permitted. 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.
XPress button \000@ or \000> to select the
Settings menu.
XPress button \000= or \000< to select the
Radar Sensors function.
XPress button \000d.XPress button \000d again if you would like
to change the current status.
Depending on the previous status, the
Radar Sensors will be switched on
(Enabled) or off (Disabled).
iThe selected status of the radar sensors
remains stored in memory even if the
engine is turned off and restarted.
The following message appears in the
multifunction display if the radar sensors are
switched off and you attempt to activate
DISTRONIC PLUS or PRE-SAFE® Brake:
Radar Sensors
(See Oper. Manual)
Disabled
Voice Control System introduction
Safety notes
GWarning!
Only use the Voice Control System when road
and traffic conditions permit you to do so.
Otherwise you could be involved in an
accident in which you or others could be
injured.
GWarning!
Please devote your attention first and
foremost to the traffic situation you are in.
While the system permits hands-free phone
operation, attention to traffic may be diverted
not only by physical operation of a phone, but
also by the distraction of a phone
conversation while driving. As such, for safety
reasons, we encourage the driver to stop the
vehicle in a safe place before answering or
placing a phone call.
For safety reasons, you should only select a
destination when the vehicle is stationary.
While the navigation system provides
directional assistance, the driver must remain
focused on safe driving behavior, especially
attention to traffic and street signs, and
should utilize the system’s audio cues while
driving.
The navigation system does not supply any
information on stop signs, yield signs, traffic
regulations or traffic safety rules. Their
observance always remains in the driver’s
personal responsibility. Maps do not cover all
areas nor all routes within an area.
Traffic regulations always have priority over
any route recommendations given.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximately
14 m) every second.
GWarning!
Navigation announcements are intended to
direct you while driving without diverting your
attention from the road and driving.
Please always use navigation announcements
instead of consulting the map display for
directions. Consulting the symbols or map
display for directions may cause you to divert
your attention from driving and increase your
risk of an accident.
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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.
XTurn the combination switch to position
004E or 004F .
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
Single wipeXPress the combination switch briefly in
direction of arrow 0087 to the resistance
point.
The windshield wipers wipe one time
without washer fluid.
Wiping with washer fluid
XPress the combination switch in direction
of arrow 0087 past the resistance point.
The windshield wipers operate with washer
fluid.
i To prevent smears on the windshield or
noisy/chattering wiper blades, wipe with
washer fluid every now and then even when
it is raining.
For information on filling up the washer
reservoir, see “Washer system and headlamp
cleaning system” ( Y page 409).
For information on cleaning the headlamps
with washer fluid, see “Headlamp cleaning
system” ( Y page 303).
Problems with wipers
! If anything blocks the windshield wipers
(leaves, snow, etc.), switch them off
immediately.
For safety reasons, do the following before
attempting to remove any blockage:
R Stop the vehicle in a safe location.
R Remove the SmartKey from the starter
switch.
or
R Turn off the engine by pressing the
KEYLESS-GO start/stop button and
open the driver’s door (with the driver’s
door open, starter switch is in position
0 , same as with SmartKey removed from
starter switch).
R Engage the electronic parking brake.
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anyone being harmed by the closing
procedure, press and hold button \0007.
Vehicles with KEYLESS-GO:
RRelease the sensor surface on the outside
door handle to stop the closing procedure.
RImmediately pull on the same outside door
handle and hold firmly. The door windows
and the tilt/sliding sunroof or panorama
roof with power tilt/sliding panel will open
for as long as the door handle is held but
the door not opened.
With SmartKey
The SmartKey must be in close proximity to
the driver’s outside door handle.
XAim transmitter eye of the SmartKey at the
driver’s outside door handle.
XPress and hold button \0007 on the
SmartKey until the door windows and the
tilt/sliding sunroof or panorama roof with
power tilt/sliding panel are closed
completely.
XRelease button \0007 on the SmartKey to
interrupt the closing procedure.
XVehicles with panorama roof with
power tilt/sliding panel and/or rear
door window sunshades: Press button
\0007 on the SmartKey once more.
The roller sunblinds and/or the rear door
window sunshades extend.
