
Lighting143Interior lighting
Instrument panel
illumination control
Brightness of the following lights can
be adjusted in position AUTO when
the light sensor detects night
conditions, or in position 8 or 9.
● instrument panel illumination
● Info-Display
● illuminated switches and operation elements
Turn thumb wheel A and hold until
the desired brightness is obtained.
Interior lights
During entry and exit of the vehicle,
the front and rear courtesy lights
automatically switch on and then off
after a delay.
Note
In the event of an accident with
airbag deployment the courtesy
lights are turned on automatically.
Front courtesy lightw:automatic switching on
and offpress u:onpress v:offRear courtesy lights
Illuminate in conjunction with the front courtesy light.
Reading lights
Operated by pressing s and t in the
courtesy lights.

Driving and operating161Vehicles with power button
Manual transmission: operate clutch
and brake pedal.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Manual transmission automated:
operate brake pedal.
Do not operate accelerator pedal.
Press and release Engine Start/Stop:
an automatic procedure operates the
starter with a short delay until the
engine is running, see automatic
starter control.
Before restarting or to switch off the
engine when vehicle is stationary, press Engine Start/Stop once more
briefly.
To start the engine during an
Autostop:
● Manual transmission: during an Autostop, the engine can be
started by depressing the clutch
pedal 3 162.
● Automatic transmission or manual transmission automated:
during an Autostop, the engine
can be started by releasing the
brake pedal 3 162.
Emergency shut off during driving
If the engine needs to be switched off during driving in case of emergency,
press Engine Start/Stop for longer
than two seconds or press twice
briefly within five seconds.9 Danger
Switching off the engine during
driving may cause loss of power
support for brake and steering
systems. Assistance systems and
airbag systems are disabled.
Lighting and brake lights will
extinguish. Therefore power down the engine and ignition while
driving only when required in case of emergency.
Starting the vehicle at low
temperatures
Starting the engine without additional
heaters is possible down to -25 °С for
diesel engines and -30 °C for petrol
engines. Required is an engine oil
with the correct viscosity, the correct fuel, performed services and a
sufficiently charged vehicle battery.
With temperatures below -30 °C the
automatic transmission requires a
warming phase of approx.
five minutes. The selector lever must
be in position P.
Automatic starter control
This function controls the engine
starting procedure. The driver does
not need to hold the key in position 3
or to hold Engine Start/Stop pressed.
Once applied, the system will go on

166Driving and operatingbutton. Turn the steering wheel
until the steering wheel lock is
felt to engage.
For vehicles with automatic
transmission, the key can only
be removed when the selector
lever is in position P.
For vehicles with manual
transmission automated, the key can only be removed from
the ignition switch when the
parking brake is applied.
● Lock the vehicle.
● Activate the anti-theft alarm system.
● The engine cooling fans may run
after the engine has been
switched off 3 231.
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.
Note
In the event of an accident with
airbag deployment, the engine is
switched off automatically if the
vehicle comes to a standstill within a
certain time.
Emergency operation under
extreme cold temperatures
9 Warning
This emergency operation may
only be carried out in case of
extremely cold temperatures and if the vehicle is parked on a levelsurface.
In countries with extreme cold
temperatures it may be necessary to
park the vehicle without applied
parking brake.
This is an emergency operation to
avoid freezing of the parking brake.
Vehicles equipped with manual
transmission automated, electric
parking brake and power button
On vehicles with manual transmission
automated the ignition can only be
switched off if the parking brake is
applied. Therefore the following items must be carried out to release the
electric parking brake:
1. Apply electric parking brake and switch off ignition.
2. Switch on ignition by pressing and
holding Engine Start/Stop for six
seconds without operating brake
pedal.
3. Press brake pedal and release electric parking brake.
4. Switch off ignition.
Vehicles equipped with manual
transmission automated, electric
parking brake and ignition switch
On vehicles with manual transmission
automated the ignition can only be
switched off if the parking brake is
applied. Therefore the following items
must be carried out to release the
electric parking brake:

