2010 MERCEDES-BENZ R320 sensor

Paintwork, painted body components
!
Affixing stickers, magnets, adhesive tape
or similar materials to painted body
components may damage the paintwork.
Mercedes-Benz approved Paint Care should
be applied when water drops on the paint
surface do not “bead up”. This should
normally be done every 3 to 5 months,
depending on the climate and washing
detergent used.
Mercedes-Benz approved Paint Cleaner
should be applied if the paint surface shows
signs of embedded dirt (i.e. loss of gloss).
Do not apply any of these products or wax if
your
vehicle is parked in the sun or if the hood
is still hot.
X Use the appropriate MB-Touch-Up Stick for
quick

and provisional repairs of minor paint
damage (i.e. chips from stones, vehicle
doors, etc.).
Engine cleaning Prior to cleaning the engine compartment,
make sure to protect electrical components
and connectors from contact with water and
cleaning agents.
Corrosion protection, such as MB
Anticorrosion Wax should be applied to the
engine compartment after every engine
cleaning. Before applying, all control linkage
bushings

and joints should be lubricated. The
poly-V-belt and all pulleys should be
protected from any wax.
Vehicle washing In the winter, thoroughly remove all traces of
road salt as soon as possible.
When

washing the vehicle underbody, do not
forget to clean the inner sides of the wheels.
i Vehicles with KEYLESS-GO:
If a door handle is hit by a strong jet of
water, and a SmartKey is within approximately 3 ft (1 m) of the vehicle, it
could

be inadvertently locked or unlocked.
Hand-wash
X Do not use hot water or wash your vehicle
in direct sunlight.
X Only use a soft, wet cloth or sponge to
clean the vehicle.
X Only use a mild vehicle wash detergent,
such as Mercedes-Benz approved Car
Shampoo.
X Thoroughly spray the vehicle with a
diffused jet of water.
X Do not spray directly towards the
ventilation intake.
X Use plenty of water and rinse the sponge
and chamois frequently.
X Rinse with clean water and dry with a
chamois thoroughly.
Do not allow cleaning agents to dry on the
finish.
Automatic car wash
You can have your vehicle washed in an
automatic

car wash from the start. Brushless
car washes are preferable.
X To protect the filter system, activate the air
recirculation mode using button d on
the climate control panel.
! Do
not clean your vehicle in an automatic
touchless car wash which uses caustic
spray. Caustic spray will damage the paint
or ornamental moldings.
If the vehicle is very dirty, prewash it before
running it through the automatic car wash.
! Make sure the combination switch is set
to wiper setting $. Otherwise, the rain
sensor could activate and cause the wipers
to move unintentionally. This may lead to
vehicle damage.
Due to the width of the vehicle, fold in
exterior rear view mirrors prior to running
the vehicle through an automatic car wash
to prevent damage to the mirrors. 264
Vehicle care
Operation
251_AKB; 4; 52, en-US
d2ureepe,
Version: 2.11.8.1 2009-03-23T09:22:52+01:00 - Seite 264

X
When taking the vehicle through an
automatic conveyor-type car wash:
Make sure the automatic transmission
remains in neutral position N. Observe
instructions, see “Remaining in neutral
position N” ( Y page 117).
When leaving the automatic car wash, make
sure the mirrors are folded out.
After running the vehicle through an
automatic car wash, wipe any wax off of the
windshield and the wiper blade inserts. This
will prevent smears and reduce wiping noise
which can be caused by residual wax on the
windshield.
Ornamental moldings X
For regular cleaning and care of ornamental
moldings, use a damp cloth.
! Do not use chrome cleaner on ornamental
moldings. Although ornamental moldings
may have chrome appearance, they could
be made of anodized aluminum that will be
damaged when cleaned with chrome
cleaner. Instead, use a damp cloth to clean
those ornamental moldings.
For very dirty ornamental moldings of
which you are sure are chrome-plated, use
a chrome cleaner. If in doubt whether an
ornamental molding is chrome-plated,
contact an authorized Mercedes-Benz
Center.
Headlamps, brake lamps, tail lamps,
side markers, turn signal lenses X
Use a mild vehicle wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water.
! Only use window cleaning solutions that
are suitable for plastic lamp lenses.
Window cleaning solutions which are not
suitable may damage the plastic lamp
lenses of the headlamps. Therefore, do not
use abrasives, solvents or cleaners that
contain solvents. Cleaning the driving systems sensors
X
Switch off the ignition.
X Clean Distronic system sensor cover : by
hand.
To clean Distronic system sensor cover :
and the bumper area near sensors ; observe
the following:
R Use a mild vehicle wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water.
R Use a soft, non-scratching cloth.
! If you use a power washer to clean the
sensor covers, observe the following:
R Follow the instructions provided by the
power washer manufacturer.
R Maintain a distance between the sensor
covers and the nozzle of the power
washer. Vehicle care
265Operation
251_AKB; 4; 52, en-US
d2ureepe, Version: 2.11.8.1 2009-03-23T09:22:52+01:00 - Seite 265 Z

