Climate control133Air 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
140Driving and operatingActivation
The stop-start system is available as
soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.
Deactivation
Deactivate the stop-start system
manually by pressing Ò. The
deactivation is indicated when the
LED in the button illuminates.
AutostopVehicles with manual transmission
An Autostop can be activated at a
standstill.
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 transmissionIf 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 or too high.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
Driving and operating141● The self-cleaning function of theexhaust 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.
Climate control 3 124.
Immediately after higher speed
driving an Autostop may be inhibited.
New vehicle running-in 3 135.
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 aredisabled 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 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 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.
216Vehicle careEngine compartment fuse
box
The fuse box is in the front left of the
engine compartment.
Disengage the cover and remove it. Depending on the version, different
engine compartment fuse boxes are
available:
No.Circuit9Anti-theft alarm system10Stop-start system11Diesel exhaust system13Stop-start system15Electric power steering / Radar22Horn29StarterNo.Circuit1Climate control2Steering wheel4Electric parking brake6Air vent16Front fog lights18Right high beam (Halogen) /
Right headlight (LED)19Left high beam (Halogen) /
Right headlight (LED)21Starter
218Vehicle careNo.Circuit33Power outlet front36InfotainmentNo.Circuit1Interior mirror / Electrical power
steering wheel / Selective ride
control / Radar / Diesel exhaust
system3Trailer provisions control
module4HornNo.Circuit5Windscreen washer6Windscreen washer7Power outlet rear10Doors lock / Tailgate lock11Doors lock / Tailgate lock12Stop-start system / Diagnostic
connector module / Brake
system13Infotainment / Climate control
system14Alarm siren15Climate control system16Stop-start system / Brake
system17Instrument cluster19Column electrical assembly /
Steering wheel controls21Anti-theft alarm systemNo.Circuit22Camera / Rain sensor / Auto‐
matic light control23Seat belt reminder24Automatic transmission /
Advanced parking assist /
Panoramic view system25Airbag26Electronic Stability Control27Alarm28OnStar29Infotainment32Cigarette lighter / Power outlet front34Heated rear window / Heated
windscreen / Inductive charging35Light switch / Diagnostic
connector module36Lighting
264IndexAAccessories and vehicle modifications .......................... 201
Active emergency braking ....99, 170
Adaptive cruise control .........99, 162
AdBlue .................................. 97, 144
Adjustable air vents ...................131
Advanced parking assist ............178
Airbag and belt tensioners ...........93
Airbag deactivation ................59, 94
Airbag label................................... 54 Airbag system .............................. 54
Air conditioning regular operation ................................ 133
Air conditioning system .............. 124
Air intake .................................... 132
Air vents...................................... 131
Antilock brake system ................ 151
Antilock brake system (ABS) .......96
Anti-theft alarm system ................34
Anti-theft locking system .............. 34
Appearance care ........................235
Armrest ................................... 50, 51
Ashtrays ....................................... 87
Automatic anti-dazzle ..................38
Automatic light control ...............114
Automatic locking ........................27
Automatic transmission .............147
Autostop ............................... 98, 139
Auxiliary heater ........................... 131B
Battery discharge protection ......122
Battery voltage ........................... 104
BlueInjection ............................... 144
Bonnet ....................................... 203
Brake and clutch fluid .................240
Brake and clutch system .............95
Brake assist ............................... 153
Brake fluid .................................. 206
Brakes ............................... 151, 206
Breakdown.................................. 233
Bulb replacement ....................... 209
C Capacities .................................. 251
Catalytic converter .....................143
Central locking system ................23
Centre console lighting ..............121
Centre console storage ...............69
Changing tyre and wheel size ...223
Charging system .......................... 94
Child locks ................................... 28
Child restraint installation locations ................................... 64
Child restraints.............................. 61
Child restraint systems ................61
Cigarette lighter ........................... 86
Climate control ............................. 15
Climate control systems .............123
Clock............................................. 83
265Collision damage repair..............257
Control indicators.......................... 92
Control of the vehicle .................135
Controls ........................................ 79
Convex shape .............................. 37
Coolant and antifreeze ...............240
Cruise control ...................... 99, 157
Cupholders .................................. 68
Curtain airbag system .................. 59
Curve lighting.............................. 115
D
Danger, Warnings and Cautions ...4
Daytime running lights ...............115
Declaration of conformity ............254
DEF ............................................ 144
Deflation detection system ...........97
Diesel exhaust fluid ....................144
Diesel fuel system bleeding .......208
Door open .................................. 100
Doors ............................................ 29
Driver alert .................................. 191
Driver assistance systems ..........157
Driver Information Centre ...........100
Driving characteristics and towing tips .............................. 196
Driving hints ................................ 135
E Electric adjustment ......................37
Electrical system......................... 215Electric parking brake ...........95, 151
Electric parking brake fault ...........95
Electronic climate control system 127
Electronic driving programmes ..149
Electronic key system ...................22
Electronic Stability Control and Traction Control system ....96, 154
End-of-life vehicle recovery .......203
Engine compartment fuse box ...216
Engine coolant ........................... 205
Engine coolant temperature ........96
Engine coolant temperature gauge ....................................... 91
Engine data ............................... 247
Engine exhaust .......................... 143
Engine identification ...................243
Engine oil ................... 204, 240, 244
Engine oil level monitor ................91
Engine oil pressure ......................97
Entry lighting .............................. 121
Event data recorders ..................260
Exhaust filter ......................... 97, 143
Exit lighting ................................ 122
Exterior care .............................. 235
Exterior light ................................. 98
Exterior lighting ....................12, 113
Exterior mirrors ............................. 37F
Fault ........................................... 149
First aid ......................................... 75
First aid kit ................................... 75
Fixed air vents ........................... 132
Folding mirrors ............................. 37
Forward collision alert................. 169
Front airbag system .....................58
Front fog lights .............99, 119, 210
Front pedestrian protection ........173
Front seats.................................... 45
Fuel............................................. 193
Fuel for diesel engines ..............193
Fuel for petrol engines ...............193
Fuel gauge ................................... 91
Fuses ......................................... 215
G Gauges ......................................... 90
Gear shifting ................................. 96
General information ...................196
Glass panel .................................. 42
Glovebox ..................................... 68
Glovebox cooler ......................... 132
H Halogen headlights ....................209
Hazard warning flashers ............118
Headlight flash ........................... 114
Headlight range adjustment ......115
Headlights................................... 113