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Climate control141
■Automatic mode AUTO
■ Cooling A/C
■ Air recirculation 4
■ Demisting and defrosting V
■ System ON/OFF X
■ Dual zone temperature
synchronisation SYNC
Heated rear window Ü 3 41.
Heated front seats ß 3 53.
Ventilated front seats A 3 54.
Heated steering wheel * 3 83.
IndicationTemperature settings are indicated
for driver and passenger side
separately on the panels.
Each change of settings is shown in
the Info-Display for a few seconds.
The dual automatic climate control
system is only fully operational when
the engine is running.
Climate control system settings are
saved in the key used to lock the vehicle.
Automatic mode AUTOBasic setting for maximum comfort: ■ Press AUTO, the air distribution
and fan speed are regulated
automatically. Activation is
indicated by the LED in the button.
■ Press A/C to switch on optimal
cooling and demisting. Activation is indicated by the LED in the button.
■ Set temperature by touching R or
S on the driver side. Suggested
comfort setting is 22 °C.
Temperature can be set differently
for driver and passenger. Touch R
or S on the passenger side to allow
different temperature zones.
■ Open all air vents to allow optimised air distribution in
automatic mode.
Setting of fan speed regulation in
automatic mode can be changed in the vehicle personalisation menu in
the Colour-Info-Display.
Select the relevant setting in Settings,
I Vehicle , in the Colour-Info-Display.
Colour-Info-Display 3 114.
Vehicle personalisation 3 118.
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Climate control145
Select the relevant settings in
Settings , I Vehicle in the Colour-Info-
Display.
Colour-Info-Display 3 114.
Vehicle personalisation 3 118.
Auxiliary heater
Air heater Quickheat is an electric auxiliary air
heater which automatically warms up
the passenger compartment more
quickly.Air vents
Adjustable air vents Front air vents
To open the vent, turn the adjuster
wheel to B. Adjust the air amount at the
vent outlet by turning the adjuster
wheel.
Direct the flow of air by tilting and swivelling the slats.
To close the vent, turn the adjuster
wheel to 7.
Page 150 of 321

148Driving and operatingDriving and operatingDriving hints............................... 148
Starting and operating ...............149
Engine exhaust .......................... 156
Automatic transmission .............. 157
Manual transmission ..................162
Drive systems ............................ 163
Brakes ........................................ 163
Ride control systems .................166
Driver assistance systems .........171
Fuel ............................................ 202
Trailer hitch ................................ 209Driving hints
Control of the vehicleNever coast with engine not
running (except during Autostop)
Many systems will not function in this
situation (e.g. brake servo unit, power steering). Driving in this manner is a
danger to yourself and others. All
systems function during an Autostop,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 153.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.Steering
If power steering assist is lost
because the engine stops or due to a
system malfunction, the vehicle can
be steered but may require increased
effort.
Control indicator c 3 103.Caution
Vehicles equipped with hydraulic
power steering:
If the steering wheel is turned until it reaches the end of its travel, and
is held in that position for more
than 15 seconds, damage may occur to the power steering
system and there may be loss of
power steering assist.
Page 151 of 321

