363 Controls in detail
Driving and parking
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.
Check the coolant level and add cool-
ant if necessary (
page 497).
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:
Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the
major assemblies
fuel system
engine mount:
Start the engine in the usual manner.
Parking
i
Excessive coolant temperatures trigger a
warning message in the multifunction display
(
page 588).
Warning!
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:
Press the parking brake handle.
Shift the automatic transmission to P.
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 317).
Take the SmartKey or the SmartKey with
KEYLESS-GO* with you and lock vehicle
when leaving.
365 Controls in detail
Driving and parking
Manually engaging electric parking
brake
Press handle1.
The red indicator lamp 0 (USA only)
or ! (Canada only) in the instru-
ment cluster comes on.
Automatically engaging electric parking
brake
Your vehicle’s electric parking brake is au-
tomatically engaged when DISTRONIC
Plus* (
page 385) brings your vehicle to a
standstill and at least one of the following
conditions is met:
The engine is switched off
The driver’s door is opened and the
seat belt is not inserted in the belt
buckle
The hood is released
The trunk lid is open while gear R is en-
gaged
The vehicle is parked for an extended
period
The red indicator lamp 0 (USA only) or
! (Canada only) in the instrument clus-
ter comes on.
Emergency braking with electric park-
ing brake
In an emergency situation, you can also
brake your vehicle while driving by using
the electric parking brake.
While driving, press handle for electric
parking brake (
page 364).During the braking procedure, the red indi-
cator lamp 0 (USA only) or !
(Canada only) flashes in the instrument
cluster, the message “Please release park-
ing brake” appears on the multifunction
display and you will hear a warning tone.
Once the vehicle comes to a complete stop
the electronic parking brake will engage.
Turning off the engine
i
When parked on an incline, turn front wheels
towards the road curb.
i
You can also engage the electric parking
brake when the SmartKey is removed from the
starter switch.
i
In addition to the electric parking brake,
park position P can be automatically engaged.
i
Your vehicle will be braked for as long as you
press and hold the switch for the electric parking
brake. The longer you keep the electric parking
brake pressed, the more strongly your vehicle
will be braked. This method occurs on all
4 wheels, not just the rear wheels.
Warning!
G
Do not turn off the engine before the vehicle
has come to a complete stop. With the en-
gine not running, there is no power assis-
tance for the brake and steering systems. In
this case, it is important to keep in mind that
a considerably higher degree of effort is nec-
essary to brake and steer the vehicle.i
With the SmartKey removed from the starter
switch or the engine turned off with
KEYLESS-GO* and the driver’s door open, a
warning sounds if the parking lamps or low beam
366 Controls in detailDriving and parking
Shift the automatic transmission toP.
Turning off with SmartKey
Turn the SmartKey in the starter switch
to position0 (
page 315) and remove
it.
The immobilizer is activated.Turning off with KEYLESS-GO*
Press the KEYLESS-GO start/stop
button (
page 317) to turn off the en-
gine.
With the driver’s door closed, the start-
er switch is now in position1. With the
driver’s door opened, the starter switch
is set to position0, same as SmartKey
removed from starter switch
(
page 315).
Releasing seat belts
Press the seat belt release button
(page 340).
Allow the retractor to completely re-
wind the seat belt by guiding the latch
plate.
headlamps are switched on.
The message: “Please switch off lights” appears
in the multifunction display.i
When parked on an incline, also turn front
wheels towards the road curb.
i
If the engine can no longer be stopped using
the SmartKey or KEYLESS-GO*, the engine can
be turned off by withdrawing two fuses. For more
information, see “Emergency engine shut-down”
(
page 648).
i
If you turn off the engine using the SmartKey
and remove the SmartKey from the starter
switch with the automatic transmission in a posi-
tion other than P, the transmission will automat-
ically shift toP.
Keep in mind that turning off the engine with the
SmartKey alone will not automatically shift the
transmission to P.Only when the SmartKey is removed from the
starter switch will the transmission automatical-
ly shift to P.
i
In an emergency you can turn off the engine
while driving by pressing and holding the
KEYLESS-GO start/ stop button for approxi-
mately 3 seconds.
i
If you turn off the engine using the
KEYLESS-GO start/stop button and open the
driver’s door with the automatic transmission in
a position other than P, the transmission will au-
tomatically shift toP.Keep in mind that turning off the engine with the
KEYLESS-GO start/stop button alone will not au-
tomatically shift the transmission to P. Only
when the driver’s door is opened will the trans-
mission automatically shift to P.
i
If you drive through an automatic conveyor
type car wash, you can switch on the ignition
with the KEYLESS-GO button and engage gear N
or insert the SmartKey into the starter switch.
