130Climate controlIf no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.
When the cooling system is switched
off, no engine restart will be
requested by the climate control
system during an Autostop.
Exception: defrost system is activated and outside temperature above 0 °C
requests a restart.
Stop-start system 3 136.
The status of cooling operation is
indicated in the Info-Display.
Activation or deactivation of cooling
operation after engine start can be
changed in the Info-Display. Vehicle
personalisation 3 106.Air recirculation mode 4
Press 4 to activate air recirculation
mode. The LED in the button
illuminates to indicate activation.
Press 4 again to deactivate air
recirculation mode.
9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling, the
air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen may mist
up from outside when cold air is
directed towards it. If windscreen
mists up from outside, activate
windscreen wiper and deactivate s.
Basic settings
Some settings can be changed in the Info-Display. Vehicle personalisation
3 106.
Driving and operating133Driving and
operatingDriving hints ............................... 134
Control of the vehicle ...............134
Starting and operating ...............134
New vehicle running-in ............134
Ignition switch positions ...........134
Retained power off ..................135
Starting the engine ..................135
Overrun cut-off ........................ 136
Stop-start system ....................136
Parking .................................... 139
Engine exhaust .......................... 140
Diesel particle filter ..................140
Catalytic converter ...................141
Automatic transmission ..............141
Transmission display ...............141
Selector lever .......................... 141
Manual mode ........................... 142
Electronic driving programmes 143
Fault ........................................ 143
Interruption of power supply ....143
Manual transmission ..................144Manual transmission automa‐
ted .............................................. 145
Transmission display ...............145
Starting the engine ..................145
Selector lever .......................... 146
Manual mode ........................... 148
Electronic driving programmes 148
Fault ........................................ 148
Brakes ........................................ 149
Antilock brake system .............149
Parking brake .......................... 150
Brake assist ............................. 150
Hill start assist ......................... 150
Ride control systems .................151
Traction Control system ..........151
Electronic Stability Control ......152
City mode ................................ 153
Driver assistance systems .........154
Cruise control .......................... 154
Speed limiter ........................... 156
Forward collision alert .............157
Following distance indication ...160
Parking assist .......................... 160
Side blind spot alert .................170
Rear view camera ...................172
Traffic sign assistant ................173
Lane departure warning ..........176
Fuel ............................................ 177
Fuel for petrol engines .............177Fuel for diesel engines ............178
Fuel for liquid gas operation ....179
Refuelling ................................ 181
Fuel consumption - CO 2-
Emissions ............................... 184
Trailer hitch ................................ 185
General information .................185
Driving characteristics and towing tips .............................. 185
Trailer towing ........................... 185
Towing equipment ...................186
Trailer stability assist ...............189
138Driving and operatingOtherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
'Climate control' chapter for further
information 3 126.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 134.
Vehicle battery discharge protection To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features, e.g. the rear window
heating, are disabled or switched into a power saving mode. The fan speed
of the climate control system is
reduced to save power.
Restart of the engine by the driverVehicles with manual transmission
Depress the clutch pedal to restart the
engine.When the engine is restarted, control
indicator D in the Driver Information
Centre extinguishes.
If the selector lever is shifted out of
neutral before depressing the clutch
pedal first, control indicator -
illuminates or is shown as a symbol in
the Driver Information Centre.
Control indicator - 3 93.Vehicles with manual transmission
automated
Release the brake pedal or move
selector lever out of D to restart the
engine.
When the engine is restarted, control
indicator D in the Driver Information
Centre extinguishes.
Restart 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 bonnet is opened.
● The driver's seat belt is unfastened and 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 vehicle is driven at least at walking speed.
● The climate control system requests an engine start.
● The air conditioning is manually switched on.
If the bonnet is not fully closed, a
warning message is displayed in the
Driver Information Centre.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during restart might be noticeable.
Driving and operating141Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.Caution
Fuel grades other than those listed on pages 3 177, 3 245 could
damage the catalytic converter or
electronic components.
Unburnt petrol will overheat and
damage the catalytic converter.
Therefore avoid excessive use of the starter, running the fuel tank
dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven
engine running, a reduction in engine performance or other unusual
problems, have the cause of the fault
rectified by a workshop as soon as
possible. In an emergency, driving
can be continued for a short period,
keeping vehicle speed and engine
speed low.
Automatic transmission
The automatic transmission permits
automatic gearshifting (automatic
mode) or manual gearshifting
(manual mode).
Manual shifting is possible in manual mode by pressing < or ] on the
selector lever 3 142.
Transmission display
The mode or selected gear is shown
in the Driver Information Centre.
In automatic mode, the driving
programme is indicated by D.
In manual mode, M and the number
of the selected gear is indicated.
R indicates reverse gear.
N indicates neutral position.
P indicates park position.
Selector leverP: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 shift mode
Driving and operating143If a higher gear is selected when
vehicle speed is too low, or a lower
gear when vehicle speed is too high,
the shift is not executed. This can
cause a message in the Driver
Information Centre.
In manual mode, no automatic
shifting to a higher gear takes place
at high engine revolutions.
Gear shift indication
The symbol R with a number beside
it is indicated when gearshifting is
recommended for fuel saving
reasons.
Shift indication appears only in
manual mode.
