Driving and operating167● The driver's door is closed or thedriver'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 above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 149.Immediately after motorway driving,
an Autostop may be inhibited.
New vehicle running-in 3 162.
Vehicle battery discharge protection
To ensure reliable engine restarts, several battery discharge protection
features are implemented as part of
the stop-start system.
Power saving measures
During an Autostop, several electrical
features e.g. auxiliary electric heater
or heated rear window 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.Late restart
All engines have late restart in
addition to conventional restart. Late
restart is only active on gradients up to 5%.
● Depress the brake pedal.
● Depress the clutch pedal.
● Select first gear.
● Release the brake pedal to restart the engine.
Vehicles with automatic transmission
Release the brake pedal or move
selector lever out of D into N or P to
restart the engine.
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 bonnet is opened.
168Driving and operating● The driver's seat belt isunfastened 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 the bonnet is not fully closed, a
warning message is displayed in the
Driver Information Centre.
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. Pull switch m for
approx. one second and check
if the control indicator m
illuminates.
The electric parking brake is applied when control indicator
m illuminates 3 108.
● 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
switching off ignition. 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 switching off ignition.
Turn the front wheels towards
the kerb.
● Close the windows and the sunroof.
● Switch off ignition with power button. Turn the steering wheel
until the steering wheel lock is
felt to engage.
● Lock the vehicle with button on the door handle.
Activate the anti-theft alarm
system 3 33.
● The engine cooling fans may run
after the engine has been
switched off 3 240.
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
approx. 30 seconds before
switching off, in order to protect
the turbocharger.
Driving and operating195Detecting the vehicle ahead
The green illuminated vehicle ahead
control indicator A is displayed when
the system detects a vehicle in the driving path. The range of the sensors
is between 25 and 150 metres
depending on vehicle speed.
Forward collision alert 3 198.
If this symbol does not display, or
displays briefly, adaptive cruise
control will not respond to vehicles ahead.
Deactivation Adaptive cruise control is deactivatedby the driver when:
● y is pressed.
● Brake pedal is applied.
● Clutch pedal is depressed for more than four seconds.
● Selector lever of automatic transmission is moved to N.
The system is also automatically deactivated when:
● Vehicle speed accelerates above
190 km/h or slows down below
25 km/h, on vehicles with
automatic transmission it slows
down to a stop without
deactivating within five minutes.
● The Traction Control system is deactivated or operating.
● The Electronic Stability Control is
deactivated or operating.
● There is no traffic and nothing detected on the road sides forapprox. one minute. In this casethere are no radar echoes and
the sensor may report that it is
blocked.
● The active emergency braking system is applying the brakes.
● Driving on steep inclines.
● The radar sensor is blocked by an ice or water film.● A fault is detected in the radar,camera, engine or brake system.
● The brakes need to cool down.
Additionally, the system is
automatically deactivated on vehicles
with automatic transmission (full
speed range adaptive cruise control)
when:
● The incline uphill or downhill is greater than 20 %.
● The electric parking brake is applied.
● The vehicle is being held to a stop
by the system for more than
five minutes.
● The vehicle stops, the driver's seat belt is unbuckled and thedriver's door is opened.
When adaptive cruise control is
deactivated, the control indicator m
changes from green to white and a
pop-up message is displayed in the
Driver Information Centre.
The stored speed is maintained.
204Driving and operatingIf equipped only with front camera the
system operates up to a speed of 85
km/h.9 Warning
Active emergency braking is not
designed to apply hard
autonomous braking or to
automatically avoid a collision. It is designed to reduce the vehicle
speed before a collision. It may not
react to animals. After a sudden
lane change, the system needs a
certain time to detect the next
preceding vehicle.
The complete attention of the
driver is always required while
driving. The driver must always be
ready to take action and apply the brakes and steer to avoid
collisions.
The system is designed to work with
all occupants wearing their seat belts.
Intelligent Brake Assist
If the vehicle is equipped with radar
sensor Intelligent brake assist may
activate when the brake pedal is
applied quickly by providing a boost
to braking based on the speed of
approach and distance to a vehicle
ahead.
