126Climate controlThe 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
3 103.
Air 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.
Climate control127Maintenance
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.
Air conditioning regular
operation 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
132Driving and operating
Indication
An Autostop is indicated by control
indicator D.
During an Autostop, the heating and
brake performance will be
maintained.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled:
■ The stop-start system is not manually deactivated.
■ The bonnet is fully closed.
■ The driver's door is closed or the driver's seat belt is fastened.
■ The vehicle battery is sufficiently charged and in good condition.
■ The engine is warmed-up.
■ The engine coolant temperature is not too high.
■ The engine exhaust temperature is
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 3 121.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 129.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 (DIC) 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 DIC.
Control indicator - 3 89.
Driving and operating133
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 DIC 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.
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 foot
brake 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. Turn the steering wheel until the
steering wheel lock is felt to
engage.
For vehicles with automatic
transmission, the key can only
242IndexAAccessories and vehicle modifications .......................... 176
Adjustable air vents ...................126
Airbag and belt tensioners ...........88
Airbag deactivation ................46, 88
Airbag label................................... 41 Airbag system .............................. 41
Air conditioning regular operation ................................ 127
Air conditioning system .............. 119
Air intake .................................... 127
Air vents...................................... 126
Antilock brake system ................ 143
Antilock brake system (ABS) .......89
Anti-theft alarm system ................26
Anti-theft locking system .............. 26
Appearance care ........................219
Ashtrays ....................................... 81
Automatic anti-dazzle ..................29
Automatic light control ...............109
Automatic locking ........................24
Automatic transmission .............136
Autostop ....................................... 92
B Battery discharge protection ......117
Battery voltage ........................... 103 Belts.............................................. 38Bicycle rack .................................. 58
Bonnet ....................................... 178
Brake and clutch fluid .................223
Brake and clutch system .............89
Brake assist ............................... 144
Brake fluid .................................. 181
Brakes ............................... 143, 181
Breakdown.................................. 217
Bulb replacement ....................... 184
C Capacities .................................. 236
Car Pass ...................................... 20
Catalytic converter .....................135
Central locking system ................22
Centre high-mounted brake light 192
Changing tyre and wheel size ...205
Charging system .......................... 88
Child locks ................................... 24
Child restraint installation locations ................................... 50
Child restraints.............................. 48
Child restraint systems ................48
Cigarette lighter ........................... 81
City mode ................................... 146
Climate control ............................. 15 Climate control systems .............118
Clock ............................................ 79
Code ........................................... 100
Colour-Info-Display .......................98
243
Control indicators.......................... 85
Control of the vehicle .................128
Controls ........................................ 74
Convex shape .............................. 28
Coolant and antifreeze ...............223
Corner lighting ............................ 111
Cruise control ...................... 92, 147
Cupholders .................................. 56
Curtain airbag system .................. 46
D Danger, Warnings and Cautions ...3
Daytime running lights ...............110
Declaration of conformity ............239
Diesel fuel system bleeding .......184
Diesel particle filter ...............91, 134
Door open .................................... 93
Doors ............................................ 25
Driver assistance systems ..........147
Driver Information Centre .............93
Driving characteristics and towing tips .............................. 171
Driving hints ................................ 128
E Easy entry..................................... 37
Electric adjustment ......................28
Electrical system......................... 193
Electronic climate control system 121Electronic driving programmes .
........................................ 138, 142
Electronic Stability Control.......... 145
Electronic Stability Control and Traction Control system ............90
End-of-life vehicle recovery .......177
Engine compartment fuse box ...194
Engine coolant ........................... 180
Engine coolant temperature gauge ....................................... 84
Engine data ............................... 230
Engine exhaust .......................... 134
Engine identification ...................226
Engine oil ................... 178, 223, 227
Engine oil pressure ......................91
Entry lighting .............................. 116
Event data recorders ..................240
Exit lighting ................................ 116
Exterior care .............................. 219
Exterior light ................................. 92
Exterior lighting ....................12, 108
Exterior mirrors ............................. 28
F
Fault ................................... 138, 143
First aid ......................................... 71
First aid kit ................................... 71
Fixed air vents ........................... 126
Flex-Fix system ............................ 58
Fog light ....................................... 92Fog lights ................................... 188
Folding mirrors ............................. 28
Following distance indication ......152
Forward collision alert................. 150
Front airbag system .....................44
Front fog lights ........................... 113
Front seats.................................... 35
Front storage ................................ 57
Front turn signal lights ...............188
Fuel............................................. 168
Fuel consumption - CO 2-
Emissions ............................... 170
Fuel for diesel engines ..............169
Fuel for petrol engines ...............168
Fuel gauge ................................... 83
Fuses ......................................... 193
G Gauges ......................................... 82
Gear shifting ................................. 89
General information ...................171
Glovebox ..................................... 56
Graphic-Info-Display .....................99
H
Halogen headlights ....................184
Hand brake ......................... 143, 144
Hazard warning flashers ............112
Headlight flash ........................... 109
Headlight range adjustment ......110