2010 MERCEDES-BENZ R320 sensor

from headlamps falls on the sensor in the
interior rear view mirror.
The rear view mirrors will not react if the
automatic transmission is set to reverse gear
R or the interior lighting is switched on.
G
Warning!
The auto-dimming function does not react if
incoming light is not aimed directly at sensors
in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, when transporting cargo
which covers the rear window.
Light hitting the mirror(s) at certain angles
(incident light) could blind you. As a result,
you may not be able to observe traffic
conditions and could cause an accident. Exterior rear view mirror parking
position
For more convenient parking, you can set the
passenger-side exterior rear view mirror so
that you can see the rear wheel and the road
curb.
Setting and storing the parking position X
Switch on the ignition.
X Press button =, to select the passenger-
side exterior rear view mirror. X
Shift the automatic transmission into
reverse gear R.
The passenger-side exterior rear view
mirror moves to the preset parking
position.
X Adjust the passenger-side exterior rear
view mirror with adjustment button ; so
that you see the rear wheel and the road
curb.
The exterior rear view mirror parking
position is stored.
Calling up the parking position X
Switch on the ignition.
X Press button =, to select the passenger-
side exterior rear view mirror.
X Shift the automatic transmission into
reverse gear R.
The passenger-side exterior rear view
mirror moves to the stored parking
position.
The passenger-side exterior rear view mirror
returns to its previously stored driving
position
R 10 seconds after you have put the gear
selector lever out of reverse gear R
R immediately once your vehicle exceeds a
speed of approximately 6 mph (10 km/h)
R immediately when you press button : to
select the driver’s side exterior rear view
mirror Power folding exterior rear view
mirrors
! Before you drive the vehicle through an
automatic car wash, fold in the exterior rear
view mirrors. Otherwise they may get
damaged. Mirrors
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accumulates on a windshield/rear window
might scratch the glass and/or damage the
wiper blades when wiping occurs on a dry
windshield/rear window. If it is necessary
to operate the wipers in dry weather
conditions, always operate the wipers with
washer fluid.
Windshield wipers
X Observe notes on page (Y page 103).
Switching on/off Combination switch
1
$ Windshield wipers off
2 Ä Slow intermittent wiping 6
3 Å Fast intermittent wiping 7
4 ° Slow continuous wiping
5 ¯ Fast continuous wiping
B í Single wipe/ î Wiping with
washer fluid
X Switch on the ignition.
X Turn the combination switch to the desired
position, depending on the intensity of the
rain.
Intermittent wiping Only switch on intermittent wiping under wet
weather conditions or in the presence of
precipitation. When you select intermittent wiping, the rain
sensor is activated. The rain sensor sets a
suitable wiping interval depending on the
wetness of the sensor surface automatically.
!
Do not leave windshield wipers on an
intermittent setting when the vehicle is
taken to an automatic car wash or during
windshield cleaning. Windshield wipers will
operate in the presence of water sprayed
on the windshield, and windshield wipers
may be damaged as a result.
! If you have set intermittent wiping, dirt on
the surface of the rain sensor or optical
effects may cause the windshield wipers to
wipe in an undesired fashion. This could
then damage the windshield wiper blades
or scratch the windshield. You should
therefore switch off the windshield wipers
when weather conditions are dry.
X Turn the combination switch to position
Ä or Å.
After the initial wipe, pauses between
wipes are controlled by the rain sensor
automatically.
Intermittent wiping is interrupted when the
vehicle is at a standstill and a front door is
opened. This protects persons getting into or
out of the vehicle from being sprayed.
Intermittent wiping will be continued when all
doors are closed and
R the automatic transmission is in drive
position D or reverse gear R
or
R the wiper setting is changed using the
combination switch
6 Rain sensor operation with low sensitivity.
7 Rain sensor operation with high sensitivity. 104
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Door windows
X
Switch on the ignition.
X Opening/closing: Press or pull and hold
switch : to ? to the resistance point.
The corresponding window moves
downward or upward until you release the
switch.