XPress button \0006 on the SmartKey to
interrupt the extending procedure.
iVehicles with rear door window
sunshades: The rear window sunshade
extends simultaneously.
With KEYLESS-GO
The SmartKey with KEYLESS-GO must be
located outside the vehicle within
approximately 3 ft (1 m) of a door.
XClose all doors.XTouch and hold sensor surface \000F on an
outside door handle until the door windows
and the tilt/sliding sunroof or panorama
roof with power tilt/sliding panel are
closed completely.
iMake sure you are only touching sensor
surface \000F.
XRelease sensor surface \000F to interrupt the
closing procedure.
XVehicles with panorama roof with
power tilt/sliding panel and/or rear
door window sunshades: Touch and hold
sensor surface \000F once more.
The roller sunblinds and/or the rear door
window sunshades extend.
XPull on the outside door handle and hold
firmly to interrupt the extending procedure.
iVehicles with rear door window
sunshades: The rear window sunshade
extends simultaneously.
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Adjustment in 1 mph (Canada:
1 km/h) increments
i The set speed value is increased or
decreased in 1 mph (Canada: 1 km/h)
increments each time you lift or press the
cruise control lever up or down to the
resistance point.XIncreasing: Briefly lift the cruise control
lever up to the resistance point in direction
of arrow 0046.XDecreasing: Briefly press the cruise
control lever down to the resistance point
in direction of arrow 0047.XRelease the cruise control lever.
The new speed is set and the vehicle will
accelerate or decelerate.
Adjustment in 5 mph (Canada:
10 km/h) increments
i The set speed value is increased or
decreased in 5 mph (Canada: 10 km/h)
increments each time you lift or press the
cruise control lever up or down past the
resistance point.
XIncreasing: Briefly lift the cruise control
lever up past the resistance point in
direction of arrow 0046.XDecreasing: Briefly press the cruise
control lever down past the resistance
point in direction of arrow 0047.XRelease the cruise control lever.
The new speed is set and the vehicle will
accelerate or decelerate. Keep in mind that
it may take a brief moment until the vehicle
has reached the set speed.
Setting stored speed (Resume
function)
GWarning!
The set speed stored in memory should only
be set again if prevailing road conditions and
legal speed limits permit. Possible
acceleration or deceleration differences
arising from returning to the preset speed
could cause an accident and/or serious injury
to you and others.XBriefly pull the cruise control lever in
direction of arrow 0088.
If no speed is stored, the current speed is
set and stored.XRemove your foot from the accelerator
pedal.
The last stored speed is deleted from memory
when the engine is turned off.
DISTRONIC PLUS
Safety notes
When activated, the DISTRONIC PLUS
adaptive cruise control system increases the
driving convenience afforded by the cruise
control while traveling on expressways and
other major roadways.
R If the DISTRONIC PLUS 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 PLUS will function in the
same way as standard cruise control
( Y page 328).
GWarning!
The DISTRONIC PLUS requires familiarity with
its operational characteristics. We strongly
recommend that you review the following
information carefully before operating the
system.
GWarning!
HYBRID vehicles: It is imperative that you read
the HYBRID Supplemental Operating
Instructions included in your vehicle literature
portfolio. You may otherwise not receive all
necessary safety information and warning for
the operation of your vehicle.
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GWarning!
When the DISTRONIC PLUS 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.
GWarning!
The DISTRONIC PLUS 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 PLUS cannot take street and
traffic conditions into account.
Complex driving situations are not always
fully recognized by the DISTRONIC PLUS. This
could result in wrong or missing distance
warnings.
GWarning!
The DISTRONIC PLUS 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 curvature and lane layout or the
movement of preceding vehicles. The
DISTRONIC PLUS can only apply a maximum
of 40% of the vehicle’s braking power.
The DISTRONIC PLUS may not detect narrow
vehicles possibly driving in front of you, such
as motorcycles and vehicles driving in an
offset formation.
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 PLUS system to temporarily
cease functioning.GWarning!
The DISTRONIC PLUS cannot take road and
traffic conditions into account. Only use the
DISTRONIC PLUS if the road, weather and
traffic conditions make it advisable to travel
at a constant speed.
