▷After approx. 8 minutes.▷When the vehicle is locked using the central
locking system.
▷Shortly before the battery is discharged
completely, so that the engine can still be
started.
The radio-ready state remains active if, for ex‐
ample, the ignition is automatically switched off
for the following reasons:
▷Opening or closing the driver's door.▷Unfastening of the driver's safety belt.▷When automatically switching from low
beams to parking lights.
If the engine is switched off and the ignition is
switched on, the system automatically switches
to the radio-ready state if the lights are turned
off or, if correspondingly equipped, the day‐
time running lights are activated.
Starting the engine
Information
DANGER
If the exhaust pipe is blocked or ventila‐
tion is insufficient, harmful exhaust gases can
enter into the vehicle. The exhaust gases con‐
tain carbon monoxide, an odorless and color‐
less but highly toxic gas. In enclosed areas, ex‐
haust gases can also accumulate outside of the
vehicle. There is danger to life. Keep the ex‐
haust pipe free and ensure sufficient ventila‐
tion.◀
WARNING
An unsecured vehicle can put itself into
motion and roll away. There is risk of an acci‐
dent. Before exiting, secure the vehicle against
rolling.
In order to ensure that the vehicle is secured
against rolling away, observe the following:
▷Set the parking brake.▷On uphill grades or on a slope, turn the
front wheels in the direction of the curb.
▷On uphill grades or on a slope, also secure
the vehicle, for example with a wheel
chock.◀
CAUTION
In the case of repeated starting attempts
or repeated starting in quick succession, the
fuel is not burned or is inadequately burned.
The catalytic converter can overheat. There is
risk of property damage. Avoid repeated start‐
ing in quick succession.◀
Steptronic transmission
Starting the engine
1.Depress the brake pedal.2.Engage selector lever position P or N.3.Press the Start/Stop button.
The ignition is activated automatically for a cer‐
tain time and is stopped as soon as the engine
starts.
Manual transmission
Starting the engine
1.Depress the brake pedal.2.Press on the clutch pedal and shift to neu‐
tral.
3.Press the Start/Stop button.
The ignition is activated automatically for a cer‐
tain time and is stopped as soon as the engine
starts.
Engine stop
Information
WARNING
Unattended children or animals can move
the vehicle and endanger themselves and traf‐
fic, for example with the following actions:
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▷Pressing the Start/Stop button.▷Releasing the parking brake.▷Opening and closing of doors or windows.▷Engaging selector lever position N.▷Using vehicle equipment.
There is risk of accidents or injuries. Do not
leave children or animals unattended in the ve‐
hicle. Carry remote control along when exiting
and lock the vehicle.◀
WARNING
An unsecured vehicle can put itself into
motion and roll away. There is risk of an acci‐
dent. Before exiting, secure the vehicle against
rolling.
In order to ensure that the vehicle is secured
against rolling away, observe the following:
▷Set the parking brake.▷On uphill grades or on a slope, turn the
front wheels in the direction of the curb.
▷On uphill grades or on a slope, also secure
the vehicle, for example with a wheel
chock.◀
Before driving into a car wash
So that the vehicle can roll into a car wash ob‐
serve instructions for going into an automatic
car wash, refer to page 221.
Steptronic transmission
Switching off the engine
1.Engage selector lever position P with the
vehicle stopped.
2.Press the Start/Stop button.
The engine is switched off.
The radio-ready state is switched on.
3.Set the parking brake.Manual transmission
Switching off the engine
1.With the vehicle at a standstill, press the
Start/Stop button.
The engine is switched off.
The radio-ready state is switched on.
2.Shift into first gear or reverse.3.Set the parking brake.
Auto Start/Stop function
The concept
The Auto Start/Stop function helps save fuel.
The system switches off the engine during a
stop, for example, in traffic congestion or at
traffic lights. The ignition remains switched on.
The engine starts again automatically for driv‐
ing off.
Information
After every start of the engine using the Start/
Stop button, the Auto Start/Stop function is in
the last selected state, refer to page 68. When
the Auto Start/Stop function is active, it is avail‐
able when the vehicle is traveling faster than
about 3 mph, approx. 5 km/h.