X Express operation: Press or pull
switch : to ? past the resistance point
and release.
The corresponding window opens or closes
completely.
X Stopping during express operation:
Press or pull the respective switch again.
Closing when a door window is blocked G
Warning!
Make sure that nobody can become trapped
and be seriously or even fatally injured when
closing a door window with greater force or
without automatic reversal function.
If the upward movement of a door window is
blocked during the closing procedure, the
door window will stop and open slightly.
X Immediately after the door window has
stopped because it was blocked, pull and
hold the respective switch upward until the
door window is fully closed.
The door window closes with greater force. If the door window is blocked again and opens
slightly:
X
Immediately after the door window was
blocked, pull and hold the respective
switch upward until the door window is fully
closed.
The door window closes without automatic
reversal function. G
Warning!
Pulling and holding the switch to close the
door window immediately after it had been
blocked two times will cause the door window
to close without any reversal function for as
long as you hold the switch.
Hinged quarter windows X
Switch on the ignition.
X Opening: Press switch A and release.
Both hinged quarter windows open
completely.
X Closing: Pull switch A and release.
Both hinged quarter windows close
completely.
i When the obstruction sensor detects that
a hinged quarter windows is blocked during
the closing process, they will stop and open
slightly.
X Halting closing process: Press or pull
switch A once more during the closing
process.
The hinged quarter windows will stop and
open completely.
i For your safety, the hinged quarter
windows cannot be opened again until
4 seconds have passed. Synchronizing door windows
The door windows must be synchronized after
the battery has been disconnected or if the
door windows cannot be fully closed (express
operation). Power windows
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X
Briefly pull the cruise control lever in
direction of arrow ?.
If no speed is stored, the current speed is
set and stored.
X Remove your foot from the accelerator
pedal.
The last stored speed is deleted from memory
when the engine is turned off. Distronic
Safety notes When activated, the Distronic adaptive cruise
control increases the driving convenience
afforded
by the cruise control while traveling
on expressways and other major roadways.
R If the Distronic distance sensor detects a
slower moving vehicle directly ahead, your
vehicle speed will be reduced so that you
follow that vehicle at your preset following
distance.
R If there is no vehicle directly ahead of you,
the Distronic will function in the same way
as standard cruise control ( Y page 142).G
Warning!
The Distronic requires familiarity with its
operational characteristics. We strongly
recommend that you review the following
information carefully before operating the
system. G
Warning!
When the Distronic is braking, the brake pedal
is retracted (i.e. depressed automatically).
The pedals’ range of motion must not be
impeded by any obstacles:
R Do not place any objects in the footwell.
R Make sure that the floormats and carpets
are securely in place.
R Do

not rest your foot underneath the brake
pedal, as it could otherwise be trapped. You could otherwise cause an accident and
injure yourself and/or others.
G
Warning!
The Distronic is a convenience system. Its
speed adjustment reduction capability is
intended to make cruise control more
effective

and usable when traffic speeds vary.
It is not however, intended to, nor does it,
replace the need for extreme care.
The responsibility for the vehicle’s speed,
distance to the preceding vehicle and, most
importantly, brake operation to ensure a safe
stopping distance, always remains with the
driver.
The Distronic cannot take street and traffic
conditions into account. Complex driving
situations are not always fully recognized by
the Distronic. This could result in wrong or
missing distance warnings. G
Warning!
The Distronic adaptive cruise control is not a
substitute for active driving involvement. It
does

not react to pedestrians or on stationary
objects, nor does it recognize or predict the
lane curvature or the movement of preceding
vehicles.
The Distronic can only apply 20% of the
maximum braking power of the vehicle.
It is the driver’s responsibility at all times to
be attentive to the road, weather and traffic
conditions. Additionally, the driver must
provide the steering, braking and other driving
inputs necessary to remain in control of the
vehicle.
High-frequency sources such as toll stations,
speed measuring systems etc. can cause the
Distronic system to malfunction. G
Warning!
