122Driving 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:ignition on power mode: ignition
is on, control indicators illuminate and most electrical functions are
operable2:engine start: release key after
engine has been started
Steering 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
The electronic key must be inside the
vehicle.
Ignition on power mode without
starting the engine
Press Start/Stop without operating a
pedal. Control indicators illuminate
and most electrical functions are
operable.Engine start
Operate the clutch pedal, the brake
pedal and press Start/Stop. Release
the button after starting procedure
begins.Engine and ignition off
Press 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.
Emergency shut off during driving
If the engine needs to be switched offduring driving in case of emergency,
press Start/Stop for 5 seconds.
9Danger
Switching off the engine during
driving may cause loss of power
support for brake and steering
systems. Assistance systems and
airbag systems are disabled.
Lighting and brake lights will
extinguish. Therefore power down
Driving and operating123the engine and ignition while
driving only when required in case
of emergency.
Steering wheel lock
The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
To release steering wheel lock, open
and close driver's door and switch the
ignition on power 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 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.
Hold the electronic key with buttons
outside at the marking on the steering column cover as shown in the
illustration.
Operate the clutch pedal, the brake
pedal and press Start/Stop. Release
the button after starting procedure begins.
This option is intended for
emergencies only. Replace the
electronic key battery as soon as
possible 3 22.
For unlocking or locking the doors,
see fault in radio remote control unit
or electronic key system 3 23.
Starting the engine
Vehicles with ignition switch
● Turn key to position 1.
● Move the steering wheel slightly to release the steering wheel
lock.
● Manual transmission: operate clutch and brake pedal.
● Automatic transmission: operate brake pedal and move selector
lever to P or N.
Driving and operating127Restart of the engine by the stop-start system
The selector lever must be in neutral
to enable an automatic restart.
If one of the following conditions
occurs during an Autostop, the
engine will be restarted automatically by the stop-start system:
● The stop-start system is manually deactivated.
● The driver's seat belt is unfastened or the driver's door is
opened.
● The engine temperature is too low.
● The charging level of the vehicle battery is below a defined level.
● The brake vacuum is not sufficient.
● The climate control system requests an engine start.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during the restart might be noticeable.Parking9 Warning
● Do not park the vehicle on an
easily ignitable surface. The
high temperature of the
exhaust system could ignite the
surface.
● Always apply the parking brake. Activate the parking
brake without pressing the
release button. Apply as firmly
as possible on a downhill slope
or uphill slope. Depress brake
pedal at the same time to
reduce operating force.
● Switch off the engine.
● If the vehicle is on a level surface or uphill slope, engage
first gear or set the selector
lever to position P. 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 . Turn the front wheels
towards the kerb.
● Close the windows.
● Remove the ignition key from the ignition switch or switch off
ignition on vehicles with power
button. Turn the steering wheel until the steering wheel lock is
felt to engage.
● Lock the vehicle with e on the
radio remote control.
Or with electronic key system
press marking on front door
handles 3 22.
● Activate the anti-theft alarm system 3 31.
● The engine cooling fans may run
after the engine has been
switched off 3 174.
Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low load or run in neutral for
132Driving and operatingAutomatic transmission
The automatic transmission permits
automatic gearshifting (automatic
mode) or manual gearshifting
(manual mode).
Manual shifting is possible in manual
mode by tapping the selector lever to + or - 3 133.
Transmission display
The mode or selected gear is shown
in the Driver Information Centre.
D and the number of the engaged
gear indicates automatic mode.
M and the number of the selected
gear indicates manual mode.
R indicates reverse gear.
N indicates neutral position.
P indicates park position.
Gear selection
Move the selector lever in the shifting
gate as shown in the illustration
above.
P:park position, wheels are locked, engage only when the vehicle is
stationary and the parking brake is appliedR:reverse gear, engage only when
the vehicle is stationaryN:neutralD:automatic modeM:manual mode<:upshift in manual mode]:downshift in manual mode
The selector lever is locked in P and
can only be moved when the ignition
is on and the brake pedal is applied.
