflation pressure on the yellow label
located on the spare wheel rim.
If the tire inflation pressure on the yellow
label on the spare wheel rim differs from
the values given in this Operator’s Manual,
inflate the tire to the recommended tire
inflation pressure given on the yellow label
on the spare wheel rim. X
Press 0 on electric air pump switch ;.
X Turn the SmartKey in the starter switch to
position 0.
or
X Vehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button twice. Do
not depress the brake pedal.
X Version 1 only:
If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
(Y page 350), decrease tire pressure using
the vent screw on air hose ?.
X Version 2 only:
If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
(Y page 350), decrease tire pressure using
deflate button B. G
Observe Safety notes, see page 230.
X Detach the electric air pump.
X Reinstall collapsible tire valve cap.
X Version 1 only: Store electrical plug =
and air hose ? behind flap :.
X Version 2 only: Store electrical plug =
and the air hose back into the pump
housing bottom.
X Place the electric air pump back in its
designated storage space.
X Lower the vehicle.
Lowering the vehicle G
Warning!
Inflate collapsible tire only after the wheel is
properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
X Attach ratchet to vehicle jack so that the
word DOWN can be seen.
Lower the vehicle until the vehicle is resting
fully on its own weight:
X Turn ratchet in direction DOWN.
X Remove the jack. Flat tire
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