302 Control systemsInstrument cluster control systemSwitching on or off radar sensors*
If your vehicle is equipped with DISTRONIC
Plus*, BAS Plus*, or Park Assist* it is
equipped with a radar sensor system
which you can switch on and off.
When travelling in Canada in a vehicle not
registered in Canada, you must switch off
the radar sensor system. Canadian law
does not permit the use of the radar sensor
system for vehicles from outside of Cana-
da. When you switch off the radar sensor
system, the following functions are
deactivated:
BAS Plus* (
page 68)
PRE-SAFE
® Brake* (
page 75)
DISTRONIC Plus* (
page 443)
Park Assist* (
page 467)
Advanced Parking Guidance*
(page 471)
Blind Spot Assist* (
page 485)
Press ( or & to select the “Set-
tings” menu.
Press % or $ to select the “Ra-
dar Sensors” function.
Press #.
Press # again if you would like to
change the current status.
Depending on the previous status, the
radar sensors will be switched on or
off.
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 de-
vice 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.
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Canada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the device will
void any warranties, and is not 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.
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The selected status of the radar sensors re-
mains stored in memory even if the engine is
turned off and restarted.
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The following message appears in the multi-
function display if the radar sensors are
switched off and you attempt to activate
DISTRONIC Plus*, Park Assist* or PRE-SAFE
®
Brake*:
“Radar Sensors
(See Oper. Manual)
Disabled”
315 Control systems
Voice Control navigation
Voice Control navigation
Important notesWarning!
G
For safety reasons, you should only select a
destination when the vehicle is stationary.
While the navigation system provides direc-
tional assistance, the driver must remain fo-
cused 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 ob-
servance always remains in the driver’ per-
sonal responsibility. DVD 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 13.5 m) every second.
During route guidance, you will not receive
information on:
traffic lights
stop and yield signs
parking or stopping zones
one-way streets
narrow bridges, or
other traffic regulation data.
You should therefore always strictly observe
traffic regulations while driving. Drive care-
fully and always obey traffic laws and road
signs, even if they contradict navigation sys-
tem instructions.
Warning!
G
Please do not use the Voice Control System
in an emergency, as the tone of your voice
may change in a stressful situation. This
could cause a delay in completing your
phone call in a timely manner. This could
distract you in an emergency situation and
cause you to be involved in an accident.
Warning!
G
Navigation announcements are intended to
direct you while driving without diverting
your attention from the road and driving.
Please always use this feature instead of
consulting the map display for directions.
Consulting the symbols or map display for
directions may cause you to divert your at-
tention from driving and increase your risk
of an accident.
408 Controls in detailDriving and parking
Do not depress accelerator.
Press KEYLESS-GO start/stop button
once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off the en-
gine” (
page 415).Starting difficulties
The engine does not start. You can hear
the starter.
There could be a malfunction
in the engine electronics, or
in the fuel supply system
Carry out the following steps:
If you are starting the engine with the
SmartKey: Turn SmartKey in starter
switch to position0 and repeat starting
procedure.
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO*.
or
Remove the KEYLESS-GO* start/stop
button from starter switch.
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Repeat the starting procedure
(page 406).
If the engine does not start after several
starting attempts:
Call Roadside Assistance.
Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
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You can also start the engine with the auto-
matic transmission set to neutral positionN.
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If you wish to start the vehicle with the
SmartKey instead of the KEYLESS-GO feature,
remove the KEYLESS-GO start/stop button from
the starter switch and proceed as described in
“Starting with the SmartKey” (
page 407).
!
Remember that extended starting attempts
can drain the battery.
409 Controls in detail
Driving and parking
The engine does not start. You cannot
hear the starter.
The battery may not be sufficiently
charged.
Have the vehicle jump-started
(page 707).
If the engine will not start despite a jump
start:
Call Roadside Assistance.
Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
Driving off
Depress the brake pedal.
The gear selector lever can now be
used.
Shift the automatic transmission to
drive positionD or reverse gearR.
Release the brake pedal.
Carefully depress the accelerator
pedal.
The electronic parking brake is auto-
matically released (
page 412).
The red brake warning lamp 0
(USA only) or ! (Canada only) in the
instrument cluster goes out.After a cold start, the automatic transmis-
sion shifts at a higher engine revolution.
This allows the catalytic converter to reach
its operating temperature earlier.
i
Wait for the gear selection process to com-
plete before setting the vehicle in motion.
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Shifting from park position P to reverse
gearR, neutral positionN, or drive positionD is
only possible with the brake pedal depressed.
Without the brake pedal depressed, the gear se-
lector lever can be moved, but the parking pawl
remains engaged, not allowing shifting to occur.
!
If you hear a warning signal, the red indica-
tor lamp 0 (USA only) or ! (Canada only)
in the instrument cluster flashes and the mes-
sage “Please Release Parking Brake” appears in
the multifunction display when driving off, you
are driving with the electronic parking brake en-
gaged, or you are carrying out an emergency
brake application with the electronic parking
brake.
Release the electronic parking brake
(
page 412).
