120Climate control● 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 operating127The engine will be switched off whilethe 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 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.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 3 110.
If an autostop is temporarily not
available, D flashes green 3 86.
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.
128Driving and operatingRestart 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 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.
Vehicle care191Engine compartment fusebox
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 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 module
Vehicle care193No.Circuit7Heated steering wheel8Rear wiper9–10Central locking system11Central locking system12Instrument cluster13Climate control system, USB14OnStar15Instrument cluster, climate
control system16Brake, starter, retained power
off17Instrument cluster18Advanced parking assist19Top column module, trailer
control module20–21Anti-theft alarm system, start
buttonNo.Circuit22Rain sensor, front camera23Door module24Advanced parking assist,
camera, Infotainment25Airbag26Top column module27Anti-theft alarm system28–29Infotainment30–31Infotainment32Power outlet front33–34Heated exterior mirrors, door
moduleNo.Circuit35Instrument cluster, light switch,
advanced parking assist, trans‐
mission control module36Courtesy lights, sun visor lights,
glovebox light
Fuse box on the right side of the
instrument panel
In left-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox and
remove the cover. Remove the
bracket.
246IndexAAccessories and vehicle modifications .......................... 174
Active emergency braking ....87, 147
AdBlue .......................... 85, 130, 230
Adjustable air vents ...................118
Advanced parking assist ............153
Airbag and belt tensioners ...........82
Airbag deactivation ................54, 82
Airbag label................................... 49 Airbag system .............................. 49
Air conditioning regular operation ................................ 119
Air conditioning system .............. 110
Air intake .................................... 119
Air vents...................................... 118
Antilock brake system ................ 137
Antilock brake system (ABS) .......84
Anti-theft alarm system ................31
Anti-theft locking system .............. 30 Appearance care ........................210
Armrest ............................. 44, 45, 62
Ashtrays ....................................... 76
Automatic anti-dazzle ..................35
Automatic crash notification (ACN) 98
Automatic light control ...............101
Automatic locking ........................28
Automatic transmission .............133
Autostop ............................... 86, 126
Auxiliary heater ........................... 117B
Battery discharge protection ......108
Belts.............................................. 46
BlueInjection ............................... 130
Bonnet ....................................... 176
Brake and clutch system .............83
Brake assist ............................... 139
Brake fluid .......................... 179, 219
Brake light................................... 185
Brakes ............................... 137, 179
Breakdown.................................. 208
Bulb replacement ....................... 182
C Capacities .................................. 230
Catalytic converter .....................130
Central locking system ................23
Centre console lighting ..............107
Centre console storage ...............62
Changing tyre and wheel size ...198
Charging system .......................... 82
Child locks ................................... 28
Child restraint installation locations ................................... 58
Child restraints.............................. 55
Child restraint systems ................55
Cigarette lighter ........................... 76
Climate control ............................. 15
Climate control systems .............109
Clock............................................. 74
247Control indicators.......................... 81
Control of the vehicle .................122
Controls ........................................ 70
Convex shape .............................. 33
Coolant and antifreeze ...............219
Cornering lights .......................... 103
Cruise control ...................... 87, 140
Cupholders .................................. 61
Curtain airbag system .................. 53
D Danger, Warnings and Cautions ...4
Daytime running lights ...............103
Declaration of conformity ............232
DEF ............................................ 130
Deflation detection system ...........85
Diesel exhaust fluid ....................130
Diesel fuel system bleeding .......181
Door open .................................... 87
Doors ............................................ 29
Driver alert .................................. 164
Driver assistance systems ..........140
Driver Information Centre .............88
Driving characteristics and towing tips .............................. 169
Driving hints ................................ 122
E Electric adjustment ......................33
Electrical system......................... 190
Electronic climate control system 113Electronic driving programmes ..135
Electronic key system ...................22
Electronic Stability Control and Traction Control system ....84, 139
Electronic Stability Control and Traction Control system off .......85
Emergency call ............................. 98
End-of-life vehicle recovery .......175
Engine compartment fuse box ...191
Engine coolant ........................... 178
Engine coolant temperature ........85
Engine coolant temperature gauge ....................................... 79
Engine data ............................... 226
Engine exhaust .......................... 129
Engine identification ...................222
Engine oil ...........177, 219, 223, 230
Engine oil level monitor ................79
Engine oil pressure ......................85
Entry lighting .............................. 107
Event data recorders ..................240
Exhaust filter ......................... 85, 129
Exit lighting ................................ 107
Exterior care .............................. 210
Exterior light ................................. 86
Exterior lighting ....................12, 100
Exterior mirrors ............................. 33F
Fault ........................................... 135
First aid ......................................... 66
First aid kit ................................... 66
Fixed air vents ........................... 119
Floor mats................................... 213
Folding mirrors ............................. 34
Forward collision alert................. 145
Front airbag system .....................52
Front fog lights .............86, 104, 185
Front pedestrian protection ........149
Front seats.................................... 41
Fuel............................................. 166
Fuel for diesel engines ..............166
Fuel for petrol engines ...............166
Fuel gauge ................................... 79 Fuel tank ..................................... 230
Fuses ......................................... 190
G
Gauges ......................................... 77
Gear selection ........................... 134
Gear shifting ................................. 84
General information ...................169
Glass panel .................................. 39
Glovebox ..................................... 61
H Halogen headlights ....................182
Hand brake ......................... 137, 138
Hazard warning flashers ............103