!
M a k e s u r e t h e s e a t b e l t r e t r a c t s f u l l y s o t h a t
the seat belt and/or latch plate cannot get
caught or pinched in the door or in the seat
mechanism. This can damage the seat belt and
impair the effectiveness of the seat belt, and/or
cause damage to the door and/or door trim pan-
el. Such damage is not covered by the
Mercedes-Benz Limited Warranty.
Damaged seat belts must be replaced. Contact
an authorized Mercedes-Benz Center.
370 Controls in detailAutomatic transmissionAutomatic transmission positions
The current automatic transmission posi-
tion appears in the tachometer display.
1Current automatic transmission posi-
tion!
If the automatic transmission position fails
in the tachometer display, you should check
whether the gear selector lever is placed in the
desired position while driving off with added cau-
tion. We recommend you to shift the gear selec-
tor lever to positionD. Do not limit the gear
range.
Effect
ì
Park position
Shift into park positionP only
when vehicle is stopped. The
park position is not intended to
serve as a brake when the vehi-
cle is parked. Rather, the driver
should always set the electric
parking brake in addition to shift-
ing into park positionP to secure
the vehicle.
If the vehicle’s electrical system
is malfunctioning, the automatic
transmission could remain
locked in park positionP.
Have the vehicle checked as
soon as possible by an autho-
rized Mercedes-Benz Center.
!
SmartKey:
If you turn off the engine using the SmartKey and
remove the SmartKey from the starter switch,
the automatic transmission will shift to park
positionP automatically. Keep in mind that turn-
ing off the engine with the SmartKey alone will
not automatically shift the automatic transmis-
sion to park positionP. Only when the SmartKey
is removed from the starter switch, will the auto-
matic transmission automatically shift to park
positionP.
KEYLESS-GO*:
If you turn off the engine using the KEYLESS-GO
start/stop button and open the driver’s door, the
automatic transmission will shift to park
positionP automatically. Keep in mind that turn-
ing off the engine using the KEYLESS-GO
start/stop button alone will not automatically
shift the automatic transmission to park
positionP. Only when the driver’s door is
opened, will the automatic transmission auto-
matically shift to park positionP.
DISTRONIC Plus*:
the transmission will shift to park positionP au-
tomatically, only when DISTRONIC Plus brings
your vehicle to a standstill, and when it meets at
least one of the following conditions at the same
time:
the engine is turned off
the driver’s or passenger door opens and the
seat belt is not engaged in the buckle
In addition to shifting to park positionP, the elec-
tric parking brake will be engaged automatically.
371 Controls in detail
Automatic transmission
Even though this is possible, make it a practice
to always shift into park positionP before turning
off the engine and remove the SmartKey from
the starter switch, or when using KEYLESS-GO*,
before turning off the engine with the start/stop
button and opening the driver’s door.!
If you want the gear position to remain in
neutral positionN (for example when the vehicle
is pulled through a car wash)
do not remove the SmartKey from the starter
switch
or, when using KEYLESS-GO*
do not turn off the engine using the
KEYLESS-GO start/stop button* and open
the driver’s door
Otherwise, the automatic transmission will shift
to park positionP and lock the wheels, prevent-
ing the vehicle from being pulled through a car
wash.
Effect
í
Reverse gear
Shift into reverse gearR only
when the vehicle is stopped.
ë
Neutral
No power is transmitted from the
engine to the drive axle. When
the brakes are released, the
vehicle can be moved freely
(pushed or towed).
To avoid damage to the automat-
ic transmission, avoid shifting
into neutral positionN while
driving.
If the ESP
® is deactivated or
malfunctioning:
Shift into neutral positionN only
if the vehicle is in danger of
skidding, e.g. on icy roads.
ê
Drive
The automatic transmission
shifts automatically. All forward
gears are available.
!
Coasting the vehicle, or driving for any other
reason in neutral positionN can result in auto-
matic transmission damage that is not covered
by the Mercedes-Benz Limited Warranty.
Warning!