Depending on the selected driving mode, refer
to page 119, the system is automatically acti‐
vated or deactivated.
Engine stop
The engine is switched off automatically during
a stop under the following conditions:
Manual transmission:
▷Neutral is engaged and the clutch pedal is
not pressed.
▷The driver's safety belt is buckled or the
driver's door is closed.
Steptronic transmission:
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▷The selector lever is in selector lever posi‐
tion D.
▷Brake pedal remains depressed while the
vehicle is stopped.
▷The driver's safety belt is buckled or the
driver's door is closed.
In order to be able to release the brake pedal,
engage lever in position P. The engine remains
off.
To continue driving depress the brake pedal.
When a gear is engaged, the engine starts au‐
tomatically.
The air flow from the air conditioner is reduced
when the engine is switched off.
Displays in the instrument cluster
The display indicates that the
Auto Start/Stop function is ready
for an Automatic engine start.
The display indicates that the
conditions for an automatic en‐
gine stop have not been met.
Functional limitations
The engine is not switched off automatically in
the following situations:
▷External temperature too low.▷The external temperature is high and auto‐
matic climate control is running.
▷The car's interior has not yet been heated
or cooled to the required level.
▷The engine is not yet at operating tempera‐
ture.
▷The wheels are at a sharp angle or the
steering wheel is being turned.
▷After driving in reverse.▷Fogging of the windows when the auto‐
matic climate control is switched on.
▷The vehicle battery charge is very low.▷At higher elevations.▷The engine compartment lid is unlocked.▷The parking assistant is activated.▷Stop-and-go traffic.▷Selector lever in selector lever position R, N
or M/S.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
▷Manual transmission:
The clutch pedal is pressed.
▷Steptronic transmission:
By releasing the brake pedal.
After the engine starts, accelerate as usual.
Safety mode
After the engine switches off automatically, it
will not start again automatically if any one of
the following conditions are met:
▷The driver's safety belt is unbuckled and
the driver's door is open.
▷The hood was unlocked.
Some indicator lights light up for a varied
length of time.
The engine can only be started via the Start/
Stop button.
Functional limitations
Even if driving off was not intended, the deacti‐
vated engine starts up automatically in the fol‐
lowing situations:
▷Excessive warming of the car's interior
when the cooling function is switched on.
▷The steering wheel is turned.▷Steptronic transmission: change from selec‐
tor lever position D to R, N or M/S.
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▷Steptronic transmission: change from selec‐
tor lever position P to R, N, D or M/S.
▷The vehicle begins rolling.▷Fogging of the windows when the auto‐
matic climate control is switched on.
▷The vehicle battery charge is very low.▷Excessive cooling of the car's interior when
the heating is switched on.
▷Manual transmission: low brake vacuum
pressure; this can occur, for example, if the
brake pedal is depressed a number of times
in succession.
Switching the system on/off
Using the button
Press button.
▷LED comes on: Auto Start/Stop function is
deactivated.
The engine is started during an automatic
engine stop.
The engine can only be stopped or started
via the Start/Stop button.
▷LED goes out: Auto Start/Stop function is
activated.
Switching off the vehicle during an
automatic engine stop
During an automatic engine stop, the vehicle
can be switched off permanently, e. g., when
leaving it.
Steptronic transmission:1.Engage selector lever position P.2.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function is
deactivated.
3.Set the parking brake.
Manual transmission:
1.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function is
deactivated.
2.Shift into first gear or reverse.3.Set the parking brake.
Engine start as usual via Start/Stop button.
Automatic deactivation
In certain situations, the Auto Start/Stop func‐
tion is deactivated automatically for safety rea‐
sons, as it is detected that no driver is present.
Malfunction
The Auto Start/Stop function no longer switches
off the engine automatically. A Check Control
message is displayed. It is possible to continue
driving. Have the system checked by a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Parking brake
The concept
The parking brake is used to prevent the vehi‐
cle from rolling when it is parked.
Information
WARNING
An unsecured vehicle can put itself into
motion and roll away. There is risk of an acci‐
dent. Before exiting, secure the vehicle against
rolling.
