128Climate controlAir vent in the glovebox
The air vent can be opened or closedby turning.
At least two air vents must be open
while cooling is on.
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.
Cabin air filter
Change filter regulary for maximum
effect.
More frequent passenger
compartment air filter replacement
may be needed, if you drive in areas
with heavy traffic, poor air quality,
Climate control129areas with high dust levels or which
are sensitive to environmental
allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced air flow, windows
fogging up, or odors.
Your dealer can help to determine
when it is the right time to replace the
filter.
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
● cabin air filter check
Driving and operating137Indication
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 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 temperatureis not too high, e.g. after driving
with high engine load.
● The ambient temperature is not too low.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
Otherwise an Autostop will be
inhibited.
Note
The Autostop may be inhibited for
several hours after a battery
replacement or reconnection.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 119.
If an autostop is temporarily not
available, D flashes green 3 93.
Immediately after driving at a higher
speed an Autostop may be inhibited.
New vehicle running-in 3 131.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 such as auxiliary electric
heater or rear window heating are
disabled or switched to a power
saving mode. The fan speed of the
climate control system is reduced to
save power.
Restart of the engine by the driver
Vehicles with manual transmissionConventional restart
All engines have conventional restart.
Depress the clutch pedal without
depressing the brake pedal to restart
the engine.
On engines with late restart a
conventional restart is only possible
without depressed brake pedal.
138Driving and operatingRestart of the engine by the stop-
start system
The selector lever must be in neutralto 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 driver's seat belt is unfastened or 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 climate control system requests an engine start.
● The air conditioning is manually switched on.
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.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 or
switching off ignition on
vehicles with power button. 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 or switching off ignition on
vehicles with power button.
Turn the front wheels towards
the kerb.
● Close the windows.
● Remove the ignition key from the ignition switch or switch off
ignition on vehicles with power
button. Turn the steering wheel until the steering wheel lock is
felt to engage.
● Lock the vehicle.
● Activate the anti-theft alarm system.
● The engine cooling fans may run
after the engine has been
switched off 3 188.
Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low
202Vehicle care
Place the fuse extractor on the
various types of fuse from the top or
side, and withdraw fuse.
Engine compartment fuse
box
The fuse box is in the front left of the
engine compartment.
Disengage the cover and remove it.
No.Circuit1Fan climate control system2–3Body fuse box4–5Instrument panel fuse box6Engine cooling unit7Body control module8Engine control fuel pump9Engine control
204Vehicle care
In right-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox and
remove the cover.
No.Circuit1Interior mirror / Exhaust
system / Electric power
steering / Clutch sensor / LPG /
Exterior mirror adjustment /
Inductive charging2–3Trailer Hitch4Horn5Windscreen washer pump front/
rear6Windscreen washer pump front/ rear7Heated steering wheel8Rear wiper9–10Central locking system11Central locking system12Instrument cluster13Climate control system / USBNo.Circuit14OnStar15Instrument cluster / Climate
control system16Brake / Starter / Retained power off17Instrument cluster18Advanced parking assist19Top column module / Trailer
control module20–21Anti-theft alarm system / Start
button22Rain sensor / Camera23Door module24Advanced parking assist /
Camera / Infotainment25Airbag26Top column module27Anti-theft alarm system
254IndexAAccessories and vehicle modifications .......................... 186
Active emergency braking ....94, 157
Adaptive forward lighting ...........111
AdBlue .................................. 92, 140
Adjustable air vents ...................127
Advanced parking assist ............163
Airbag and belt tensioners ...........89
Airbag deactivation ................56, 89
Airbag label................................... 51 Airbag system .............................. 51
Air conditioning regular operation ................................ 129
Air conditioning system .............. 119
Air intake .................................... 128
Air vents...................................... 127
Antilock brake system ................ 147
Antilock brake system (ABS) .......91
Anti-theft alarm system ................32
Anti-theft locking system .............. 31
Appearance care ........................223
Armrest ................................... 46, 47
Ashtrays ....................................... 79 Automatic anti-dazzle ..................36
Automatic light control ...............110
Automatic locking ........................28
Automatic transmission .............143
Autostop ............................... 93, 136
Auxiliary heater ........................... 126B
Battery discharge protection ......117
Battery voltage ........................... 101 Belts.............................................. 48
BlueInjection ............................... 140
Bonnet ....................................... 188
Brake and clutch fluid .................228
Brake and clutch system .............90
Brake assist ............................... 148
Brake fluid .................................. 191
Brakes ............................... 147, 191
Breakdown.................................. 221
Bulb replacement ....................... 193
C Capacities .................................. 240
Catalytic converter .....................140
Central locking system ................24
Centre console lighting ..............116
Centre console storage ...............64
Changing tyre and wheel size ...210
Charging system .......................... 89
Child locks ................................... 29
Child restraint installation locations ................................... 60
Child restraints.............................. 57
Child restraint systems ................57
Cigarette lighter ........................... 79
Climate control ............................. 16
Climate control systems .............118
255Clock............................................. 77
Control indicators.......................... 88
Control of the vehicle .................131
Controls ........................................ 73
Convex shape .............................. 34
Coolant and antifreeze ...............228
Cruise control ...................... 94, 150
Cupholders .................................. 63
Curtain airbag system .................. 55
D Danger, Warnings and Cautions ...4
Daytime running lights ...............111
Declaration of conformity ............243
DEF ............................................ 140
Deflation detection system ...........92
Diesel exhaust fluid ....................140
Diesel fuel system bleeding .......192
Diesel particle filter ...............92, 139
Door open .................................... 94
Doors ............................................ 30
Driver alert .................................. 175
Driver assistance systems ..........150
Driver Information Centre .............94
Driving characteristics and towing tips .............................. 182
Driving hints ................................ 131
E
Electric adjustment ......................34
Electrical system......................... 201Electronic climate control system 122
Electronic driving programmes ..145
Electronic key system ...................23
Electronic Stability Control and Traction Control system ....91, 149
Electronic Stability Control and Traction Control system off .......91
End-of-life vehicle recovery .......187
Engine compartment fuse box ...202
Engine coolant ........................... 190
Engine coolant temperature ........92
Engine coolant temperature gauge ....................................... 86
Engine data ............................... 235
Engine exhaust .......................... 139
Engine identification ...................231
Engine oil ................... 189, 228, 232
Engine oil level monitor ................87
Engine oil pressure ......................92
Entry lighting .............................. 116
Event data recorders ..................249
Exit lighting ................................ 116
Exterior care .............................. 223
Exterior light ................................. 93
Exterior lighting ....................13, 109
Exterior mirrors ............................. 34
F Fault ........................................... 145
First aid ......................................... 69First aid kit ................................... 69
Fixed air vents ........................... 128
Fog light ....................................... 93
Fog lights ................................... 196
Folding mirrors ............................. 35
Forward collision alert................. 155
Front airbag system .....................54
Front fog lights ........................... 113
Front pedestrian protection ........159
Front seats.................................... 43
Fuel............................................. 176
Fuel for diesel engines ..............176
Fuel for liquid gas operation .......177
Fuel for petrol engines ...............176
Fuel gauge ................................... 85
Fuel selector ................................ 85
Fuses ......................................... 201
G Gauges ......................................... 84
Gear shifting ................................. 91
General information ...................181
Glass panel .................................. 40
Glovebox ..................................... 63
H
Halogen headlights ....................193
Hand brake ......................... 147, 148
Hazard warning flashers ............112
Headlight flash ........................... 110
Headlight range adjustment ......111