G
Getting out of your vehicle without shifting
into park positionP is dangerous. Also, park
positionP alone is not intended to or capa-
ble of preventing your vehicle from moving,
possibly hitting people or objects.
Always set the electric parking brake in
addition to shifting to park positionP
(page 364).
When parked on an incline, turn the front
wheels towards the road curb.
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.
375 Controls in detail
Automatic transmission
1Current program mode
Press program mode selector switch
repeatedly until the letter of the
desired program mode appears in the
tachometer display.Program modeC:
Engine, automatic transmission and
suspension tuning are comfortable.
The vehicle starts out in second
gear (both forward and reverse) for
gentler starts. This does not apply if
full throttle is applied or gear
range1 is selected.
Traction and driving stability are
improved on icy roads.
Upshifts occur earlier even when
you give more gas. The engine then
operates at lower rpms and the
wheels are less likely to spin.
Program modeS:
Engine, automatic transmission and
suspension tuning are more perfor-
mance oriented.
The vehicle starts out in first gear.
Upshifts occur later.
Steering wheel gearshift control
With drive positionD selected, you can
limit or extend the gear range.
The steering wheel gearshift buttons are
located on the back of the steering wheel
to the left and right.
!
Never change the program mode when the
automatic transmission is out of park positionP.
This could result in a change of driving character-
istics for which you may not be prepared.
i
The last selected program mode (CorS) is
switched on when the engine is restarted.
!
Allow engine to warm up under low load use.
Do not place full load on the engine until the op-
erating temperature has been reached.
Shift into reverse gearR or park positionP only
when the vehicle is stopped.
Avoid spinning of a drive wheel for an extended
period when driving off on slippery road surfac-
es. This may cause serious damage to the driv-
etrain which is not covered by the
Mercedes-Benz Limited Warranty.
377 Controls in detail
Automatic transmission
Emergency operation (Limp-Home Mode)
If vehicle acceleration becomes less re-
sponsive or sluggish or the automatic
transmission no longer shifts, the automat-
ic transmission is most likely operating in
limp-home (emergency operation) mode.
In this mode only second gear and reverse
gear can be selected.
Stop the vehicle in a safe location.
Shift to park positionP.
Turn off the engine.
Wait at least 10 seconds before
restarting.
Restart the engine.
Shift to drive positionD (for second
gear) or reverse gearR.
Have the automatic transmission
checked at an authorized
Mercedes-Benz Center as soon as pos-
sible.
392 Controls in detailDriving systemsStarting off
When the vehicle in front of you starts off:
Remove your foot from the brake
pedal.
Pull DISTRONIC Plus lever briefly in di-
rection of arrow4.
or
Briefly step on the accelerator pedal.
Your vehicle starts off and adapts its speed
to the vehicle in front of you.
Driving
If no vehicle is driving ahead of you, DIS-
TRONIC Plus functions like cruise control
(
page 380).
When DISTRONIC Plus detects that the ve-
hicle in front of you is driving more slowly,
it brakes the vehicle in order to keep the
distance specified by you.
When DISTRONIC Plus detects that the ve-
hicle in front of you is driving faster, the ve-
hicle accelerates up to the set speed.Stopping
When DISTRONIC Plus detects that the ve-
hicle in front of you is stopping, the vehicle
brakes until it also stops.
Warning!
G
When you step on the brake pedal, you
switch off DISTRONIC Plus except when the
vehicle is at a standstill. DISTRONIC Plus will
no longer brake your vehicle. You are always
responsible for maintaining a distance from
other vehicles, observing road speeds and
braking well in advance.Warning!
G
DISTRONIC Plus’s braking effect is canceled
and the vehicle can start to roll if
DISTRONIC Plus is switched off using
the DISTRONIC Plus lever
you accelerate
the system or the power supply is mal-
functioning, e.g. due to battery failure
the electrical components in the engine
compartment or the fuses have been
manipulated
the battery is disconnected
Warning!
G
Never get out of the vehicle while DISTRON-
IC Plus is switched on!
DISTRONIC Plus must never be operated or
switched off by passengers or from outside
the vehicle.
DISTRONIC Plus is not a substitute for the
electric parking brake and may not be used
for parking.
When you get out of the vehicle or switch off
the engine, deactivate DISTRONIC Plus and
secure the vehicle from rolling away by en-
gaging the electric parking brake.