144Climate controlFixed air vents
Additional air vents are located
beneath the windscreen, the 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.
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
Driving and operating151Deactivation
Deactivate the stop-start system
manually by pressing Ò. The
deactivation is indicated when the
LED in the button illuminates.
Autostop
Vehicles with manual transmission
An Autostop can be activated at a
standstill or at a speed below
20 km/h.
Activate an Autostop as follows: ● Depress the clutch pedal.
● Set the selector lever to neutral.
● Release the clutch pedal.The engine will be switched off while
the ignition stays on.Vehicles with automatic transmission If the vehicle is at a standstill with
depressed brake pedal, Autostop is
activated automatically.
The engine will be switched off while
the ignition stays on.
The stop-start system will be disabled
on inclines of 12% or more.
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 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 not too low.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the exhaust filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.
152Driving and operatingNote
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.
Climate control 3 134.
Immediately after higher speed
driving an Autostop may be inhibited.
New vehicle running-in 3 146.
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 transmission
Depress the clutch pedal without
depressing the brake pedal to restart the engine.
Vehicles with automatic transmission The engine is restarted if
● the brake pedal is released while
the selector lever is in position D
or M
● or the brake pedal is released or the selector lever is in position N
when the selector lever is moved
to position D or M
● or the selector lever is moved to position R.
Restart 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 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 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.
232Vehicle careRemove the cover by pulling at the
top left, then at the right side.No.Circuit1Inductive charging, clutch
switch, selective ride control,
power steering, diesel exhaust
system, interior mirror4Horn6Windscreen washer7Power outlet rear10Door lockNo.Circuit12Diagnostic connector, power
supply transformer13Head-up display, climate
control, Infotainment system14Anti-theft alarm system, tele‐
matic unit15Automatic transmission, instru‐
ment cluster, climate control16Starter, power supply trans‐
former17Instrument cluster19Trailer socket, steering wheel
controls21Anti-theft system, power button22Rear view camera, rain and light sensor23Seat belt reminder, special
vehicle control module, start-
stop, trailer socketNo.Circuit24Parking assist, Infotainment
system, rear view camera, side
blind spot camera25Airbag26Steering angle sensor27Parking heater29Infotainment system31-32Power outlet34Parking assist, interior mirror35Diagnostic connector, headlight
range adjustment, heated wind‐ screen, climate control36Interior lights, USB port
276IndexAAccessories and vehicle modifications .......................... 214
Active emergency braking ..110, 182
Adaptive cruise control .......110, 174
AdBlue ................................ 108, 155
Adjustable air vents ...................143
Advanced parking assist ............190
Airbag and belt tensioners .........104
Airbag deactivation ..............65, 105
Airbag label................................... 60 Airbag system .............................. 60
Air conditioning regular operation ................................ 144
Air conditioning system .............. 134
Air intake .................................... 144
Air vents...................................... 143
Antilock brake system ................ 162
Antilock brake system (ABS) .....107
Anti-theft alarm system ................36
Anti-theft locking system .............. 36 Appearance care ........................250
Armrest ......................................... 52
Ashtrays ....................................... 99
Automatic anti-dazzle ..................41
Automatic crash notification (ACN) ...................................... 122
Automatic light control ...............125
Automatic locking ........................29Automatic transmission .............158
Autostop ............................. 109, 150
B Battery discharge protection ......132
BlueInjection ............................... 155
Bonnet ....................................... 216
Brake and clutch system ...........106
Brake assist ............................... 165
Brake fluid .......................... 219, 257
Brakes ............................... 162, 219
Breakdown.................................. 247
Bulb replacement ....................... 222
C Capacities .................................. 266
Cargo management system ........81
Catalytic converter .....................154
Central locking system ................26
Centre console lighting ..............131
Centre console storage ...............76
Changing tyre and wheel size ...237
Charging system ........................ 105
Child locks ................................... 29
Child restraint installation locations ................................... 69
Child restraints.............................. 66
Child restraint systems ................66
Child surveillance mirror ...............41
Cigarette lighter ........................... 98
Climate control ............................. 17
277Climate control systems.............133
Clock............................................. 96
Colour Info Display .....................118
Control indicators........................ 103
Control of the vehicle .................146
Controls ........................................ 92
Convex shape .............................. 39
Coolant and antifreeze ...............257
Cruise control ....................110, 170
Cupholders .................................. 72
Curtain airbag system .................. 64
D Danger, Warnings and Cautions ...4
Daytime running lights ...............127
Declaration of conformity ............269
DEF ............................................ 155
Deflation detection system .........108
Descent control system .....107, 167
Diesel exhaust fluid ....................155
Diesel fuel system bleeding .......221
Door open .................................. 110
Doors ................................ 31, 32, 33
Driver alert .................................. 204
Driver assistance systems ..........170
Driver Information Centre ...........111
Driving characteristics and towing tips .............................. 209
Driving hints ................................ 146E
Eco mode ................................... 160
Electric adjustment ......................39
Electrical system......................... 230
Electric parking brake. 106, 162, 163
Electric parking brake fault .........106
Electronic climate control system 137
Electronic driving programmes ..160
Electronic key system ...................24
Electronic Stability Control and Traction Control system ..107, 166
Emergency call ........................... 122
End-of-life vehicle recovery .......216
Engine compartment fuse box ...231
Engine coolant ........................... 218
Engine coolant temperature ......107
Engine coolant temperature gauge ..................................... 102
Engine data ............................... 263
Engine exhaust .......................... 154
Engine identification ...................260
Engine oil ................... 217, 257, 261
Engine oil level monitor ..............102
Engine oil pressure ....................108
Entry lighting .............................. 131
Event data recorders ..................271
Exhaust filter ....................... 108, 154
Exit lighting ................................ 131
Exterior care .............................. 250
Exterior light ............................... 109Exterior lighting ....................14, 124
Exterior mirrors ............................. 39
F
Fault ........................................... 160
First aid ......................................... 87
First aid kit ................................... 87
Fixed air vents ........................... 144
Floor mats................................... 252
Folding front passenger seat ........50
Folding mirrors ............................. 39
Folding seats .......................... 53, 54
Footwell storage ........................... 76
Forward collision alert................. 181
Front airbag system .....................63
Front fog lights ...........109, 128, 225
Front passenger seat Table position ............................ 50
Front pedestrian protection ........185
Front seats.................................... 48
Front storage ................................ 73
Front turn lights .......................... 226
Fuel............................................. 205
Fuel for diesel engines ..............206
Fuel for petrol engines ...............205
Fuel gauge ................................. 101
Fuses ......................................... 230
G Gauges ....................................... 100
Gear selection ........................... 158