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In order to ensure that the vehicle is secured
against rolling away, observe the following:
▷Set the parking brake.▷On uphill grades or on a slope, turn the
front wheels in the direction of the curb.
▷On uphill grades or on a slope, also secure
the vehicle, for example with a wheel
chock.◀
WARNING
Unattended children or animals can move
the vehicle and endanger themselves and traf‐
fic, for example with the following actions:
▷Pressing the Start/Stop button.▷Releasing the parking brake.▷Opening and closing of doors or windows.▷Engaging selector lever position N.▷Using vehicle equipment.
There is risk of accidents or injuries. Do not
leave children or animals unattended in the ve‐
hicle. Carry remote control along when exiting
and lock the vehicle.◀
Overview
Parking brake
Setting
Pull the switch.
The LED lights up.
The indicator lamp lights up red. The
parking brake is set.
Depending on the stopping situation, the park‐
ing brake is engaged automatically.
Steptronic transmission: In some parking situa‐
tions, the parking brake is automatically en‐
gaged, when selector lever position P is en‐
gaged. In these cases, the parking brake is
released automatically when you leave the se‐
lector lever position P.
While driving
Use as emergency brake while driving:
Pull the switch and hold it. The vehicle brakes
hard while the switch is being pulled.
The indicator lamp lights up red, a sig‐
nal sounds and the brake lights light up.
A Check Control message is displayed.
If the vehicle is slowed down to a speed of ap‐
prox. 2 mph/3 km/h the parking brake is set.
Releasing
WARNING
Unattended children or animals can move
the vehicle and endanger themselves and traf‐
fic, for example with the following actions:
▷Pressing the Start/Stop button.▷Releasing the parking brake.▷Opening and closing of doors or windows.▷Engaging selector lever position N.▷Using vehicle equipment.
There is risk of accidents or injuries. Do not
leave children or animals unattended in the ve‐
hicle. Carry remote control along when exiting
and lock the vehicle.◀
With the ignition switched on:
Manual transmission: Press the switch
while the brake pedal is pressed.
Steptronic transmission: Press the switch while
the brake is pressed or selector lever position P
is set.
The LED and indicator lamp go out.
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When destination guidance is activated in
the navigation system.
▷Speed limit detection.▷Speed.
Selecting information
You can select what information from the on‐
board computer is to be displayed on the CID
(central information display) of the instrument
cluster.
On the Control Display:
1. "Settings"2."Instrument cluster"3.Select the desired information.
Settings are stored for the profile currently
used.
Information in detail
Range
Displays the estimated cruising range available
with the remaining fuel.
It is calculated based on your driving style over
the last 20 miles/30 km.
GREEN info
Description of GREEN info, refer to page 171.
Average fuel consumption
This is calculated for the period while the en‐
gine is running.
The average fuel consumption is calculated for
the distance traveled since the last reset by the
onboard computer.
Average speed
Periods in which the vehicle is parked with the
engine manually stopped are not included in
the calculation of the average speed.
Resetting average values
Press and hold button on turn signal lever.
Engine temperature display
Displays the current engine temperature, based
on a combination of coolant and motor oil tem‐
perature. As soon as the optimum operating
temperature has been attained, the indicator is
in the center position.
If the engine oil or coolant, thus the engine, be‐
come too hot, a Check Control message is dis‐
played.
Check the coolant level, refer to page 199.
With equipment version with Head-up
Display and navigation: distance to
destination
The distance remaining to the destination is
displayed if a destination is entered in the navi‐
gation system before the trip is started.
The distance to the destination is adopted au‐
tomatically.
With equipment version with Head-up
Display and navigation: time of arrival
The estimated time of arrival is displayed if a
destination is entered in the navigation system
before the trip is started.
The time must be correctly set.
Speed limit detection
Speed limit detection is preset. Description of
the speed limit detection, refer to page 86,
function.
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Status display
The current status of the Tire Pressure Monitor
TPM can be displayed on the Control Display,
e.g., whether or not the TPM is active.
On the Control Display:
1. "Vehicle info"2."Vehicle status"3. "Tire Pressure Monitor (TPM)"
The status is displayed.
