
DrivingVehicle equipment
This chapter describes all standard, national
and special equipment provided in the model
series. Equipment not available in the vehicle is
therefore also described, for example the se‐
lected special equipment or national version.
This also applies to safety-relevant functions
and systems. Comply with the relevant na‐
tional regulations when using the correspond‐
ing functions and systems.
Start/stop button
Principle The ignition is switched on or offand the engine is started by
pressing the start/stop button.
M double clutch transmission:
The engine starts if the brakes
are applied when the start-stop button is
pressed.
Manual gearbox: The engine starts if the clutch
pedal is pressed when pressing the start/stop
button.
Ignition on M double clutch transmission: Press the start/
stop button without applying the brakes.
Manual gearbox: Press the start/stop button,
do not press the clutch pedal.
All systems are operational.
Most of the indicator and warning lamps in the
instrument cluster are illuminated for different
lengths of time.
To save battery power when the engine is off,
switch off the ignition and any unnecessary
electronic systems.Ignition off
M double clutch transmission: Press the start/
stop button again without applying the brakes.
Manual gearbox: Press the start/stop button
again, do not press the clutch pedal.
All indicator lights in the instrument cluster ex‐
tinguish.
To save battery power when the engine is off,
switch off the ignition and any unnecessary
electronic systems.
Notes
When the ignition is switched off, selector
lever position P will be automatically engaged,
if selector lever position D or R is engaged.
With the vehicle stationary and the engine shut
down, the ignition is switched off automatically
under the following circumstances:▷When locking, even with the low-beam
headlights switched on.▷Shortly before the battery is discharged so
that an engine start remains possible.▷When opening or closing the driver's door,
if the driver's belt is unfastened and the
low-beam headlights are switched off.▷When the driver's belt is unfastened, if the
driver's door is opened and the low-beam
headlights switched off.
After about 15 minutes without further opera‐
tion, low-beam headlights are changed over to
side lights.
Radio ready state
Activate radio ready state: when the engine is
running, press the start/stop button.
Individual electrical systems remain opera‐
tional.
The radio ready sate is automatically switched
off in the following situations:
Seite 65DrivingControls65
Online Edition for Part no. 01 40 2 964 013 - VI/15

▷After approximately eight minutes.▷When locking via the central locking sys‐
tem.▷Shortly before the battery is discharged so
that an engine start remains possible.
Radio readiness remains active when ignition
is switched off automatically, such as for
following reasons:
▷Opening or closing driver's door.▷Unfastening driver's seat belt.▷When low-beam headlights are automati‐
cally changed to side lights.
If engine is switched off and ignition is
switched on, radio ready state will be automati‐
cally activated when door is opened if light is
switched off or daytime driving lights are
switched on, when corresponding equipment
is fitted.
Engine start Notes DANGER
A blocked exhaust pipe or inadequate
ventilation can allow harmful exhaust fumes to
penetrate the vehicle. The exhaust gas con‐
tains carbon monoxide, which is colourless and
odourless, but highly toxic. In enclosed spaces,
the exhaust fumes can also build up outside
the vehicle. Danger of fatal injury. Keep the ex‐
haust pipe clear and ensure sufficient ventila‐
tion.◀
WARNING
An unsecured vehicle can start moving
and rolling away. Danger of accidents. Before
leaving the vehicle, secure it to prevent rolling
away.
Observe the following to ensure that the vehi‐
cle is secured against rolling away:
▷Engage the parking brake.▷Turn the front wheels into the direction of
the kerb on upward or downward gradi‐
ents.▷Additionally secure the vehicle on upward
or downward gradients, e.g. using a
wedge.◀
ATTENTION
Repeated start attempts or starting sev‐
eral times in quick succession means that fuel
is not combusted, or insufficiently so. The cat‐
alytic converter can overheat. Danger of dam‐
age to property. Avoid starting more than once
in quick succession.◀
M double clutch transmission
Starting the engine
1.Press the brake.2.Press the start/stop button.
Starting proceeds for a certain time automati‐
cally and stops as soon as the engine is star‐
ted.
Manual gearbox
Starting the engine
1.Press the brake.2.Depress the clutch and engage idle posi‐
tion.3.Press the start/stop button.
Starting proceeds for a certain time automati‐
cally and stops as soon as the engine is star‐
ted.
Seite 66ControlsDriving66
Online Edition for Part no. 01 40 2 964 013 - VI/15