Minor brake pedal pulsations or pedal movement during this time is normal
and the brake pedal should continue
to be applied as needed. Intelligent
brake assist will automatically
disengage only when the brake pedal is released.9 Warning
Intelligent brake assist may
increase vehicle braking in
situations when it may not be
necessary. You could block the
flow of traffic. If this occurs, take
your foot off the brake pedal and
then apply the brakes as needed.
Front pedestrian protection
3 205.
Deactivation
Active emergency braking can be
deactivated in the personalisation
menu 3 126. If deactivated a
message is displayed in the Driver
Information Centre.
System limitations In some cases, the active emergencybraking system may provide an
automatic braking in situations that
seem to be unnecessary, for instance
in parking garages, due to traffic signs
in a curve or due to vehicles in
another lane. This is normal
operation, the vehicle does not need service. Firmly apply the accelerator
pedal to override the automatic
braking if the situation and the
surroundings permit.
In the following cases, Active
emergency braking performance is limited:
● Driving on winding or hilly roads.
● Detecting all vehicles, especially vehicles with a trailer, tractors,
muddy vehicles, etc.
Vehicle care263Tyre designations
E.g. 215/60 R 16 95 V215:tyre width, mm60:cross-section ratio (tyre height
to tyre width), %R:belt type: RadialRF:type: RunFlat16:wheel diameter, inches95:load index e.g. 95 is equivalent to 690 kgV:speed code letter
Speed code letter:
Q:up to 160 km/hS:up to 180 km/hT:up to 190 km/hH:up to 210 km/hV:up to 240 km/hW:up to 270 km/h
Choose a tyre appropriate for the
maximum speed of your vehicle.
The maximum speed is achievable at
kerb weight with driver (75 kg) plus
125 kg payload. Optional equipment
could reduce the maximum speed of
the vehicle.
Performance 3 294.
Directional tyres
Directional tyres should be mounted
so that they rotate in the correct
direction. The proper rotation
direction is indicated by a symbol (e.g. an arrow) on the sidewall.
Tyre pressure
Check the pressure of cold tyres at
least every 14 days and before any
long journey. Do not forget the spare
wheel. This also applies to vehicles
with tyre pressure monitoring system.
Tyre pressure 3 301.
The tyre pressure information label
on the left door frame indicates the
original equipment tyres and the
correspondent tyre pressures.
The tyre pressure data refers to cold
tyres. It applies to summer and winter tyres.
Always inflate the spare tyre to the
pressure specified for full load.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
Make sure tyre loading setting
matches the current tyre pressure.
Tyre loading 3 264.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
Tyre pressures differ depending on
various options. For the correct tyre
pressure value, follow the procedure
below:
1. Identify drive axle and body style.
2. Identify the engine identifier code.
Engine data 3 293.
3. Identify the respective tyre.
282Vehicle careUnderbody
Some areas of the vehicle underbody
have a PVC undercoating while other critical areas have a durable
protective wax coating.
After the underbody is washed, check
the underbody and have it waxed if
necessary.
Bitumen/rubber materials could
damage the PVC coating. Have
underbody work carried out by a
workshop.
Before and after winter, wash the
underbody and have the protective
wax coating checked.
Liquid gas system9 Danger
Liquid gas is heavier than air and
can collect in sink points.
Take care when performing work
at the underbody in a pit.
For painting work and when using a
drying booth at a temperature above
60 °C, the liquid gas tank must be
removed.
Do not make any modifications to the
liquid gas system.
Towing equipment
Do not clean the coupling ball bar with a steam-jet or high-pressure jet
cleaner.
Interior care
Interior and upholstery
Only clean the vehicle interior,
including the instrument panel fascia
and panelling, with a dry cloth or
interior cleaner.
Clean the leather upholstery with
clear water and a soft cloth. In case of heavy soiling, use leather care.
The instrument cluster and the
displays should only be cleaned using
a soft damp cloth. If necessary use a
weak soap solution.Clean fabric upholstery with a
vacuum cleaner and brush. Remove
stains with an upholstery cleaner.
Clothing fabrics may not be
colourfast. This could cause visible
discolourations, especially on light-
coloured upholstery. Removable
stains and discolourations should be
cleaned as soon as possible.
Clean seat belts with lukewarm water or interior cleaner.Caution
Close Velcro fasteners as open
Velcro fasteners on clothing could
damage seat upholstery.
The same applies to clothing with
sharp-edged objects, like zips or
belts or studded jeans.
