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three seconds. This functio
noperates
independently from the ECO start/stop
automatic engine switch-off function.
Key positions with KEYLESS-GO As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. If an indicator lamp does not go out after
starting the engine or lights up while driving,
see (Y
page 239).
X Insert Start/Stop button :into ignition
lock ;.
i When you insert Start/Stop button :
into ignition lock ;, the system needs
approximately two seconds recognition
time. You can then use Start/Stop
button :.
Activating power supply
X If Start/Stop button :has not yet been
pressed, this corresponds to the key being
removed from the ignition.
X Press Start/Stop button :once.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
i The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :twice
when in this position. switch on the ignition.
X
Press Start/Stop button :twice.
The ignition is switched on.
i The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :once
when in this position. Start/Stop button
=
USA only
? Canada only Starting the engine
Important safety notes G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation.
! Do not depress the accelerator pedal
when starting the engine.
General notes i
Vehicles with agasoline engine: the
catalytic converter is preheated for up to
30seconds after a cold start. The sound of
the engine may change during this time. 150
DrivingDriving and parking
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Automatic transmission
X
Shift the transmission to position
P(Y page 154).
The transmission position display in the
multifunction display shows P.
i You can also start the engine when the
transmission is in position N.
Starting procedure with the SmartKey X
To star tagasoline engine: turn the key
to position 3in the ignition lock
(Y page 149) and release it as soon as the
engine is running.
X To start adiesel engine: turn the key to
position 2in the ignition lock
(Y page 149).
The % preglow indicator lamp in the
instrumen tcluster lights up.
X When the %preglow indicator lamp
goes out, tur nthe key to position
3(Y page 149) in the ignition lock and
release it as soon as the engine is running.
i You can start the engine without preglow
if the engine is warm.
i To start the engine using the SmartKey
instead of KEYLESS-GO, pull the Start/
Stop button out of the ignition lock.
Using KEYLESS-GO to startt he engineG
WARNING
As long as the SmartKey is in you rvehicle, the
vehicle can be started. Therefore, never leave
children unattended in the vehicle, as they
could otherwise accidentally start the engine.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Do
not leave children unattended in the vehicle,
or with access to an unlocked vehicle. A
child's unsupervised access to a vehicle could
result in an acciden tand/o rserious personal
injury. X
Depress the brake pedal and keep it
depressed.
X To star tagasoline engine: press the
Start/Stop button (Y page 149) once.
The engine starts.
X To start adiesel engine: press the Start/
Stop button (Y page 149) once.
Preglow is activated and the engine starts.
i If the engine is warm, the preglow time is
shortened.
i The Start/Stop button can be used to
star tthe vehicle without inserting the
SmartKey into the ignition lock. The Start/
Stop button must be inserted into the
ignition lock and the SmartKey must be in
the vehicle. Pulling away
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R, the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate.
! If a warning tone sounds and the
Release Park. Brake message appears
in the multifunction display, the parking
brake is still applied. Release the parking
brake.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R.
X Release the parking brake (Y page 167).
X Release the brake pedal.
X Carefully depress the accelerator pedal.
i It is only possible to shift the transmission
from position Pto the desired position if
you depress the brake pedal. Only then is Driving
151Driving and parking Z
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the parking lock released. If you do not
depress the brake pedal, yo
ucan move the
DIRECT SELECT lever but the parking lock
remains engaged.
i The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate th eautomatic
locking feature (Y page 209).
i Upshifts take place at higher engine
speeds after a cold start .This helps the
catalytic converter to reach its operating
temperature more quickly.
Hill starta ssist G
WARNING
After a short time, hill start assist will no
longer brake your vehicle and it could roll
away. There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
X Take your foot off the brake pedal.
The vehicle is then held for about a second.
X Pull away.
Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient.
It holds the vehicle for a short time after you
have removed your foot from the brake pedal.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal
and to depress it before the vehicle begins to
roll.
Hill start assist will not function if:
R you are pulling away on a level road or on
a downhill gradient.
R the transmission is in position N.
R the parking brake is applied.
R ESP ®
is malfunctioning. 152
DrivingDriving and parking
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Problems with the engine
Problem Possible causes/consequences and
M Solutions
The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Before attempting to start the engine again, turn the SmartKey
in the ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrumen tcluster go
out.
X Try to start the engine again (Y page 150). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X
Jump-star tthe vehicle (Y page 304).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. Vehicles with a
gasoline engine:
The engine is not
running smoothly and
is misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it. The coolant
temperature gauge
shows a value above
248 ‡ (120 †). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 287). Observe the warning
notes as you do so and add coolant if necessary. Driving
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Automatic transmission
Important safety notes
G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R, the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
no tsimultaneously accelerate. G
WARNING
The automatic transmission switches to
neutral position Nwhen you switch off the
engine. The vehicle may roll away. There is a
risk of an accident.
After switching off the engine, always switch
to parking position P. Prevent the parked
vehicle fro mrolling away by applying the
parking brake. DIRECT SELECTl
ever
Overview of transmission positions P
Park position with parking lock
R Reverse gear
N Neutral
D Drive
The DIRECT SELECT lever is on the rightoft he
steering column.
i The DIRECT SELECT lever always returns
to its original position. The current transmission position
P,R, Nor Dappears
in the transmission position display
(Y page 155) in the multifunction display.
Engaging parkp osition P !