Status control display
Tire and system status are indicated by the
color of the tires and a text message on the
Control Display.
All wheels green
System is active and will issue a warning rela‐
tive to the tire inflation pressures stored during
the last reset.
One wheel is yellow
A flat tire or major drop in inflation pressure in
the indicated tire.
All wheels are yellow
A flat tire or major drop in inflation pressure in
several tires.
Wheels, gray
The system cannot detect a flat tire due to a
malfunction.
Status information
The status control display additionally shows
the current tire inflation pressures. It shows the
actual values read; they may vary depending
on driving style or weather conditions.
Carry out reset
Reset the system after each adjustment of the
tire inflation pressure and after every tire or
wheel change.
On the Control Display and on the vehicle:1. "Vehicle info"2."Vehicle status"3. "Perform reset"4.Start the engine - do not drive off.5.Reset the tire inflation pressure using
"Perform reset".
6.Drive away.
The tires are shown in gray and the status is
displayed.
After driving faster than 19 mph/30 km/h for a
short period, the set tire inflation pressures are
accepted as reference values. The resetting
process is completed automatically while driv‐
ing. After successful completion of the reset,
the tires appear in green on the Control Display
and "Tire Pressure Monitor (TPM) active" is dis‐
played.
The progress of the reset is displayed.
You may interrupt this trip at any time. When
you continue the reset resumes automatically.
Low tire pressure message
The yellow warning lamp lights up. A
Check Control message is displayed.
▷There is a flat tire or a major loss in
tire inflation pressure.
▷A reset of the system was not carried out
after a wheel was changed. The system
therefore issues a warning based on the tire
pressures before the last reset.
1.Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
2.Check whether the vehicle is fitted with
normal tires or run-flat tires.
Run-flat tires, refer to page 188, are la‐
beled with a circular symbol containing the
letters RSC marked on the tire's sidewall.
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tire tread life, and may affect the vehicle's han‐
dling and stopping ability. Please note that the
TPMS is not a substitute for proper tire mainte‐
nance, and it is the driver's responsibility to
maintain correct tire pressure, even if under-in‐
flation has not reached the level to trigger illu‐
mination of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The TPMS
malfunction indicator is combined with the low
tire pressure telltale. When the system detects
a malfunction, the telltale will flash for approxi‐
mately one minute and then remain continu‐
ously illuminated. This sequence will continue
upon subsequent vehicle start-ups as long as
the malfunction exists. When the malfunction
indicator is illuminated, the system may not be
able to detect or signal low tire pressure as in‐
tended. TPMS malfunctions may occur for a va‐
riety of reasons, including the installation of re‐
placement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the re‐
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
FTM Flat Tire Monitor
The concept
The system does not measure the actual infla‐
tion pressure in the tires.
It detects a tire inflation pressure loss by com‐
paring the rotational speeds of the individual
wheels while moving.
In the event of a tire inflation pressure loss, the
diameter and therefore the rotational speed of
the corresponding wheel changes. This will be
detected and reported as a flat tire.
Functional requirements
The system must have been initialized when
the tire inflation pressure was correct; other‐
wise, reliable flagging of a flat tire is not as‐
sured. Initialize the system after each correc‐
tion of the tire inflation pressure and after
every tire or wheel change.
Status display
The current status of the Flat Tire Monitor can
be displayed on the Control Display, e.g.,
whether or not the FTM is active.
On the Control Display:
1. "Vehicle info"2."Vehicle status"3. "Flat Tire Monitor (FTM)"
The status is displayed.
Initialization
When initializing the once set inflation tire pres‐
sures serve as reference values in order to de‐
tect a flat tire. Initialization is started by con‐
firming the inflation pressures.
Do not initialize the system when driving with
snow chains.
On the Control Display:
1. "Vehicle info"2."Vehicle status"3. "Perform reset"4.Start the engine - do not drive off.5.Start the initialization with "Perform reset".6.Drive away.
The initialization is completed while driving,
which can be interrupted at any time.
The initialization automatically continues when
driving resumes.
Indication of a flat tire
The yellow warning lamp lights up. A
Check Control message is displayed.
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