134Driving and operatingIgnition switch positions0:ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:accessory power mode: Steering wheel lock released, some
electrical functions are operable,
ignition is off2:ignition on power mode: Ignition
is on, diesel engine is preheating.
Control indicators illuminate and
most electrical functions are
operable3:engine start: Release key after
starting procedure beginsSteering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
Electronic key must be inside the
vehicle.
Accessory power mode
Press Engine Start/Stop once without
operating clutch or brake pedal. The yellow LED in the button illuminates.
Steering wheel lock is released and
some electrical functions are
operable, ignition is off.Ignition on power mode
Press and hold Engine Start/Stop for
six seconds without operating clutch
or brake pedal. The green LED in the button illuminates, diesel engine is
preheating. Control indicators
illuminate and most electrical
functions are operable.Engine start
Operate clutch pedal (manual
transmission) or brake pedal
(automatic transmission) and press
Engine Start/Stop once more.
Release button after starting
procedure begins.Ignition off
Press Engine Start/Stop briefly in
each mode or when engine is running and vehicle is stationary. Some
functions remain active until driver's
door is opened, provided the ignition
was on previously.
Driving and operating135Emergency shut off during driving
Press Engine Start/Stop for longer
than two seconds or press twice
briefly within five seconds 3 136.
Steering wheel lock The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
● The driver's door is opened.
To release steering wheel lock, open
and close driver's door and switch on accessory mode or start the engine
directly.9 Warning
If the vehicle battery is discharged,
the vehicle must not be towed,
tow-started or jump-started as the
steering wheel lock cannot be
disengaged.
Operation on vehicles with
electronic key system in case of
failure
If either the electronic key fails or the
battery of the electronic key is weak,
the Driver Information Centre may
display No Remote Detected or
Replace Battery in Remote Key when
you try to start the vehicle.
1. Place the electronic key in the front cupholder of the centreconsole. Place the electronic key
solely centred in the transmitter
area in longitudinal direction flat
with buttons upside as shown in
the illustration.
2. With the vehicle in P (Park) or N
(Neutral), depress the brake
pedal and press
Engine Start/Stop .
Replace the transmitter battery as
soon as possible.
Retained power off The following electronic systems can
work up to ten minutes after the
engine is turned off
● Power windows
● Sunroof
● Audio system
The power windows and sunroof will
continue to work for up to ten minutes or until any door is opened. The radio
will work in ignition on power mode
and accessory power mode. Once
the ignition is turned off, the radio will
continue to work for ten minutes, or
until the driver's door is opened.
136Driving and operatingStarting the engine
Vehicles with ignition switch
Turn key to position 1 to release the
steering wheel lock.
Manual transmission: depress clutch and brake pedal.
Automatic transmission: depress
brake pedal and move the selector
lever to P or N.
Do not depress the accelerator pedal.
Diesel engine: turn the key to position2 for preheating and wait until control
indicator ! extinguishes.
Turn the key briefly to position 3 and
release: an automatic procedure operates the starter with a short delay
as long as the engine is running, see
'Automatic Starter Control'.
Manual transmission: during an
Autostop, the engine can be restarted
by depressing the clutch pedal
3 137.
Automatic transmission: during an
Autostop, the engine can be restarted
by releasing the brake pedal 3 137.
Vehicles with power button
Manual transmission: depress clutch
and brake pedal.
Automatic transmission: depress
brake pedal and move selector lever
to P or N.
Do not depress accelerator pedal.
Press and release Engine Start/Stop:
an automatic procedure operates the starter with a short delay until the engine is running, see automatic
starter control.
Before restarting or to switch off the
engine when vehicle is stationary,
press Engine Start/Stop once more
briefly.
Manual transmission: during an
Autostop, the engine can be restarted
by depressing the clutch pedal
3 137.
Automatic transmission: during an
Autostop, the engine can be restarted
by releasing the brake pedal 3 137.
Key lock release Some vehicles with an automatic
transmission are equipped with an
electronic key lock release system.
The key lock release is designed to
prevent ignition key removal unless
the selector lever is in P.
138Driving and operatingDeactivation
Deactivate the stop-start system
manually by pressing Ï.
Deactivation is indicated when the
LED in the button extinguishes.
Autostop If the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
● Depress the clutch pedal.
● Move the selector lever to neutral.
● Release the clutch pedal.
The engine will be switched off while
the ignition stays on.
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
During an Autostop, the heating
performance, power steering and
brake performance will be
maintained.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled:
● The stop-start system is not manually deactivated.
● The bonnet is fully closed.
● The driver's door is closed or the driver's seat belt is fastened.
● The vehicle battery is sufficiently charged and in good condition.
● The engine is warmed up.
● The engine coolant temperature is not too high.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 126.
