
▷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.
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Stopping the engine
Notes WARNING
Unsupervised children or animals in the
vehicle can set the vehicle in motion and en‐
danger themselves or other road users, for ex‐
ample by the following actions:▷Pressing the start/stop button.▷Releasing the parking brake.▷Opening and closing doors or windows.▷Setting the selector lever to neutral.▷Operating vehicle equipment.
Risk of accident or injury. Do not leave children
or animals unsupervised in the vehicle. When
leaving the vehicle, take the remote control
with you and lock it.◀
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.◀
Before entering the car wash
So that the vehicle can roll into the vehicle
wash, follow the information on washing in au‐
tomatic vehicle washes, see page 208.
M double clutch transmission
Stopping the engine
1.Brake the vehicle until it comes to a stop.2.Press the start/stop button.
The engine is switched off.
The radio ready state is switched on.3.Apply the parking brake.
Manual gearbox
Stopping the engine
1.Press the Start/Stop button when the vehi‐
cle is at standstill.2.Engage first gear or reverse.3.Apply the parking brake.
Auto Start Stop function
Principle The Auto Start Stop function helps you to save
fuel. by stopping the engine when stationary,
for example, in a traffic jam or at traffic lights.
The ignition remains switched on. For driving
off, the engine starts automatically.
Automatic operation
After each time the engine is started using the
start/stop button, the Auto Start Stop function
is ready to operate.
The function is activated from 5 km/h,
3 mph3 mph, km/h.
Stopping the engine The engine is automatically shut down whenstationary under the following conditions:
M double clutch transmission:
▷Selector lever in selector lever position D.▷Brake pedal remains depressed while the
vehicle is at a standstill.▷Driver's seat belt buckled or driver's door
closed.
Manual gearbox:
▷Transmission in neutral and clutch pedal
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▷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
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Preventing automatic engine stop
with M double clutch transmission
Principle To enable the vehicle to move off particularly
swiftly, for example at a junction, the automatic
engine stop can be actively prevented.
Preventing automatic engine stop
using the brake pedal
The engine stop can be actively prevented
within a second of the vehicle coming to a
standstill:▷Press the brake pedal down firmly as soon
as the vehicle has come to a standstill.▷Then immediately brake again with normal
braking force.
Manually deactivating/activating the
system
Using the button
Press the button.
▷LED illuminates: Auto Start Stop function
is deactivated.
During an automatic engine stop, the en‐
gine is started.
The engine can be started or stopped only
by means of the start/stop button.▷LED goes out: Auto Start Stop function is
activated.Parking the vehicle during automatic
engine stop
With automatic engine stop, the vehicle can be
parked safely, for example in order to leave it.1.Press the start/stop button. The ignition is
switched off. The Auto Start Stop function
is deactivated.
P is engaged automatically.2.Apply the parking brake.
Start engine as usual, using the start/stop but‐
ton.
Automatic deactivation
In certain situations the Auto Start Stop func‐
tion is deactivated automatically for safety's
sake, for example if the absence of the driver is
detected.
Malfunction
The Auto Start Stop function no longer shuts
down the engine automatically. A Check Con‐
trol message is displayed. It is possible to keep
driving. Have the system checked.
Parking brake
Applying The lever engages itself after pulling up.
The indicator light illuminates red. The
parking brake is engaged.
If it must be used while driving by way of ex‐
ception, slightly engage the parking brake
while pressing and holding the button.
To avoid corrosion and one-sided braking ef‐
fect, slightly pull on the parking brake from
time to time when moving away, if traffic condi‐
tions allow.
The brake lights do not illuminate when the
parking brake is applied.
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DisplaysVehicle 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, Instrument cluster
1Fuel gauge 842Speedometer3Messages, for example, Check Control4Revolution counter 84Shift Lights 965Engine oil temperature 846Current fuel consumption7Electronic displays 798Reset kilometres 84
Electronic displays
▷Selection lists, see page 90.▷Outside temperature, see page 84.▷Auto Start Stop function, see page 68.▷On-board computer, see page 90.▷Date, see page 85.▷Digital speedometer, see page 85.Seite 79DisplaysControls79
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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.
