Climate control133Air vents
Adjustable air vents At least one air vent must be open
while the cooling is on.
Adjust the air amount at the vent
outlet by turning the adjuster wheel.
The vent is closed when the adjuster wheel is turned close to the left or
right.
Direct the flow of air by tilting and
swivelling the slats.
9 Warning
Do not attach any objects to the
slats of the air vents. Risk of
damage and injury in case of an
accident.
Fixed air vents
Additional air vents are located
beneath the windscreen and door windows and in the foot wells.
Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Pollen filter The pollen filter cleans dust, soot,
pollen and spores from the air
entering the vehicle through the air
intake.
134Climate controlAir conditioning regularoperation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a
month, irrespective of the weather
and time of year. Operation with
cooling is not possible when the
outside temperature is too low.
Service For optimal cooling performance, it is recommended to annually check the
climate control system, starting
three years after initial vehicle
registration, including:
● functionality and pressure test
● heating functionality
● leakage check
● check of drive belts
● cleaning of condenser and evaporator drainage
● performance check
140Driving and operating● The engine exhaust temperatureis not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
'Climate control' chapter for further
information 3 128.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 136.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 92.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.
Driving and operating141● The brake vacuum is notsufficient.
● 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.
Parking9 Warning
● Do not park the vehicle on an
easily ignitable surface. The
high temperature of the
exhaust system could ignite the
surface.
● Always apply the parking brake. Activate the manual
parking brake without pressing the release button. Apply as
firmly as possible on a downhill slope or uphill slope. Depress
brake pedal at the same time to
reduce operating force.
● Switch off the engine.
● If the vehicle is on a level surface or uphill slope, engage
first gear or set the selector
lever to position P before
removing the ignition key. 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 the selector lever to position
P before removing the ignition
key. Turn the front wheels
towards the kerb.
● Close the windows and the sunroof.
● Remove the ignition key from the ignition switch. Turn the
steering wheel until thesteering wheel lock is felt to
engage.
For vehicles with automatic
transmission, the key can only
be removed when the selector
lever is in position P.
For vehicles with manual
transmission automated, the
key can only be removed from
the ignition switch when the
parking brake is applied.
● Lock the vehicle.
● Activate the anti-theft alarm system.
● The engine cooling fans may run
after the engine has been
switched off 3 191.
Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low load or run in neutral for
approx. 30 seconds before
switching off, in order to protect
the turbocharger.
260IndexAAccessories and vehicle modifications .......................... 190
Adjustable air vents ...................133
Airbag and belt tensioners ...........90
Airbag deactivation ................48, 91
Airbag label................................... 43 Airbag system .............................. 43
Air conditioning regular operation ................................ 134
Air conditioning system .............. 126
Air intake .................................... 133
Air vents...................................... 133
Antilock brake system ................ 151
Antilock brake system (ABS) .......92
Anti-theft alarm system ................27
Anti-theft locking system .............. 26
Appearance care ........................232
Ashtrays ....................................... 83
Automatic anti-dazzle ..................30
Automatic light control ...............115
Automatic locking ........................24
Automatic transmission .............143
Autostop ....................................... 95
B Battery discharge protection ......123
Battery voltage ........................... 106 Belts.............................................. 40
Bicycle rack .................................. 59Bonnet ....................................... 191
Brake and clutch fluid .................237
Brake and clutch system .............92
Brake assist ............................... 152
Brake fluid .................................. 195
Brakes ............................... 151, 195
Breakdown.................................. 230
Bulb replacement ....................... 198
C Capacities .................................. 251
Car Pass ...................................... 21
Catalytic converter .....................143
Central locking system ................22
Centre high-mounted brake light 205
Changing tyre and wheel size ...218
Charging system .......................... 91
Child locks ................................... 25
Child restraint installation locations ................................... 51
Child restraints.............................. 49
Child restraint systems ................49
Cigarette lighter ........................... 82
City mode ................................... 155
Climate control ............................. 15 Climate control systems .............125
Clock ............................................ 80
Code ........................................... 103
Collision damage repair ..............256
Colour-Info-Display .....................101
261Control indicators.......................... 87
Control of the vehicle .................136
Controls ........................................ 76
Convex shape .............................. 28
Coolant and antifreeze ...............237
Corner lighting ............................ 117
Cruise control ...................... 95, 156
Cupholders .................................. 57
Curtain airbag system .................. 48
D Danger, Warnings and Cautions ...4
Daytime running lights ...............117
Declaration of conformity ............254
Diesel fuel system bleeding .......197
Diesel particle filter ...............93, 142
Door open .................................... 95
Doors ............................................ 25
Driver assistance systems ..........156
Driver Information Centre .............96
Driving characteristics and towing tips .............................. 184
Driving hints ................................ 136
E Easy entry..................................... 38
Electric adjustment ......................28
Electrical system......................... 206
Electronic climate control system 128
Electronic driving programmes . ........................................ 145, 150Electronic Stability Control.......... 154
Electronic Stability Control and Traction Control system ............93
Electronic Stability Control off....... 93
End-of-life vehicle recovery .......190
Engine compartment fuse box ...207
Engine coolant ........................... 193
Engine coolant temperature gauge ....................................... 86
Engine data ............................... 244
Engine exhaust .......................... 142
Engine identification ...................240
Engine oil ................... 192, 237, 241
Engine oil pressure ......................94
Entry lighting .............................. 122
Event data recorders ..................258
Exit lighting ................................ 123
Exterior care .............................. 232
Exterior light ................................. 95
Exterior lighting ....................12, 114
Exterior mirrors ............................. 28
F
Fault ................................... 146, 150
First aid ......................................... 72
First aid kit ................................... 72
Fixed air vents ........................... 133
Flex-Fix system ............................ 59
Fog light ....................................... 95
Fog lights ................................... 202Folding mirrors ............................. 29
Following distance indication ......161
Forward collision alert................. 159
Front airbag system .....................46
Front fog lights ........................... 119
Front seats.................................... 36
Front storage ................................ 58
Front turn signal lights ...............202
Fuel............................................. 178
Fuel consumption - CO 2-
Emissions ............................... 183
Fuel for diesel engines ..............178
Fuel for liquid gas operation .......179
Fuel for petrol engines ...............178
Fuel gauge ................................... 85 Fuel selector ................................ 85
Fuses ......................................... 206
G Gauges ......................................... 83
Gear shifting ................................. 92
General information ...................184
Glovebox ..................................... 57
Graphic-Info-Display ...................102
H Halogen headlights ....................198
Hand brake ......................... 151, 152
Hazard warning flashers ............118
Headlight flash ........................... 116
Headlight range adjustment ......116