The Distronic cannot take road and traffic
conditions into account. Only use the
Distronic if the road, weather and traffic
conditions make it advisable to travel at a
constant speed. Driving systems
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G
Warning!
Use of the Distronic can be dangerous on
slippery roads. Rapid changes in tire traction
can result in wheel spin and loss of control.
The Distronic does not function in adverse
sight and distance conditions. Do not use the
Distronic during conditions of fog, heavy rain,
snow or sleet. G
Warning!
The Distronic cannot take weather conditions
into account. Switch off the Distronic or do
not switch it on if:
R roads are slippery or covered with snow or
ice. The wheels could lose traction while
braking or accelerating, and the vehicle
could skid.
R the Distronic system sensor cover is dirty
or visibility is diminished due to snow, rain
or fog, for example. The distance control
system functionality could be impaired.
Always pay attention to surrounding traffic
conditions even while the Distronic is
switched on. Otherwise, you may not be able
to recognize dangerous situations until it is
too late. This could cause an accident in which
you and/or others could be injured. G
Warning!
The “Resume” function should only be
operated if the driver is fully aware of the
previously set speed and wishes to resume
this particular preset speed. G
Warning!
Close attention to road and traffic conditions
is imperative at all times, regardless of
whether or not the Distronic is activated.
Use of the Distronic can be dangerous on
winding roads or in heavy traffic because
conditions do not allow safe driving at a
constant speed.
The Distronic will not react to stationary
objects in the roadway (e.g. a stopped vehicle
in a traffic jam or a disabled vehicle). The Distronic will also not respond to oncoming
vehicles.
Switch off the Distronic:
R
when changing from the left to the right
lane if vehicles are moving more slowly in
the left lane
R when entering a turn lane or highway off
ramp
R in complex driving situations, such as in
highway construction zones
In these situations, the Distronic will continue
to maintain the set speed unless deactivated.
The Distronic is designed and intended only
to maintain a set speed and keep a set
distance from moving objects in front of it.
i This device has been approved by the FCC
as a “Vehicular Radar System”. The radar
sensor is intended for use in an automotive
radar system only. Removal, tampering, or
altering of the device will void any
warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Distronic displays in the speedometer When the Distronic is activated, one or two
cruise control speed segments come on
around set speed
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X
Increasing distance: Turn distance
setting switch : in direction of arrow =.
Increasing the distance setting tells
Distronic to maintain a greater following
distance to the preceding vehicle.
X Decreasing distance: Turn distance
setting switch : in direction of arrow ;.
Decreasing the distance setting tells
Distronic to maintain a shorter following
distance to the preceding vehicle.
Driving with Distronic This section describes a number of driving
situations where special precaution is
required on the part of the driver. Be prepared
to brake in such situations. Braking will
deactivate the Distronic system.
G
Warning!
The Distronic works to maintain the speed
selected by the driver unless a moving
obstacle proceeding directly ahead of it in the
same travel direction is detected (e.g.
following another vehicle ahead of you at your
set distance).
This means that:
R Your vehicle can pass another vehicle after
you have changed lanes.
R While in a sharp turn or if the preceding
vehicle is in a sharp turn, the Distronic
could lose sight of the preceding vehicle.
Your vehicle could then accelerate to the
previously selected speed. The Distronic regulates only the distance
between your vehicle and those directly
ahead of it, but does not register stationary
objects in the road, e.g.:
R
a stopped vehicle in a traffic jam
R a disabled vehicle
R an oncoming vehicle
The driver must always be alert, observe all
traffic and intercede as required by means of
steering or braking the vehicle. G
Warning!
The Distronic should not be used in snowy or
icy road conditions.
The most likely cause for a malfunctioning
system is a dirty Distronic system sensor
cover (located in the hood grille), especially
at times of snow and ice or heavy rain.
In such a case, the Distronic will switch off,
and the message DISTRONIC Currently
Unavailable – See Operator’s Manual
appears in the multifunction display.
For cleaning and care of the Distronic system
sensor cover, see (Y page 265).
i If the message DISTRONIC Available
Again appears during driving, the dirt (e.g.
slush) has dissolved; the Distronic works
again, if you reactivate it ( Y page 148).