GWarning!
Use of the DISTRONIC PLUS can be
dangerous on slippery roads. Rapid changes
in tire traction can result in wheel spin and
loss of control.
The DISTRONIC PLUS does not function in
adverse sight and distance conditions. Do not
use the DISTRONIC PLUS during conditions of
fog, heavy rain, snow or sleet.
GWarning!
The DISTRONIC PLUS cannot take weather
conditions into account. Switch off the
DISTRONIC PLUS 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 PLUS system sensor covers
are 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 PLUS is
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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.GWarning!
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.
GWarning!
Close attention to road and traffic conditions
is imperative at all times, regardless of
whether or not the DISTRONIC PLUS is
activated.
Use of the DISTRONIC PLUS can be
dangerous on winding roads or in heavy traffic
because conditions do not allow safe driving
at a constant speed.
The DISTRONIC PLUS will not react to
stationary objects in the roadway (e.g. a
stopped vehicle in a traffic jam or a disabled
vehicle). The DISTRONIC PLUS will also not
respond to oncoming vehicles.
Switch off the DISTRONIC PLUS:
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 PLUS will
continue to maintain the set speed unless
deactivated.
The DISTRONIC PLUS is designed and
intended only to maintain a set speed and
keep a set distance from moving objects in
front of it.
The DISTRONIC PLUS functions in a speed
range of 0 to 120 mph
(Canada: 0 to 200 km/h) if a preceding
vehicle is detected. If no preceding vehicle is
detected the DISTRONIC PLUS functions in a
speed range of 20 to 120 mph
(Canada: 30 to 200 km/h).
Always obey applicable speed limits.
Do not use the DISTRONIC PLUS if you are
driving on a road with steep uphill or downhill
slopes.
When traveling in Canada in a vehicle not
registered in Canada, you must switch off the
radar sensor system ( Y page 236). Canadian
law does not permit the use of the radar
sensor system for vehicles from outside of
Canada. When you switch off the radar sensor
system, the following functions are
deactivated:
R DISTRONIC PLUS
R BAS PLUS ( Y page 64)
R PRE-SAFE ®
Brake ( Y page 69)
R Blind Spot Assist ( Y page 359)
i Due to its radar-emitting nature
DISTRONIC PLUS may have an appearance
similar to a radar detector to law
enforcement officials. You may want to
refer to this section of your Operator’s
Manual when asked.
i USA only:
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
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Rthe radar sensors are switched off
Ryou pull the DISTRONIC PLUS lever in
direction of arrow \000
The DISTRONIC PLUS regulates only the
distance between your vehicle and those
directly ahead of it. It may not register
stationary objects in the road, e.g.:
Ra stopped vehicle in a traffic jam
Ra disabled vehicle
Ran oncoming vehicle
The driver must always be alert, observe all
traffic and intercede as required by means of
steering or braking the vehicle.
GWarning!
The DISTRONIC PLUS should not be used in
snowy or icy road conditions.
The most likely cause for a malfunctioning
system is a dirty sensor (located in the hood
grille and in the bumper), especially at times
of snow and ice or heavy rain.
In such a case, the DISTRONIC PLUS will
switch off, and the message DISTRONIC
PLUS Currently Unavailable See
Oper. Manual appears in the multifunction
display.
For cleaning and care of the sensors, see
(Y page 443).
iIf the message DISTRONIC PLUS
Currently Unavailable See Oper.
Manual disappears during driving and the
last speed stored flashes for approximately
5 seconds, the dirt (e.g. slush) has
dissolved; the DISTRONIC PLUS is available
again.
Another cause might be that the radar
sensors have been manually switched off in
the instrument cluster control system. Please
verify that the radar sensors are switched on
(Y page 236).
Turns and bends
In turns or bends, the DISTRONIC PLUS may
not detect a preceding vehicle, or it may
detect one too soon. This may cause your
vehicle to brake late or unexpectedly.
Offset driving
A vehicle traveling in your lane but offset from
your direct line of travel may not be detected
by the DISTRONIC PLUS. There will be
insufficient distance to the preceding vehicle.
Lane changing
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