Electronic driving programmes
● Following a cold start, the operating temperature
programme increases engine
speed to quickly bring the
catalytic converter to the required
temperature.● The automatic neutral shift function automatically shifts to
idling when the vehicle is stopped
with a forward gear engaged and the brake pedal is pressed.
● Special programmes automatically adapt the shiftingpoints when driving up inclines or down hills.
● When starting off in snowy or icy conditions or on other slippery
surfaces, the electronic
transmission control selects a
higher gear automatically.
Kickdown
Pressing down the accelerator pedal
beyond the kickdown detent will lead to maximum acceleration
independent of selected driving
mode. The transmission shifts to a
lower gear depending on engine speed.Fault
In the event of a fault, control indicator
g illuminates. Additionally, a
message is displayed in the Driver
Information Centre. Vehicle
messages 3 103.
The transmission no longer shifts
automatically. Continued travel is
possible with manual shifting.
Only the highest gear is available.
Depending on the fault, 2nd gear may also be available in manual mode.
Shift only when the vehicle is at a
standstill.
Have the cause of the fault remedied by a workshop.
Interruption of power supply In the event of an interruption of
power supply, the selector lever
cannot be moved out of the P
position. The ignition key cannot be removed from the ignition switch.
If the vehicle battery is discharged,
start the vehicle using jump leads
3 230.
Driving and operating145Caution
It is not advisable to drive with thehand resting on the selector lever.
Gear shift indication 3 93.
Stop-start system 3 136.
Manual transmission
automated
The manual transmission automated permits manual gearshifting (manual
mode) or automatic gearshifting
(automatic mode), both with
automatic clutch control.
Manual shifting is possible by tapping the selector lever in manual mode.
Note
When unlocking or opening a
vehicle door, a sound may be
audible caused by the hydraulic
system.Transmission display
In automatic mode, the driving
programme is indicated by D in the
Driver Information Centre.
In manual mode, M and the number
of the selected gear is indicated.
R indicates reverse gear.
N indicates neutral.
Starting the engine
To start the engine, depress the brake
pedal, if transmission is not in position N .
146Driving and operatingTransmission automatically shifts to
N upon starting. There may be a slight
delay.
Starting is not possible if all brake
lights fail.
Stop-start-system
Autostop
If the vehicle is at a standstill and
brake pedal is operated, Autostop is
activated automatically.
The engine will be switched off while
the ignition stays on.
An Autostop is indicated by control
indicator D.
Autostart
Release the brake pedal or move selector lever out of D to restart the
engine.
When the engine is restarted, control
indicator D extinguishes in the Driver
Information Centre.
The stop-start system will be disabled
on inclines of 15% or more.
Stop-start-system 3 136.
Selector lever
Always move the selector lever in the
appropriate direction as far as it will
go. Upon release, it automatically
returns to the centre position.
Note
Do not hold the selector lever in an
intermediate position. Not fully
engaging a gear may lead to
malfunction and the error code 81
may be displayed in the Driver
Information Centre.
Return the selector lever to the
centre position. After a short while N
will be displayed in the Driver
Information Centre and the system
will operate normally again.
Vehicle messages 3 103.N:neutral positionD/M:switch between automatic (D)
and manual (M) shift mode.
The transmission display
shows either D or M with the
selected gear<:upshifting in manual mode]:downshifting in manual modeR:reverse gear. Engage only
when vehicle is stationary
If selector lever is moved from R to the
left, D is directly engaged.
If selector lever is moved from D to
< or ], manual mode M is selected
and the transmission shifts.
Driving and operating147Starting offDepress the brake pedal and move
the selector lever to D/M or R. If D is
selected, transmission is in automatic mode and first gear is engaged. If R
is selected, reverse gear is engaged.
The vehicle starts to move when the
brake pedal is released.
To start-off without depressing the
brake pedal, accelerate immediately
after engaging a gear as long as D or
R flashes.
If neither the accelerator nor the
brake pedal are depressed, no gear
is engaged and D or R flashes for a
brief time in the display.
Stopping the vehicle
In D, first gear is engaged and the
clutch is released when the vehicle is
stopped. In R, reverse gear remains
engaged.Engine braking
Automatic mode
When driving downhill, the manual
transmission automated does not shift into higher gears until a fairly
high engine speed has been reached. It shifts down in good time when
braking.
Manual mode
To utilise the engine braking effect,
select a lower gear in good time when
driving downhill. Changing into
manual mode is only possible while the engine is running or during an
Autostop.
Rocking the vehicle
Rocking the vehicle is only
permissible if the vehicle is stuck in
sand, mud or snow. Move the selector
lever between R and D in a repeat
pattern. Do not race the engine and
avoid sudden acceleration.Parking
The most recently engaged gear (see transmission display) remains
engaged when switching off ignition.
With N, no gear is engaged.
Therefore always apply the parking
brake when switching off ignition. If
parking brake is not applied, P flashes
in the transmission display and the
key cannot be removed from the
ignition switch. P stops flashing in the
transmission display as soon as the
parking brake is slightly applied.
When the ignition is switched off, the
transmission no longer responds to
movement of the selector lever.
Tyre pressure monitoring system To start the sensor matching process
of the tyre pressure monitoring
system, the selector lever must be
moved and held in position N for
five seconds. P illuminates in the
transmission display to indicate that
the sensor matching process can be
started.
Tyre pressure monitoring system
3 215.