124Instruments and controls
In the corresponding submenus the
following settings can be changed:
Vehicle Settings ● Climate and Air Quality
Auto Fan Max Speed : Modifies
the level of the cabin airflow of the climate control in automatic
mode.
Auto Heated Seats :
Automatically activates the seat
heating.
Auto Demist : Supports
windscreen dehumidification by
automatically selecting the
necessary settings and
automatic air conditioning mode.
Auto Rear Demist : Automatically
activates heated rear window.
● Park Assist / Collision Detection
Forward Collision Alert : Activates
or deactivates forward collision
alert.
Collision Preparation : Activates
or deactivates the automatic
brake functionality of the vehicle in the event of imminent collision
danger. The following is
selectable: the system will take
over brake control, warn by
chimes only or is deactivated
completely.
Park Assist : Activates or
deactivates the parking assist.
Activation is selectable with or
without attached trailer hitch.
Go Notifier : Activates or
deactivates the reminder to drive
off when the adaptive cruise
control holds the vehicle at
standstill.
Side Blind Zone Alert : Activates
or deactivates side blind zone
alert.● Comfort Settings
Auto Memory Recall : Changes
the settings to the recall of
memorised settings for power
seat adjustment.
Easy Exit Driver Seat : Activates
or deactivates easy exit function of the power seat.
Chime Volume : Changes the
volume of warning chimes.
Personalisation by Driver :
Activates or deactivates the
personalisation function,
depending on which key is being
used.
Rain Sense Wipers : Activates or
deactivates automatic wiping
with rain sensor.
Rear Auto Wipe in Reverse :
Activates or deactivates
automatic switching on of the
rear window wiper when reverse gear is engaged.
● Exterior Ambient Lighting
Exterior lighting by unlocking :
Activates or deactivates the entry
lighting.
128Instruments and controls
In the corresponding submenus the
following settings can be changed:
Vehicle ● Climate and Air Quality
Auto Fan Speed : Modifies the
level of the cabin airflow of the
climate control in automatic
mode.
Auto Heated Seats :
Automatically activates the seat
heating.
Auto Demist : Supports
windscreen dehumidification by
automatically selecting the
necessary settings and
automatic air conditioning mode.
Auto Rear Demist : Automatically
activates heated rear window.
● Collision / Detection Systems
Forward Collision Alert : Activates
or deactivates forward collision
alert.
Auto Collision Preparation :
Activates or deactivates the
automatic brake functionality of
the vehicle in the event of
imminent collision danger. The
following is selectable: the
system will take over brake
control, warn by chimes only or is
deactivated completely.
Park Assist : Activates or
deactivates the ultrasonic
parking assist. Activation is
selectable with or without
attached trailer coupling.
Go Notifier : Activates or
deactivates the reminder function
of the adaptive cruise control.
Side Blind Zone Alert : Activates
or deactivates side blind zone alert.● Comfort and Convenience
Auto Memory Recall : Changes
the settings to the recall of
memorised settings for power
seat adjustment.
Easy Exit Driver Seat : Activates
or deactivates easy exit function of the power seat.
Chime Volume : Changes the
volume of warning chimes.
Personalisation by Driver :
Activates or deactivates the
personalisation function.
Rainsense Wipers : Activates or
deactivates automatic wiping with rain sensor.
Auto Wipe in Reverse Gear :
Activates or deactivates automatic switching on of the
rear window wiper when reverse
gear is engaged.
● Lighting
Vehicle Locator Lights : Activates
or deactivates the entry lighting.
Exit Lighting : Activates or
deactivates and changes the
duration of exit lighting.
162Driving and operatingAutomatic transmission: operate
brake pedal and move selector lever
to P or N.
Do not operate accelerator pedal.
Press Engine Start/Stop briefly: an
automatic procedure operates the
starter with a short delay until the engine is running, see automatic
starter control.
To switch off the engine when vehicle is stationary, press
Engine Start/Stop briefly. Automatic
transmission: apply the parking brake
and engage P.
To start the engine during an
Autostop:
● Manual transmission: during an Autostop, the engine can be
started by depressing the clutch
pedal 3 163.
● Automatic transmission: during an Autostop, the engine can be
started by releasing the brake pedal 3 163.Emergency engine shut off during
driving
If the engine needs to be switched offduring driving in case of emergency,
press Engine Start/Stop for longer
than 2 seconds or press twice briefly within 5 seconds.9 Danger
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 the engine and ignition while
driving only when required in case of emergency.
Starting the vehicle at low
temperatures
Starting the engine without additional
heaters is possible down to -25 °С for diesel engines and -30 °C for petrol
engines. Required is an engine oil
with the correct viscosity, the correct fuel, performed services and a
sufficiently charged vehicle battery.
With temperatures below -30 °C the
automatic transmission requires a
warming phase of approx. 5 minutes.
The selector lever must be in position P .
Automatic starter control This function controls the engine
starting procedure. The driver does
not need to hold the key in position 3
or to hold Engine Start/Stop pressed.
Once applied, the system will go on
starting automatically until the engine
is running. Because of the checking
procedure, the engine starts running after a short delay.
Driving and operating163Possible reasons for a non-starting
engine:
● clutch pedal not operated (manual transmission)
● brake pedal not operated or selector lever not in P or N
(automatic transmission)
● timeout occurred
Turbo engine warm-up Upon start-up, engine available
torque may be limited for a short time,
especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully protect the engine.
Overrun cut-off
The fuel supply is automatically cut off
during overrun, i.e. when the vehicle
is driven with a gear engaged but
accelerator pedal is released.
