120Climate controlMaintenanceAir 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,
areas 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 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 3
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 operating127During 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 or too high.
● 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.
Notice
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 3 111.
If an autostop is temporarily not
available, D flashes green 3 87.
Immediately after driving at a higher
speed an Autostop may be inhibited.
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.
128Driving 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.
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 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. 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 . 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 with e on the
radio remote control.
Or with electronic key system
press marking on front door
handles 3 22.
● Activate the anti-theft alarm system 3 31.
● The engine cooling fans may run
after the engine has been
switched off 3 176.
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
192Vehicle careNo.Circuit1Fan climate control system2–3Body fuse box4–5Instrument panel fuse box6Engine cooling unit7Body control module8Engine control fuel pump9Engine controlNo.Circuit10Engine control11Engine control12Engine cooling unit13Body control module14Intelligent battery sensor15–16Front fog lights17–18High beam right19High beam left20Engine control fuel pump21Starter22–23Starter24Trailer hitch25Instrument panel fuse box26Transmission control moduleNo.Circuit27Body control module28Engine control module29Front wiper30Body control module
After having changed defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
Vehicle care193Instrument panel fuse boxFuse box on the left side of the
instrument panel
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 / rearNo.Circuit7Heated steering wheel8Rear wiper9–10Central locking system11Central locking system12Instrument cluster13Climate control system, USB14BTA module15Instrument cluster, climate
control system16Brake, starter, retained power
off17Instrument cluster18Advanced parking assist19Top column module, trailer
control module20–21Anti-theft alarm system, start
button
238IndexAAccessories and vehicle modifications .......................... 174
Active emergency braking ....88, 147
AdBlue .......................... 86, 130, 229
Adjustable air vents ...................119
Advanced parking assist ............153
Airbag and belt tensioners ...........83
Airbag deactivation ................54, 83
Airbag label................................... 49 Airbag system .............................. 49
Air conditioning regular operation ................................ 120
Air conditioning system .............. 111
Air intake .................................... 120
Air vents...................................... 119
Antilock brake system ................ 137
Antilock brake system (ABS) .......85
Anti-theft alarm system ................31
Anti-theft locking system .............. 30 Appearance care ........................211
Armrest ............................. 44, 45, 62
Ashtrays ....................................... 76
Automatic anti-dazzle ..................35
Automatic crash notification (ACN) 99
Automatic light control ...............102
Automatic locking ........................28
Automatic transmission .............133
Autostop ............................... 87, 126
Auxiliary heater ........................... 118B
Battery discharge protection ......109
Belts.............................................. 46
BlueInjection ............................... 130
Bonnet ....................................... 176
Brake and clutch system .............84
Brake assist ............................... 138
Brake fluid .......................... 179, 219
Brake light................................... 186
Brakes ............................... 137, 179
Breakdown.................................. 209
Bulb replacement ....................... 182
C Capacities .................................. 229
Catalytic converter .....................130
Central locking system ................23
Centre console lighting ..............108
Centre console storage ...............62
Changing tyre and wheel size ...199
Charging system .......................... 83
Child locks ................................... 28
Child restraint installation locations ................................... 58
Child restraints.............................. 55
Child restraint systems ................55
Cigarette lighter ........................... 76
Climate control ............................. 15
Climate control systems .............110
Clock............................................. 74
239Control indicators.......................... 82
Control of the vehicle .................122
Controls ........................................ 70
Convex shape .............................. 33
Coolant and antifreeze ...............219
Cornering lights .......................... 104
Cruise control ...................... 88, 140
Cupholders .................................. 61
Curtain airbag system .................. 53
D Danger, Warnings and Cautions ...4
Daytime running lights ...............104
Declaration of conformity ............231
DEF ............................................ 130
Deflation detection system ...........86
Diesel exhaust fluid ....................130
Diesel fuel system bleeding .......181
Door open .................................... 88
Doors ............................................ 29
Driver alert .................................. 164
Driver assistance systems ..........140
Driver Information Centre .............89
Driving characteristics and towing tips .............................. 169
Driving hints ................................ 122
E Electric adjustment ......................33
Electrical system......................... 191
Electronic climate control system 114Electronic driving programmes ..135
Electronic key system ...................22
Electronic Stability Control and Traction Control system ....85, 139
Electronic Stability Control and Traction Control system off .......86
Emergency call ............................. 99
End-of-life vehicle recovery .......175
Engine compartment fuse box ...191
Engine coolant ........................... 178
Engine coolant temperature ........86
Engine coolant temperature gauge ....................................... 80
Engine data ............................... 225
Engine exhaust .......................... 129
Engine identification ...................222
Engine oil ...........177, 219, 223, 229
Engine oil level monitor ................81
Engine oil pressure ......................87
Entry lighting .............................. 108
Event data recorders ..................234
Exhaust filter ......................... 86, 129
Exit lighting ................................ 108
Exterior care .............................. 211
Exterior light ................................. 87
Exterior lighting ....................12, 101
Exterior mirrors ............................. 33F
Fault ........................................... 135
First aid ......................................... 66
First aid kit ................................... 66
Fixed air vents ........................... 119
Floor mats................................... 214
Folding mirrors ............................. 34
Forward collision alert................. 145
Front airbag system .....................52
Front fog lights .............88, 105, 185
Front pedestrian protection ........149
Front seats.................................... 41
Fuel............................................. 166
Fuel for diesel engines ..............166
Fuel for petrol engines ...............166
Fuel gauge ................................... 80 Fuel tank ..................................... 229
Fuses ......................................... 191
G
Gauges ......................................... 79
Gear selection ........................... 133
Gear shifting ................................. 85
General information ...................169
Glass panel .................................. 38
Glovebox ..................................... 61
H Halogen headlights ....................182
Hand brake ......................... 137, 138
Hazard warning flashers ............104