▷Driver's seat belt buckled or driver's door
closed.
The air flow rate of the air conditioning system
is reduced when the engine is not running.
Displays in the instrument cluster The display READY in the revo‐
lution counter indicates that the
Auto Start Stop function is
ready for automatic engine
starting.
The display indicates that the preconditions for an automatic
engine stop are not met.
Restrictions of the function The engine is not shut down automatically in
the following situations:
▷Outside temperature too low.▷High outside temperature and operation of
the automatic air conditioning.▷Interior not heated or cooled to the desired
temperature.▷Engine is not yet at operating temperature.▷Sharp steering angle or steering operation.▷After reversing.▷Condensation when the automatic air con‐
ditioning is switched on.▷Vehicle battery is heavily discharged.▷At high altitudes.▷Bonnet is unlocked.▷Parking assistant is activated.▷Stop-and-go traffic.▷Use of fuel with high ethanol content.
Engine start
For driving off, the engine automatically starts
under the following conditions:
▷M double clutch transmission:
By releasing the brake pedal.▷Manual gearbox:
Clutch pedal is depressed.
After starting the engine, accelerate as normal.
Safety function After an automatic shut down, the engine will
not restart automatically if one of the following
conditions is satisfied:
▷Driver's seat belt unbuckled and driver's
door open.▷Bonnet has been unlocked.
Several indicator lights illuminate for various
lengths of time.
The engine can only be started using the start/
stop button.
Restrictions of the function
Even if you do not want to drive off, the engine
restarts automatically in the following situa‐
tions:
▷Very high temperature inside the passen‐
ger compartment, if the cooling function is
on.▷The driver applies lock to the steering
wheel.▷M double clutch transmission: Shift from
selector lever position D to N, R or D/S.▷M double clutch transmission: Depress the
accelerator and the brake at the same time.▷Vehicle starts to roll.▷Condensation when the automatic air con‐
ditioning is switched on.▷Vehicle battery is very low.▷Very low temperature inside the passenger
compartment, if the heating is on.▷Low brake vacuum, for example because
the brake pedal has been depressed a
number of times in succession.Seite 68ControlsDriving68
Online Edition for Part no. 01 40 2 964 013 - VI/15

Current fuel consumption
Display Shows the momentary fuel con‐
sumption. It is possible to check
the economy and environmental
compatibility of your driving
style.
Displaying the current fuel
consumption1."Settings"2."Instr. cluster display"3.If applicable, "M driving dynamics syst."
The current fuel consumption display is
active.
Display of the driving dynamic sys‐
tems, see page 86.
The bar gauge for the current fuel consump‐
tion is shown in the instrument cluster.
Energy recuperation
Display In the coasting mode, the kinetic
energy of the vehicle is conver‐
ted into electrical energy. The
vehicle battery is partially
charged and fuel consumption
can be lowered.
Display energy recuperation
1."Settings"2."Instr. cluster display"3.If applicable, "M driving dynamics syst."
The energy recuperation display is ac‐
tive.
Display of the driving dynamic sys‐
tems, see page 86.
EfficientDynamics display
Displaying EfficientDynamics When travelling, information on consumption
and technology is shown.1."Vehicle information"2."EfficientDynamics"
Showing fuel consumption history
The average fuel consumption can be shown
in the set time span.
"Consumption history"
Setting time fuel consumption history
time span
Select the symbol.
Resetting fuel consumption history
1.Calling up"Options".2."Reset consumption history"
Showing EfficientDynamics Info
The current type of action can be shown.
"EfficientDynamics info"
The following systems are shown:
▷Auto Start Stop function.▷Energy recuperation.▷Air conditioning power.
Driving dynamic systems
Display The system states of the driving
dynamics are shown in the in‐
strument cluster.
Seite 86ControlsDisplays86
Online Edition for Part no. 01 40 2 964 013 - VI/15

LightsVehicle equipmentThis chapter describes all standard, national
and special equipment provided in the model
series. Equipment not available in the vehicle is
therefore also described, for example the se‐
lected special equipment or national version.
This also applies to safety-relevant functions
and systems. Comply with the relevant na‐
tional regulations when using the correspond‐
ing functions and systems.
Overview Switch in the vehicle
The light switch element is located next to the
steering wheel.
Light functions
SymbolFunctionRear fog lightsAutomatic driving lights control
Adaptive HeadlightsLights off
Daytime driving lightsSymbolFunctionSide lightsLow-beam headlightsInstrument lighting
Side lights, low-beam
headlights and parking light
General
Switch position:
, ,
If the driver's door is opened with the ignition
switched off, the exterior lights are automati‐
cally switched off with these switch settings.
Side lights
Switch position:
The vehicle is illuminated all round.
You should not leave the side lights on for lon‐
ger periods of time, since the vehicle battery
could discharge and you might not have
enough power to start the engine.
To park, switch on the one-sided parking light,
see page 99.
Low-beam headlights Switch position:
The low-beam headlights illuminate with the
ignition switched on.
Seite 98ControlsLights98
Online Edition for Part no. 01 40 2 964 013 - VI/15