140Driving and operating● If the vehicle is on a levelsurface or uphill slope, engage
first gear or set the selector
lever to position P before
removing the ignition key. On
an uphill slope, turn the front
wheels away from the kerb.
If the vehicle is on a downhill
slope, engage reverse gear or
set the selector lever to position
P before removing the ignition
key. Turn the front wheels
towards the kerb.
● Close the windows and the sunroof.
● Remove the ignition key from the ignition switch. For vehicleswith automatic transmission,
the key can only be removed
when the selector lever is in
position P.
Turn the steering wheel until the steering wheel lock is felt to
engage.
● Lock the vehicle.
● Activate the anti-theft alarm system.
Notice
In the event of an accident with airbag deployment, the engine is
turned off automatically if the vehicle
comes to a standstill within a certain
time.Engine exhaust9 Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Driving and operating143The selector lever is locked in P and
can only be moved when the ignition
is on and the brake pedal is applied.
To engage P or R, press the release
button.
The engine can only be started with
the lever in position P or N. When
position N is selected, press the brake
pedal or apply the parking brake
before starting.
Do not accelerate while engaging a
gear. Never depress the accelerator
pedal and brake pedal at the same
time.
When a gear is engaged, the vehicle
slowly begins to creep when the
brake is released.
Engine braking To utilise the engine braking effect,select a lower gear in good time when
driving downhill, see manual mode.
Rocking the vehicle
Rocking the vehicle is only
permissible if the vehicle is stuck in
sand, mud or snow. Move the selector
lever between D and R in a repeat
pattern. Do not race the engine and
avoid sudden acceleration.
Parking
Apply the parking brake and engage
P .
The ignition key can only be removed
when the selector lever is in position
P .Manual mode
Move selector lever to position M.
Press button on the selector lever:
<:shift to a higher gear]:shift to a lower gear
If a higher gear is selected when
vehicle speed is too low, or a lower
gear when vehicle speed is too high,
the shift is not executed. This can
cause a message in the Driver
Information Centre.
In manual mode no automatic shifting to a higher gear takes place at high
engine revolutions.
144Driving and operatingGear shift indication
The symbol R with a number beside
it is indicated when gearshifting is
recommended for fuel saving
reasons.
Shift indication appears only in
manual mode.
Electronic driving programmes
● Following a cold start, the operating temperature
programme increases engine
speed to quickly bring the
catalytic converter to the required
temperature.
● The automatic neutral shift function automatically shifts to
idling when the vehicle is stopped
with a forward gear engaged and the brake pedal is pressed.
● Special programmes automatically adapt the shifting
points when driving up inclines or
down hills.Automatic transmission
adaptation feature
This feature adapts transmission
operation during constant driving or
gear shifting. It increases durability
and keeps best shift quality over the
life cycle. You may perceive shifting
at initial mileage as uncomfortable,
but this is normal. Shift quality will be
improved gradually by constant
driving at each gear and gear shifting.
Kickdown
If the accelerator pedal is pressed
down completely in automatic mode, the transmission shifts to a lower gear
depending on engine speed.
Fault
In the event of a fault, a vehicle
message is displayed in the Driver
Information Centre. Vehicle
messages 3 102.
The transmission no longer shifts
automatically. Continued travel is possible with manual shifting.Only the highest gear is available.
Depending on the fault, second gear
may also be available in manual
mode. Shift only when vehicle is at a
standstill.
Have the cause of the fault remedied
by a workshop.
Interruption of power supply In the event of an interruption of
power supply, the selector lever
cannot be moved out of the P
position. The ignition key cannot be
removed from the ignition switch.
If the battery is discharged, start the
vehicle using jump leads 3 209.
If the battery is not the cause of the fault, release the selector lever.
1. Keep the brake pedal depressed and pull the parking brake lever
up.
Driving and operating1499Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 93.
Deactivation
TC can be switched off when spinning of drive wheels is required: press b
briefly.
Control indicator k illuminates.
A status message appears in the
Driver Information Centre when TC is
deactivated.
When TC is deactivated, ESC
remains active but with higher control threshold.
TC is reactivated by pressing b
again. A status message pops up in the Driver Information Centre when
TC is reactivated.
TC is also reactivated the next time
the ignition is switched on.
Fault
If there is a fault in the system the
control indicator b illuminates
continuously and a message appears in the Driver Information Centre. The
system is not operational.
Have the cause of the fault remedied
by a workshop.
Electronic Stability Control
Electronic Stability Control (ESC)
improves driving stability when
necessary, regardless of the type of
road surface or tyre grip.
As soon as the vehicle starts to
swerve (understeer/oversteer),
engine output is reduced and the wheels are braked individually.
ESC operates in combination with the Traction Control system (TC). It
prevents the drive wheels from
spinning.
ESC is operational after each engine
start as soon as the control indicator
b extinguishes.
When ESC operates b flashes.