Depending on driving conditions, the
overrun cut-off may be deactivated.Stop-start system
The stop-start system helps to save
fuel and to reduce the exhaust
emissions. When conditions allow, it
switches off the engine as soon as the vehicle is at a low speed or at a
standstill, e.g. at a traffic light or in a
traffic jam. The ignition stays on.
The engine switches on automatically
when certain conditions apply or
restart is activated by a driver.
Activation
The stop-start system is available as
soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.Deactivation
Deactivate the stop-start system
manually by pressing D. The
deactivation is indicated when the
LED in the button illuminates.
Autostop
Vehicles with manual transmission
Depending on the engine, two
versions of an Autostop are available. See engine data to identify the engine
identifier code for your vehicle
3 284.
Conventional Autostop
All engines except B16DTU have only
the conventional Autostop.
164Driving and operatingAn Autostop can be activated at a
speed lower than 5 km/h.
Activate a conventional Autostop as follows:
● Depress the clutch pedal.
● Set the lever in neutral.
● Release the clutch pedal.
Early Autostop
Only the engine B16DTU has early
Autostop in addition to conventional
Autostop.
An Autostop can be activated at a
speed lower than 14 km/h.
Early Autostop is inhibited if the
incline is greater than 5%.
Activate an early Autostop as follows: ● Depress the brake pedal sufficiently.
● Depress the clutch pedal.
The engine will be switched off while
the ignition stays on.
Early Autostop is inhibited when the
turn lights are on, trailer hitch is
connected, the steering wheel is
moved beyond a certain point or the
inclines is greater than 5%.Vehicles with automatic transmission
If the vehicle is at a standstill with
depressed brake pedal, Autostop is
activated automatically.
Indication
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
After restart, the idle speed is
indicated.
During an Autostop, the heating 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 brake vacuum is sufficient.
● Between the last restart and a new Autostop must be about10 seconds.
176Driving and operatingABS starts to regulate brake pressureas 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.
After starting off, the system performs
a self-test which may be audible.
Control indicator u 3 110.
Adaptive brake light During full braking, all three brake
lights flash for the duration of ABS
control.
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 (manual parking
brake) or m (electrical parking
brake) must illuminate constantly.
Manual parking brake9 Warning
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.
Driving and operating177To reduce the operating forces ofthe parking brake, depress the
foot brake at the same time.
Control indicator R 3 109.
Electric parking brake
Applying when vehicle is stationary
9 Warning
Pull switch m for a minimum of
one second until control indicator
m illuminates constantly and
electric parking brake is applied
3 109. The electric parking brake
operates automatically with
adequate force.
Before leaving the vehicle, check
the electric parking brake status.
Control indicator m 3 109.
The electric parking brake can always
be activated, even if the ignition is off.
Do not operate electric parking brake
system too often without engine
running as this will discharge the vehicle battery.
Releasing
Switch on ignition. Keep foot brake
pedal depressed and then push
switch m.
Drive away function
Vehicles with manual transmission:
Depressing the clutch pedal and then
slightly releasing the clutch pedal and slightly depressing the accelerator
pedal releases the electric parking
brake automatically. This is not
possible when switch m is pulled at
the same time.
Vehicles with automatic transmission: Engaging D and then depressing the
accelerator pedal releases the
electric parking brake automatically.
This is not possible when switch m is
pulled at the same time.
Dynamic braking when vehicle is
moving
When the vehicle is moving and the
switch m is kept pulled, the electric
parking brake system will decelerate
the vehicle, but will not apply
statically.
As soon as the switch m is released,
dynamic braking will be stopped.
Automatic applying
If the vehicle is equipped with
automatic transmission and adaptive
cruise control is active, electric
parking brake is applied automatically
when vehicle is stopped by the
system for more than 2 minutes.
Parking brake releases automatically
after moving off.
Driving and operating185Resume limit speedTurn thumb wheel to RES/+. The
stored speed limit will be obtained
and is indicated without brackets in
the Driver Information Centre.
Switching off the system
Press L, the speed limit indication
extinguishes in the Driver Information Centre. The stored speed is deleted.
By pressing m to activate cruise
control or adaptive cruise control,
speed limiter is also deactivated and
the stored speed is deleted.
By switching off the ignition, speed
limiter is also deactivated, but the
speed limit will be stored for next
speed limiter activation.
Adaptive cruise control
Adaptive cruise control is an
enhancement to conventional cruise
control with the additional feature of maintaining a certain distance behind the vehicle ahead.Adaptive cruise control automatically
decelerates the vehicle when
approaching a slower moving vehicle. It then adjusts the vehicle speed to
follow the vehicle ahead at the
selected following distance. The
vehicle speed increases or decreases
to follow the vehicle in front, but will
not exceed the set speed. It may
apply limited braking with activated
brake lights.
The adaptive cruise control can store set speed over 30 km/h for manual
transmission. On vehicles with
automatic transmissions the system
can brake until a full stop and drive off
from a stop.
Adaptive cruise control uses radar
and camera sensors to detect the
vehicles ahead. If no vehicle is
detected in the driving path, the
adaptive cruise control will behave
like a conventional cruise control.
For additional information including a
video, visit us online.
Adaptive cruise control is mainly
advised to be used on long straight
roads like motorways or country
roads with steady traffic. Do not use
the system if it is not advisable to
maintain a constant speed.
Control indicator A 3 113, m 3 112,
C 3 113.9 Warning
The complete driver attention is
always required while driving with adaptive cruise control. The driver stays fully in control of the vehicle
because the brake pedal, the
accelerator pedal and the cancel
switch have priority over any
adaptive cruise control operation.