If the engine speed is to ohigh or the
vehicle is moving, do not shift the
automatic transmission directly from Dto
R, from Rto Dor directly to P.The
automatic transmission could otherwise be
damaged. P
Park position with parking lock
R Reverse gear
N Neutral
D Drive
X Push the DIRECT SELECT lever in the
direction of arrow P.
i The automatic transmission shifts into
park position Pautomatically:
R if you open the driver's door while the
vehicle is stationary in transmission
position Dor R
R if you open the door while traveling at
very low speeds in transmission position
D or R
Engaging reverse gear R !
Only shift the automatic transmission to
R when the vehicle is stationary. 154
Automatic transmissionDriving and parking
Page 158 of 364

X
When the vehicle is stationary, depress the
brake pedal.
X Push the DIRECT SELECT lever up past the
first point of resistance.
Shifting to neutral N G
WARNING
When leaving the SmartKey in the starter
switch, do not leave children unattended in
the vehicle. It is possible for children to switch
on the ignition which could result in
unsupervised use of vehicle equipment.
Unsupervised use of vehicle equipment could
result in an accident and/or serious personal
injury.
X When the vehicle is stationary, depress the
brake pedal.
X Push the DIRECT SELECT lever up or down
to the first point of resistance.
If the engine has been switched off, the
automatic transmission automatically
switches to N.
If you want the automatic transmission to
remain in neutral N, e.g. when having the
vehicle cleaned in an automatic car wash with
a towing system, observe the following notes:
Using the SmartKey:
R make sure that the ignition is switched on.
R when the vehicle is stationary, depress the
brake pedal and keep it depressed.
R shift to neutral N.
R release the brake pedal.
R if the parking brake is engaged, release it.
R switch off the ignition and leave the
SmartKey in the ignition lock.
Using KEYLESS-GO:
R make sure that the ignition is switched on.
R when the vehicle is stationary, depress the
brake pedal and keep it depressed.
R engage park position P.
R release the brake pedal. R
remove the Start/Stop button from the
ignition lock.
R insert the SmartKey into the ignition lock.
R switch on the ignition.
R depress the brake pedal and keep it
depressed.
R shift to neutral N.
R release the brake pedal.
R if the parking brake is engaged, release it.
R switch off the ignition and leave the
SmartKey in the ignition lock.
Engaging drive position D X
When the vehicle is stationary, depress the
brake pedal.
X Push the DIRECT SELECT lever down past
the first point of resistance. Transmission position display
:
Transmission position
The curren ttransmission position is shownin
the multifunctio ndisplay.
i The arrows in the transmission position
display show how and into which
transmission positions you can change
using the DIRECT SELECT lever. Automatic transmission
155Driving and parking Z
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Transmission positions
B
Park position
Do not shift the transmission into
position
P(Ypage 166) unless the
vehicle is stationary. The parking
lock should not be used as a brake
when parking .Always apply the
electronic parking brake in
additio nto the parking lock in order
to secure the vehicle.
If the vehicle electronics are
malfunctioning, the transmission
may be locked in position P. Have
the vehicle electronics checked
immediately at a qualified
specialist workshop.
The automatic transmission shifts
to Pautomatically if you:
R remove the SmartKey
R switch off the engine when in R
or Dand open one of the front
doors C
Reverse gear
Only shift the transmission to
R
when the vehicle is stationary. A
Neutral
Do not shift the transmission to
N
while driving. Otherwise, the
automatic transmission could be
damaged.
No power is transmitted from the
engine to the drive wheels.
Releasing the brakes will allow you
to move the vehicle freely, e.g. to
push it or tow it.
If ESP ®
is deactivated or faulty:
only shift the transmission to
position Nif the vehicle is in danger
of skidding, e.g. on icy roads.
If you switch off the engine using
the SmartKey or the Start/Stop
button, the automatic transmission
shifts to neutral Nautomatically.
! Rolling in neutral Ncan damage
the drive train. 7
Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Changing gear
The automatic transmission shifts to the
individual gears automatically when it is in
transmission position D.This automatic
gearshifting behavior is determined by:
R a shift range restriction, if selected
R the selected drive program:
E/S (Ypage 157)
R the position of the accelerator pedal
R the road speed 156
Automatic transmissionDriving and parking
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Driving tips
Kickdown Use kickdown for maximum acceleration:
X
Depress the accelerator pedal beyond the
pressure point.
The transmissions hifts to a lower gear
depending on the engine speed.
X Ease off the accelerator pedal once the
desired speed is reached.
The automatic transmission shifts back up.
Rocking the vehicle free Shifting the transmission repeatedly between
gears
Dand Rmay help to free the vehicle if
it has become stuck in slush or snow. The
vehicle's engine management restricts
repeated shifting between gears up to a
maximum speed of 5 mph (9 km/h). To shift
back and forth between transmission
positions Dand R, move the selector lever up
and down beyond the pressure point.
Towing atrailer X
When towing a trailer and driving downhill,
shift to the lowe rgear if the automatic
transmission constantly shifts between
two gears.
X Engaging a lower gear and reducing the
speed reduces the risk of the engine
overheating. Program selector button
General notes Program selector button
X
Press program selector button :
repeatedly until the letter for the desired
gearshift program appears in the
multifunction display.
The program selector button allows you to
choose between differen tdriving
characteristics. E
Economy Comfortable, economical
driving
S
Sport Sporty driving style
i
For further information on the automatic
drive program, see (Y page 158). Steering wheel paddle shifters
:
Left-hand steering wheel paddle shifter
; Right-hand steering wheel paddle shifter Automatic transmission
157Driving and parking Z