Display messages
Possible causes/consequences and
X SolutionsDISTRONIC Currently
Unavailabl
e
See
Operator’s
Manual Distronic is deactivated because:
R
The Distronic cover in the radiator grille is dirty.
R The functionality is impaired by heavy precipitation or fog.
R The system is overheated.
X If necessary, clean the Distronic cover in the area of the
radiator grille
(Y page 265).
X If necessary, wait until the system has cooled down.
X Restart the vehicle.
Distronic becomes operational again without the engine being
restarted when:
R dirt on the radiator grille has fallen off while driving (e.g.
slush or snow)
R the system recognizes full sensor availability (due to
lessening rain or the road surface drying)
R the message in the multifunction display disappears
You can then operate Distronic as usual again. DISTRONIC Currently
Unavailabl
e
See
Operator’s
Manual Distronic is deactivated because the functionality is impaired
by external interferences, e.g. high-frequency sources such
as toll stations, speed measuring systems etc.
X
Leave the area of the external interference.
X Activate Distronic again (Y page 148) when the message
DISTRONIC Available Again appears. Distronic is deactivated because the Distronic sensor has not
sensed any other vehicles or objects, e.g. road sign or such,
for a long time.
X
Activate Distronic again (Y page 148) when the message
DISTRONIC Available Again appears. G
Warning!
Distronic cannot take weather conditions into
account.
Switch off Distronic or do not turn it
on if the sensor is dirty or visibility is
diminished as a result of snow, rain or fog. The
distance control may be impaired even before the system is able to detect a dirty sensor. The
message
DISTRONIC Currently
Unavailable

See Operator’s Manual will
be displayed in the multifunction display and
Distronic will be turned off. Vehicle status messages in the multifunction display
281
Practical hints
251_AKB; 4; 52, en-US
d2ureepe,Version: 2.11.8.1 2009-03-23T09:22:52+01:00 - Seite 281 Z

Tires
Display messages
Possible causes/consequences and
X SolutionsCheck
tires, then
restart
Run Flat
Indicator. There has been a warning message about a loss in the tire
inflation pressure and the tire pressure loss warning system
was not restarted yet.
X
Make sure the correct tire inflation pressure is set for each
tire.
X Then restart the tire pressure loss warning system
(Y page 231). Run Flat
Indicator Inoperativ
e The tire pressure loss warning system is malfunctioning.
X
Have the tire pressure loss warning system checked at an
authorized Mercedes-Benz Center. Tire
Pressure Check
Tires The tire pressure loss warning system indicates that the tire
inflation pressure is too low in at least one tire.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.
X Check the tires and, if necessary, change the wheel
(Y page 319).
X Check and adjust tire inflation pressure as required
(Y page 230).
X Restart the tire pressure loss warning system after
adjusting the tire inflation pressure values
(Y page 231). Tire
pressure
displayed
after driving
for a few
minutes. The tire inflation pressure is being checked by the Advanced
TPMS.
X
Drive the vehicle for a few minutes. Tire
Pressure
Monitor Inoperativ
e The Advanced TPMS is malfunctioning.
X
Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center. Tire
Pressure
Monitor Inoperativ
e No
Wheel
Sensors There are wheels without appropriate wheel sensors mounted
(e.g. winter tires).
X
Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the appropriate wheel sensors installed at an
authorized Mercedes-Benz Center. Vehicle status messages in the multifunction display
283
Practical hints
251_AKB; 4; 52, en-US
d2ureepe,Version: 2.11.8.1 2009-03-23T09:22:52+01:00 - Seite 283 Z

Display messages
Possible causes/consequences and
X SolutionsTire
Pressure
Monitor Wheel
Sensor
Missing At least one sensor is defect (e.g. battery is empty).
The respective tire is indicated by
– – instead of the tire
inflation pressure in the multifunction display.
X Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the wheel sensors installed at an authorized
Mercedes-Benz Center. At least one wheel without appropriate wheel sensors is
mounted (e.g. spare tire).
The respective tire is indicated by
– – instead of the tire
inflation pressure in the multifunction display.
X Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the wheel sensors installed at an authorized
Mercedes-Benz Center. Tire
Pressure
Monitor Currently
Unavailabl
e The Advanced TPMS cannot monitor the tire inflation pressure
due to a nearby radio interference source or insufficient
power supply.
As
soon as the causes of the malfunction have been rectified,
the Advanced TPMS becomes active again automatically after
a few minutes of driving. Tire
Pressure(s
) Please
Correct The tire inflation pressure is too low in at least one tire.
or
The tire inflation pressures of the individual tires differ from
each other significantly.
The tire inflation pressure values are shown in the
multifunction display.
X
Check and correct tire inflation pressure as required
(Y page 230).
X Restart the Advanced TMPS ( Y page 235).Caution:
Tire
Defect At least one tire is deflating.
The respective tire is indicated in the multifunction display.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
X If necessary, change the wheel (Y page 319). 284
Vehicle status messages in the multifunction displayPractical hints
251_AKB; 4; 52, en-US
d2ureepe,
Version: 2.11.8.1 2009-03-23T09:22:52+01:00 - Seite 284