Automatic air recirculation control,
AUC/recirculated-air mode
If the air outside the vehicle has an unpleasant
odour or contains pollutants, the supply to the
interior of the vehicle can be shut off. The air
inside the vehicle is then recirculated.
Press button repeatedly to call up an
operating mode:▷LEDs off: ambient air is constantly entering
the car.▷Left-hand LED on, AUC mode: a sensor
detects pollutants in the outside air and
shuts it out automatically.▷Right-hand LED on, recirculated-air mode:
the ambient air supply is permanently shut
off.
The recirculated-air mode automatically
switches off at low outside temperatures after
a given time, to avoid condensation.
Continuous recirculated-air mode deteriorates
the air quality in the interior and condensation
on the windows increases.
If there is condensation on the window, switch
off recirculated-air mode and press the AUTO
button to use the condensation sensor. Ensure
that air can flow towards the windscreen.
Adjusting the air flow manually To be able to adjust the air flow manually, first
switch off the AUTO program.
Pressing the button on the left or right
reduces or increases the air flow.
The selected air flow is shown on the display
for automatic air conditioning.
In order to protect the battery the air flow rate
of the automatic air conditioning is reduced, if
necessary.
Adjusting the air distribution manually Press button repeatedly to select a
program:
▷Upper body area.▷Upper body area and footwell.▷Footwell.▷Windows and footwell: only on the driver's
side.▷Windows, upper body area and footwell:
only on the driver's side.
If there is condensation on the window, press
the AUTO button in order to use the conden‐
sation sensor.
Defrosting windows and removing
condensation
Press the button.
This removes ice and condensation
quickly from the windscreen and the front side
windows.
To do this, point the side nozzles at the side
windows if necessary.
The air flow can be adapted when the program
is active.
If there is condensation on the window, switch
on the cooling function as well or press the AUTO button to use the condensation sensor.
Heated rear window Press the button.
The heated rear window is switched
off automatically after a certain period of time.
Microfilter/activated charcoal filter
In outside and recirculated-air mode, the mi‐
crofilter/activated carbon filter filters dust, pol‐ len and harmful gases from the air.
This filter should be changed during mainte‐
nance on your vehicle, see page 191.
Seite 146ControlsClimate146
Online Edition for Part no. 01 40 2 964 013 - VI/15

Connecting electrical
appliances
Information ATTENTION
Battery chargers for the vehicle battery
can operate with high voltages and high cur‐
rents, which can overload or damage the
12 volt on-board network. Danger of damage
to property. Only connect battery chargers for
the vehicle battery to the jump-starting con‐
nections in the engine compartment.◀
ATTENTION
If metallic objects fall into the socket,
they can cause a short circuit. Danger of dam‐
age to property. After using the socket, put the
lighter or socket cover back on.◀
Power sockets
General
Cigarette lighter socket can be used as a
socket for electrical devices when the engine
is running or the ignition is switched on.
Note The total load of all sockets must not exceed
140 Watt at 12 Volt.
To avoid damage to the socket, do not insert
an incompatible plug.
Front centre console
Lift the lid and remove the cover or lighter.
Rear centre console
Remove the cover.
Inside the boot
Socket is on the left in the boot.
USB interface for data
transfer
Principle Connection for importing and exporting data
on a USB medium, for example:
▷Personal Profile settings, see page 33.▷Music collection.▷Importing trips.
Notes
When connecting, bear the following in mind:
▷Do not insert the plug forcibly in the USB
interface.▷Do not connect any devices such as fans
or lights to the USB interface.Seite 150ControlsInterior equipment150
Online Edition for Part no. 01 40 2 964 013 - VI/15

Engine compartmentVehicle equipmentThis chapter describes all standard, national
and special equipment provided in the model
series. Equipment not available in the vehicle is
therefore also described, for example the se‐lected special equipment or national version.
This also applies to safety-relevant functions
and systems. Comply with the relevant na‐
tional regulations when using the correspond‐
ing functions and systems.
Engine compartment quick reference guide
1Starting assistance, negative battery termi‐
nal2Vehicle identification number3Reservoir for washer fluid4Starting assistance, positive battery termi‐
nal5Engine compartment fuse box6Oil filler neck7Coolant tank for charge air cooling8Coolant tank for engine coolingSeite 182MobilityEngine compartment182
Online Edition for Part no. 01 40 2 964 013 - VI/15