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Runflat indicator RPA
Principle The system identifies a loss of tyre pressure
by comparing the speeds of rotation of the in‐
dividual wheels while the vehicle is in motion.
If a tyre loses pressure, its diameter changes.
This in turn alters the rotational speed of the
corresponding wheel. This is detected and re‐
ported as a flat tyre.
The system does not measure the tyre pres‐
sures as such.
Operating requirements
The system must have been initialised with
correct tyre inflation pressure, otherwise relia‐
ble signalling of a flat tyre cannot be assured.
Each time the tyre pressure is adjusted or a
tyre or wheel is changed, initialise the system
again.
Status display The current status of the runflat indicator can
be shown on the Control Display, for example
whether the runflat indicator is active.
On the Control Display:1."Vehicle information"2."Vehicle status"3. "Flat Tyre Monitor (RPA)"
The status is displayed.
Initialising
On initialisation, the current tyre pressures are
stored as a reference for detection of a flat tyre. The initialisation is started by confirming
the correct tyre inflation pressures.
When driving with snow chains fitted, do not
initialise the system.
On the Control Display:
1."Vehicle information"2."Vehicle status"3. "Perform reset"4.Start the engine – do not drive off.5.Start the initialisation with "Perform reset".6.Drive off.
Initialising is completed while the vehicle is in
motion; this process can be interrupted at any
time.
Initialising resumes automatically when you
continue your journey.
Message of a flat tyre The yellow warning lamp is illuminated.
A Check Control message is shown.
There is a flat tyre or substantial loss of
tyre pressure.
1.Reduce your speed and carefully stop the
vehicle. Avoid violent or sudden braking
and steering manoeuvres.2.Determine which wheel is damaged. Do
this by checking the tyre inflation pres‐
sures with the aid of the Mobility System. If
all tyres are inflated to the correct pres‐
sures, the runflat indicator might not have
been initialised. In this case initialise the
system.3.Remedy the flat tyre with the Mobility Sys‐
tem or replace the damaged wheel.
System limits
A natural, even loss of tyre pressurein all four
tyres that occurs over time is not detected.
Consequently, check the tyre inflation pres‐
sure at regular intervals.
No warning can be given in the event of sud‐
den tyre failure caused by external factors.
In the following situations, the system could be
slow to respond or operate incorrectly:
▷If the system has not been initialised.▷Journey on snow-covered or slippery sur‐
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▷Dynamic driving style, causing the drive
gears to spin, high lateral acceleration.▷Driving with snow chains.
Intelligent Safety
Principle
Intelligent Safety permits central operation of
driver assistance systems.
Depending on equipment, Intelligent Safety
consists of one or more systems which can
help to avoid the risk of a collision. These sys‐
tems are automatically active each time you
start the engine with the start/stop button:
▷Front-end collision warning with city brak‐
ing function, see page 111.▷Person warning, see page 113.
Notes
WARNING
Displays and warnings do not take your
personal responsibility from you. System limi‐
tations can mean that warnings or system re‐
sponses are not issued, are issued too late, or are issued incorrectly. Danger of accidents.
Adapt driving style to the driving conditions.
Observe the traffic situation and intervene ac‐
tively if the situation warrants it.◀
WARNING
Due to system limitations, there may be
malfunctions of individual functions when tow-
starting/towing with activated Intelligent Safety Systems, for example approach control warn‐
ing with light braking function. Danger of acci‐
dents. Switch off all Intelligent Safety Systems
before tow-starting/towing.◀
Overview
Button in the vehicle
Intelligent Safety button
Camera
The camera is in the area of the base of the
rear-view mirror.
Keep the windscreen clean and clear in the
area in front of the rear view mirror.
Switching on/offThe Intelligent Safety Systems are active auto‐
matically at the start of each journey.
Press button: the systems are
switched off again. LED turns off.
Press button again: the systems are switched
on. LED is illuminated.
Settings can be adjusted on the Control Dis‐
play.
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