Display messages
Possible causes/consequences and
X Solutionsb Parking
Lamp
Front Left
or
Parking
Lamp
Front
Right The left or right front parking lamp is malfunctioning. A
substitute bulb is being used.
X
Replace the bulb as soon as possible (Y page 312). b High Beam
Left
or
High Beam
Right The left or right high-beam lamp is malfunctioning.
X
Halogen headlamp: Replace the bulb as soon as possible
(Y page 312).
X Bi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible. b License
Plate
Lamp Left
or
License
Plate
Lamp Right The left or right license plate lamp is malfunctioning.
X
Replace the bulb as soon as possible (Y page 312). b AUTO
Light
Inoperativ
e The light sensor is malfunctioning. The headlamps come on
automatically.
X
Contact an authorized Mercedes-Benz Center as soon as
possible.
To switch off the headlamps (U.S. vehicles only):
X In the control system, set daytime running lamp mode to
manual

(Y page 134).
X Switch off the headlamps using the exterior lamp switch
(Y page 97). b Low Beam
Left
or
Low Beam
Right The left or right low-beam lamp is malfunctioning.
X
Halogen headlamp:
Replace the bulb as soon as possible
(Y page 312).
X Bi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible. b Foglamp
Rear Left The rear fog lamp is malfunctioning.
X
Replace the bulb as soon as possible (Y page 312). 296
Vehicle status messages in the multifunction display
Practical hints
251_AKB; 4; 52, en-US
d2ureepe,
Version: 2.11.8.1 2009-03-23T09:22:52+01:00 - Seite 296

X
Tighten the five wheel bolts evenly,
following the diagonal sequence illustrated
(: to A), until all bolts are tight. Observe
a tightening torque of 110 lb-ft (150 Nm). G
Warning!
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
110 lb-ft (150 Nm).
X Fully collapse the jack to storage position,
see ( Y page 272).
X Store the jack and the other vehicle tools
in the designated storage space.
For information on storing the spare wheel
after it has been replaced by a regular road
wheel, see ( Y page 272).
i The damaged road wheel cannot be
stored in the spare wheel well under the
cargo compartment floor. It should be
transported in the cargo compartment
wrapped in a protective wrap.
i USA only:
Do not restart the tire inflation pressure
monitor until a full size wheel/tire with
functioning sensor has been placed back
into service on the vehicle. MOExtended system
The MOExtended system allows you to
continue driving your vehicle even if there is
a total loss of pressure in one or more tires. You may only use the MOExtended system in
conjunction with the tire pressure loss
warning system (
Y page 231) or the
Advanced TPMS (Y page 232).
The maximum distance in emergency mode
depends on the vehicle’s load. It is 50 miles
(80 km) if the vehicle is partially loaded and
18 miles (30 km) if the vehicle is fully loaded.
The point at which the maximum driving
distance in emergency mode begins is when
the warning message appears in the
multifunction display indicating that there is
a loss of tire inflation pressure.
X Do not exceed the maximum speed of
50 mph (80 km/h). G
Warning!
In emergency mode, your vehicle’s driving
characteristics are diminished in such
situations as:
R driving around curves
R while braking
R while accelerating rapidly
Therefore, your driving style must be adapted
accordingly. Avoid abrupt steering and driving
maneuvers, as well as driving over obstacles
(road curbs, potholes, or off-road areas). This
is especially important if the vehicle is heavily
loaded.
The emergency driving distance that can be
achieved greatly depends on the demands
placed on the vehicle. Depending on speed,
load, driving maneuvers, road conditions,
outside temperature, etc., the distance can be
significantly shorter or, if the vehicle is driven
cautiously, somewhat longer.
Do not continue driving in emergency mode if
R you notice knocking sounds
R the vehicle starts to shake
R smoke develops and you smell rubber
R ESP ®
is intervening continuously
R you notice tears on the tire sidewalls 330
Flat tirePractical hints
251_AKB; 4; 52, en-US
d2ureepe,
Version: 2.11.8.1 2009-03-23T09:22:52+01:00 - Seite 330