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Once the vehicle is in motion, the automatic
central locking system engages and the locking
knobs in the doors move down.
The automatic door lock feature can be deacti-
vated (page 263).
You can open a locked door from the inside.
Open door only when conditions are safe to do
so.
411 Controls in detail
Driving and parking
Problems while driving
The engine runs erratically and misfires
An ignition cable may be damaged.
The engine electronics may not be op-
erating properly.
Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.The coolant temperature is above
248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle in a safe location as
soon as possible and turn off the en-
gine. Allow engine and coolant to cool
off.
Check the coolant level and add cool-
ant if necessary (
page 559).In case of accident
If the vehicle is leaking gasoline:
Do not start the engine under any cir-
cumstances.
Move away from vehicle.
Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:
Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
If no damage can be determined on the
major assemblies
fuel system
engine mount:
Start the engine in the usual manner.
i
To signal minor directional changes such as
changing lanes, press combination switch only
to point of resistance and release. The corre-
sponding turn signals will flash three times.
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Excessive coolant temperatures trigger a
warning message in the multifunction display
(
page 622).
412 Controls in detailDriving and parkingParking
Electronic parking brakeWarning!
G
With the engine not running, there is no
power assistance for the brake and the
steering systems. In this case, it is impor-
tant to keep in mind that a considerably
higher degree of effort is necessary to brake
and steer the vehicle.
Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay, or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
To reduce the risk of personal injury as a re-
sult of vehicle movement, before turning off
the engine and leaving the vehicle always:
Keep right foot on brake pedal.
Engage electronic parking brake.
Shift the automatic transmission to park
position P.
Slowly release brake pedal.
When parked on an incline, turn front
wheels towards the road curb.
Turn the SmartKey to starter switch
position0 and remove, or press
KEYLESS-GO* start/stop button
(page 366).
Take the SmartKey or the SmartKey with
KEYLESS-GO* with you and lock vehicle
when leaving.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Children could release the
electronic parking brake and/or shift the
automatic transmission out of park
positionP, either of which could result in an
accident and/or serious personal injury.
425 Controls in detail
Automatic transmission
Rocking the vehicle
Rocking the vehicle by shifting between
drive positionD and reverse gearR can
help free a vehicle stuck in mud or snow.
The engine control system of this vehicle
electronically limits shifting between drive
positionD and reverse gearR to very low
speeds, i.e. approximately 5 mph
(9 km/h). To shift between drive
positionD and reverse gearR, move the
gear selector lever past the resistance
point up or down.
Working on the vehicleHill start assist system
On uphill grades with a gradient angle of
more than 5°, the hill start assist system
maintains the pressure in the brake sys-
tem for approximately 1 second after you
have released the brake pedal. Therefore,
you can start off smoothly without the
vehicle moving immediately after releasing
the brake pedal.The hill start assist system is inactive
when starting off on a level road or
downhill grades
with the transmission in neutral
position N
with the electronic parking brake en-
gaged
if the ESP
® has switched off due to a
malfunction
Warning!
G
When working on the vehicle, engage the
electronic parking brake and shift to park
positionP. Otherwise the vehicle could roll
away.
Warning!
G
The hill start assist system is not designed
to function as an electronic parking brake
and does not prevent the vehicle from mov-
ing when parked on an incline.
Always engage the electronic parking brake
in addition to shifting to park positionP.
437 Controls in detail
Driving systems
Driving systems
The driving systems of your vehicle are de-
scribed on the following pages:
Cruise control (
page 437) and
DISTRONIC Plus*(page 443), with
which the vehicle can maintain a preset
speed.
ABC (
page 461) adjusts the vehicle
suspension characteristics automati-
cally and control the vehicle level.
Parktronic* (
page 463), Park Assist*
(
page 467) and Advanced Parking
Guidance* (
page 471), which serve
as a parking assistant.
Rear View Camera* (
page 477) are
electronic and visual parking aids.
Night View Assist* (
page 481) illumi-
nates the road with infrared light in
addition to the normal headlamps.
Blind Spot Assist* (
page 485) de-
tects and warns you about vehicles in
your blind spot.For information on the ABS, Adaptive
Brake, BAS, BAS Plus*, EBP, ESP
® and
PRE-SAFE
® Brake*, see “Driving safety
systems” (page 65).
Cruise control
The cruise control automatically maintains
the speed you set for your vehicle.
The use of the cruise control is recom-
mended for driving at a constant speed for
extended periods of time.
You can set or resume the cruise control at
any speed over 20 mph (30 km/h).
The cruise control function is operated by
means of the cruise control lever.
Warning!
G
The cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only use the cruise control if the road,
traffic, and weather conditions make it
advisable to travel at a constant speed.
The use of the cruise control can be dan-
gerous on winding roads or in heavy traf-
fic because conditions do not allow safe
driving at a constant speed.
The use of the cruise control can be dan-
gerous on slippery roads. Rapid changes
in tire traction can result in wheel spin
and loss of control.
Deactivate the cruise control when
driving in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.