316IndexAAccessories and vehicle modifications .......................... 238
Active bonnet ................................ 70
Active emergency braking ..........202
Adaptive cruise control .......112, 190
AdBlue ................................ 110, 171
Adjustable air vents ...................158
Airbag and belt tensioners .........107
Airbag deactivation ..............62, 107
Airbag label................................... 57
Airbag system .............................. 57
Air conditioning regular operation ................................ 160
Air conditioning system .............. 149
Air intake .................................... 159
Air vents...................................... 158
All-wheel drive ........................... 179
Antilock brake system ................ 179
Antilock brake system (ABS) .....109
Anti-theft alarm system ................33
Anti-theft locking system .............. 33
Appearance care ........................280
Armrest ................................... 52, 54
Armrest storage ........................... 73
Ashtrays ....................................... 96 Automatic anti-dazzle ..................39
Automatic dimming ......................38
Automatic light control ...............136
Automatic locking ........................26Automatic transmission .............174
Autostop ..................................... 166
Auxiliary heater ........................... 158
B Baselevel display ........................113
Battery discharge protection ......147
Battery voltage ........................... 125
Belts.............................................. 55 BlueInjection ............................... 171
Bonnet ....................................... 240
Brake and clutch fluid .................285
Brake and clutch system ...........108
Brake assist ............................... 181
Brake fluid .................................. 243
Brakes ............................... 179, 243
Breakdown.................................. 278
Bulb replacement ....................... 246
C Capacities .................................. 300
Cargo management system ........80
Catalytic converter .....................170
Central locking system ................22
Centre console lighting ..............146
Centre console storage ...............73
Changing tyre and wheel size ...267
Charging system ........................ 108
Child locks ................................... 27
Child restraint installation locations ................................... 66
319Preheating ................................. 110
Puncture ..................................... 272
Q
Quickheat ................................... 158
R Radio Frequency Identification (RFID) ..................................... 315
REACH ....................................... 311
Reading lights ............................ 145
Rear cross traffic alert ................223
Rear floor storage cover ..............79
Rear fog light .....................112, 143
Rear seats .................................... 54
Rear storage ................................. 79
Rear view camera ...................... 221
Rear window wiper/washer .......... 91
Recommended fluids and lubricants ........................ 285, 290
Refuelling ................................... 232
Registered trademarks ...............314
Retained power off .....................164
Reversing lights .........................144
Ride control systems ..................182
Roof .............................................. 42
Roof load ...................................... 85
Roof rack ..................................... 84S
Safety belts ................................... 55
Safety net .................................... 80
Seat adjustment ............................. 6 Seat belt ........................................ 8
Seat belt reminder .....................106
Seat belts ..................................... 55
Seat heating Seat heating, front .....................53
Seat heating, rear .....................54
Seat position ................................ 46
Selective catalytic reduction .......171
Service ............................... 160, 284
Service display .......................... 105
Service information ....................284
Side airbag system ......................61
Side blind zone assistant ............215
Sidelights .................................... 135
Side turn signal lights ................255
Software acknowledgement .......312
Software update ......................... 313
Spare wheel ............................... 275
Speed limiter....................... 112, 189
Speedometer ............................. 102
Starting and operating ................162
Starting off ................................... 18
Starting the engine ....................164
Steering ...................................... 162
Steering wheel adjustment ......9, 88
Steering wheel controls ...............88Stop-start system........................ 166
Storage ......................................... 72
Storage compartments .................72
Sunglasses storage .....................73
Sunroof ........................................ 42
Sunvisor lights ........................... 146
Sun visors .................................... 42
Symbols ......................................... 4
T Tachometer ............................... 104
Tail lights ................................... 250
Three-point seat belt .................... 56
Tools .......................................... 261
Tow bar....................................... 234
Towing ................................ 234, 278
Towing another vehicle .............279
Towing equipment .....................236
Towing hitch installation dimensions ............................. 305
Towing the vehicle .....................278
Traction Control system ............. 182
Traction Control system off......... 110
Traffic sign assistant ...........112, 224
Trailer coupling ........................... 234
Trailer stability assist .................237
Trailer towing ............................. 235
Transmission ............................... 17
Tread depth ............................... 266
Trip odometer ............................ 103