Driving and operating149Starting and operating
New vehicle running-in Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period fuel and
engine oil consumption may be
higher and the cleaning process of the diesel particle filter may take
place more often.
Diesel particle filter 3 156.
Ignition switch positions
Turn key:0=Ignition off: some functions
remain active until key is
removed or driver's door is
opened, if ignition was on
previously.1=Accessory power mode:
Steering wheel lock released,
some electrical functions are
operable, ignition is off.2=Ignition on power mode: Ignition
is on, diesel engine is
preheating. Control indicators
light up and the most electrical
functions are operable.3=Engine start . Release key after
starting procedure begins.Steering wheel lock
Remove key from the ignition switch
and turn steering wheel until it
engages.
Power button
Electronic key must be inside the
vehicle.
Accessory power mode: press
Engine Start/Stop button once
without operating clutch or brake pedal. The yellow LED in the button
illuminates. Steering wheel lock is
released and some electrical
functions are operable, ignition is off.
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150Driving and operating
Ignition on power mode: press and
hold Engine Start/Stop button for
6 seconds without operating clutch or brake pedal. The green LED in the
button illuminates, diesel engine is
preheating. Control indicators light up
and the most electrical functions are
operable.
Engine start: operate clutch pedal
(manual transmission) or brake pedal (automatic transmission) and press
Engine Start/Stop button once more.
Release button after starting
procedure begins.
Ignition off: press Engine Start/Stop
button briefly in each mode or when
engine is running. Some functions
remain active until driver's door is
opened, if ignition was on before.
Steering wheel lock
The steering wheel lock activates
automatically when:
■ the vehicle is stationary and
■ the ignition has been switched off and
■ the driver's door is opened.To release steering wheel lock, open
and close driver's door and switch on accessory mode or start the engine
directly.9 Warning
If the vehicle battery is discharged,
the vehicle must not be towed,
tow-started or jump-started as the
steering wheel lock cannot be
disengaged.
Emergency operation on
vehicles with electronic key
system
If either the electronic key fails or the
battery of the electronic key is weak,
the Driver Information Centre may
display No Remote Detected or
Replace Battery in Remote Key when
you try to start the vehicle.Open the centre console storage area by lifting up the armrest. Place the
electronic key in the transmitter
pocket. Depress the clutch pedal
(manual transmission) or the brake
pedal (automatic transmission) and
press the Engine Start/Stop button.
To switch off the engine, press the Engine Start/Stop button again.
Remove the electronic key from the
transmitter pocket.
This option is intended for
emergencies only. Replace the
electronic key battery as soon as
possible 3 22.
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Driving and operating155
■ The stop-start system is manuallydeactivated
■ 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 the restart might be noticeable.Parking
■ Do not park the vehicle on an easily
ignitable surface. The high
temperature of the exhaust system
could ignite the surface.
■ Always apply parking brake. Pull electric parking brake switch
m for approx. one second.
Apply manual parking brake
without pressing release button.
Apply as firmly as possible on
downhill or uphill slopes. Depress the foot brake at the same time to
reduce operating force.
■ Switch off the engine and ignition. Turn the steering wheel until the
steering wheel lock engages.
■ If the vehicle is on a level surface or
uphill slope, engage first gear or set
the selector lever to P before
switching off the ignition. On an
uphill slope, turn the front wheels
away from the kerb.
If the vehicle is on a downhill slope, engage reverse gear or set theselector lever to P before switchingoff the ignition. Turn the front
wheels towards the kerb.
■ Lock the vehicle and activate the anti-theft alarm system.
Note
In the event of an accident with
airbag deployment, the engine is
turned off automatically if the vehicle comes to a standstill within a certain
time.
Page 159 of 321

Driving and operating157
The control indicator % extinguishes
as soon as the self-cleaning
operation is complete.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.Caution
Fuel grades other than those listed on pages 3 202, 3 269 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 tapping the selector lever or
pulling the steering wheel paddles
3 159.
Transmission display
Page 160 of 321

158Driving and operating
The driving programme in automatic
mode or the selected gear in manual
mode is indicated in the Driver
Information Centre.
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 vehicle is stationaryN=neutralD=automatic mode with all gears<=manual mode upshifting: move
selector lever to position D to
the left and tap forwards]=manual mode downshifting:
move selector lever to position
D to the left and tap backwards
The selector lever is locked in P and
can only be moved when the ignition is on and the brake pedal is applied.
Without applied brake pedal the
control indicator j illuminates.
If the selector lever is not in P when
the ignition is switched off, control
indicator j and P will flash.
To engage P or R, press the release
button.
The engine can only be started with
lever in position P or N. When position
N is selected, press brake pedal or
apply parking brake before starting.
Do not accelerate while engaging a
gear. Never depress the accelerator
pedal and brake pedal at the same
time.
When a gear is engaged, the vehicle
slowly begins to creep when the
brake is released.
Engine braking To utilise the engine braking effect,
select a lower gear in good time when
driving downhill, see manual mode.
Rocking the vehicle
Rocking the vehicle is only
permissible if the vehicle is stuck in
sand, mud or snow. Move the selector
lever between D and R in a repeat
pattern. Do not race the engine and
avoid sudden acceleration.