Turns and bends In turns or bends, the Distronic may not
detect a moving vehicle in front, or it may
detect one too soon. This may cause your
vehicle to brake late or unexpectedly. Driving systems
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X
Close all doors and the tailgate.
X Start the engine.
When indicator lamp ; is on:
X Press switch :.
Indicator lamp ; flashes. The vehicle
adjusts to the highway level.
The following message appears in the
multifunction display while the level is
being set: i
The message can be cleared by pressing
the V, U, & or * button on
the multifunction steering wheel.
When the highway level is reached, indicator
lamp ; goes out and the following message
appears in the multifunction display for
approximately 5 seconds: The vehicle level raised from highspeed level
to highway level automatically when the
vehicle speed falls below 40 mph (64 km/h).
In the raised level, the vehicle level is lowered
to the highway level automatically when the
vehicle speed is exceeding 25 mph
(40 km/h).
All-wheel drive (4MATIC)
In vehicles with all-wheel drive (4MATIC),
both axles are powered at all times when the
vehicle is being operated. The 4MATIC improves traction in conjunction with the
ESP
®
(Y page 65) and the Electronic Traction
System (4-ETS) (Y page 65). G
Warning!
If a drive wheel is spinning due to insufficient
traction:
R While driving off, apply as little throttle as
possible.
R While driving, ease up on the accelerator
pedal.
R Adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The 4MATIC cannot prevent accidents
resulting from excessive speed.
! Do not tow with one axle raised. Doing so
could damage the transfer case, which is
not covered by the Mercedes-Benz Limited
Warranty. All wheels must be on or off the
ground. Observe instructions for towing the
vehicle with all wheels on the ground.
! Only conduct operational or performance
tests on a two-axle dynamometer. If such
tests are necessary, contact an authorized
Mercedes-Benz Center. You could
otherwise seriously damage the brake
system and/or the transfer case which is
not covered by the Mercedes-Benz Limited
Warranty.
i In winter operation, the maximum
effectiveness of the 4MATIC is only
achieved with winter tires ( Y page 251) or
snow chains as required. Parktronic system
The Parktronic system is an electronic
parking aid with ultrasonic sensors designed
to assist the driver during parking maneuvers.
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distance between the vehicle and an obstacle
visually and audibly.
The Parktronic system is activated
automatically when
R
you switch on the ignition
and
R you release the parking brake
and
R the automatic transmission is in drive
position D, reverse gear R, or neutral
position N
The Parktronic system deactivates at speeds
above approximately 11 mph (18 km/h). At
lower speeds, the Parktronic system
activates again.
The Parktronic system also deactivates when
you shift the automatic transmission into
park position P or engage the parking brake.
The Parktronic system monitors the
surroundings of your vehicle with six sensors
in the front bumper and four sensors in the
rear bumper. To function properly, sensors
: must be free
of dirt, ice, snow and slush. Clean
sensors : regularly. Be careful not to
scratch or damage sensors :, see “Cleaning
the driving systems sensors” (Y page 265). G
Warning!
The Parktronic is a supplemental system. It is
not intended to, nor does it replace, the need
for extreme care. The responsibility during parking and other critical maneuvers always
remains with the driver.
G
Warning!
Make sure no persons or animals are in or
near the area in which you are parking/
maneuvering. Otherwise, they could be
injured.
! Special attention must be paid to objects
with smooth surfaces or low silhouettes
(e.g. trailer couplings, painted posts,
elevated crossbars or road curbs). Such
objects may not be detected by the system
and can damage the vehicle.
During parking maneuvers, pay special
attention to objects located above or below
the height of the sensors (e.g. street curbs,
painted posts, or trailer hitches etc.). The
Parktronic system will not detect such
objects at close range and damage to your
vehicle or the object may result.
! Ultrasonic signals from outside sources
(e.g. truck air brakes, car wash, or
jackhammers) may impair the operation of
the Parktronic system.
Range of the sensors Driving systems
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