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.
136Driving and operatingBrakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when the brake pedal
is depressed firmly. Considerably
more force is needed for this. The
braking distance is extended. Seek the assistance of a workshop before
continuing the journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
Control indicator R 3 83.
Antilock brake system
Antilock brake system (ABS)
prevents the wheels from locking.ABS starts to regulate brake pressure as soon as a wheel shows a tendency to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that the pedal is pulsating. Do not reduce
the pressure on the pedal.
When braking in an emergency, the
hazard warning flashers are switched
on automatically depending on the
force of deceleration. They are
switched off automatically the first
time you accelerate.
After starting off, the system performs
a self-test which may be audible.
Control indicator u 3 83.
Fault9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
Have the cause of the fault remedied
by a workshop.
Parking brake
9 Warning
Before leaving the vehicle, check
parking brake status. Control
indicator R must illuminate
constantly.
Driving and operating1379Warning
Always apply parking brake firmly
without operating the release
button, and apply as firmly as
possible on a downhill or uphill
slope.
To release the parking brake, pull
the lever up slightly, press the
release button and fully lower the
lever.
To reduce the operating forces of
the parking brake, depress the
foot brake at the same time.
Control indicator R 3 83.
Brake assist
If brake pedal is depressed quickly
and forcefully, maximum brake force
is automatically applied.
Operation of brake assist might
become apparent by a pulse in the
brake pedal and a greater resistance when depressing the brake pedal.
Maintain steady pressure on the
brake pedal as long as full braking is
required. Maximum brake force is
automatically reduced when brake
pedal is released.
Hill start assist The system helps prevent unintendedmovement when driving away on
inclines.
When releasing the brake pedal after
stopping on an incline, brakes remain on for further 2 seconds. The brakes
release automatically as soon as the
vehicle begins to accelerate.Ride control systems
Electronic Stability Control and Traction Control system
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. It prevents
the driven wheels from spinning.
The traction control system is a
component of the ESC and prevents
the driven wheels from spinning. As
soon as the driven wheels starts to
spin, engine output is reduced and
the wheel spinning the most is braked
individually. This considerably
improves the driving stability of the
vehicle on slippery road surfaces.
Driving and operating139Driver assistance
systems9 Warning
Driver assistance systems are
developed to support the driver
and not to replace the driver's
attention.
The driver stays in full control of
the vehicle and accepts full
responsibility when driving the
vehicle.
When using driver assistance
systems, always take care
regarding the current traffic
situation and follow applicable
traffic rules.
Cruise control
The cruise control can store and
maintain speeds above 25 mph.
Additionally at least the third gear
must be engaged on manual
transmission.
Additionally position D or the second
or a higher gear in position M must be
selected on automatic transmission.
Deviations from the stored speeds
may occur when driving uphill or
downhill.
The system maintains the vehicle
speed at the preset speed by the
driver, without any action on the
accelerator pedal.
The preset speed can be exceeded
temporarily by pressing the
accelerator pedal firmly.
The status and preset speed is
displayed in the Driver Information Centre.
Do not use the cruise control if it is not advisable to maintain a constant
speed.
Control indicator m 3 87.Switching on the system
Press m on the steering wheel:
symbol m and a message are
indicated in the Driver Information
Centre. The system is still not active.
140Driving and operating
Activation of the functionalitySetting speed by the driver
Accelerate to the desired speed and
move thumb wheel briefly to SET/-.
The current speed is stored and
maintained. Accelerator pedal can be
released.
The preset speed can then be
changed by moving thumb wheel to RES/+ to increase or to SET/- to
decrease the speed. Move thumb
wheel repeatedly to change speed in
small steps, move and hold to change speed in large steps.
Speed value is indicated in the Driver
Information Centre.
Adopting speed by the speed limit
recognition
The intelligent speed adaptation
informs the driver when a speed limit
is detected by the speed limit
recognition. The detected speed limit
can be used as new value for the
cruise control.
Using the camera at the top of the
windscreen, this system detects and
reads speed limit and end of speed
limit signs.