Vehicle care251No.Circuit1Rear seat heating (only for vehi‐cles without alarm horn)2Climate control system, fan3Power seat driver side4Power seat passenger side5–6Power window front7ABS8Heated steering wheel9Body control module 810Power window rear11Sunroof12Body control module 413Seat heating (only on vehicles
without alarm horn)14Exterior mirror15Body control module 116Body control module 7No.Circuit17Body control module 618Body control module 319Data link connector20Airbag system21Climate control system22Central locking system, tailgate23Electronic key system24Power seat memory function25Airbag system steering wheel26Ignition switch/Steering column
lock27Body control module 228USB socket29Cigarette lighter/Power outlet
front30Selector lever31Rear window wiper32Transmission control module

306Customer informationOperating data in the vehicleControl units process data for
operation of the vehicle.
This data includes, e.g.: ● vehicle status information (e.g. wheel rotation rate, speed,
movement delay, lateral
acceleration, "seatbelts
fastened" display),
● ambient conditions (e.g. temperature, rain sensor,
distance sensor).
As a rule such data is transient, not
stored for longer than an operational
cycle, and only processed on board
the vehicle itself. Control units often
include data storage (including the vehicle key). This is used to allowinformation to be documented
temporarily or permanently on vehicle
condition, component stress,
maintenance requirements and
technical events and errors.Depending on the technical
equipment level, the data stored is as follows:
● system component operating states (e.g. fill level, tyre
pressure, battery status)
● faults and defects in important system components (e.g. lights,
brakes)
● system reactions in special driving situations (e.g. triggeringof an airbag, actuation of the
stability control systems)
● information on events damaging the vehicle
● for electric vehicles the amount of
charge in the high-voltage
battery, estimated range
In special cases (e.g. if the vehicle
has detected a malfunction), it may be
necessary to save data that would
otherwise just be volatile.
When you use services (e.g. repairs,
maintenance), the operating data
saved can be read together with the
vehicle identification number and
used when necessary. Staff working
for the service net-work ( e.g. garages,manufacturers) or third parties (e.g.
breakdown services) can read the
data from the vehicle. The same
applies to warranty work and quality
assurance measures.
Data is generally read via the OBD
(On-Board Diagnostics) port
prescribed by law in the vehicle. The operating data which is read out,
documents the technical condition of
the vehicle or individual components
and assists with fault diagnosis,
compliance with warranty obligations
and quality improvement. This data,
in particular information on
component stress, technical events,
operator errors and other faults, is
transmitted to the manufacturer
where appropriate, together with the
vehicle identification number. The
manufacturer is also subject to
product liability. The manufacturer
potentially also uses operating data
from vehicles for product recalls. This
data can also be used to check
customer warranty and guarantee
claims.
Fault memories in the vehicle can be
reset by a service company when
carrying out servicing or repairs.

310IndexAAccessories and vehicle modifications .......................... 229
Active emergency braking ..........198
Adaptive cruise control .......114, 187
AdBlue ................................ 112, 169
Adjustable air vents ...................154
Airbag and belt tensioners .........109
Airbag deactivation ..............64, 109
Airbag label................................... 59
Airbag system .............................. 59
Air conditioning regular operation ................................ 155
Air conditioning system .............. 147
Air intake .................................... 155
Air vents...................................... 154
Antilock brake system ................ 178
Antilock brake system (ABS) .....111
Anti-theft alarm system ................37
Anti-theft locking system .............. 37
Appearance care ........................275
Armrest ................................... 54, 56
Armrest storage ........................... 73
Ashtrays ....................................... 99 Automatic anti-dazzle ..................42
Automatic light control ...............136
Automatic locking ........................30
Automatic transmission .............171
Autostop ..................................... 162
Auxiliary heater ........................... 154B
Battery discharge protection ......145
Battery voltage ........................... 124 Belts.............................................. 57
BlueInjection ............................... 169
Bonnet ....................................... 231
Brake and clutch fluid .................279
Brake and clutch system ...........110
Brake assist ............................... 181
Brake fluid .................................. 234
Brakes ............................... 178, 234
Breakdown.................................. 273
Bulb replacement ....................... 237
C Capacities .................................. 294
Cargo management system ........83
Catalytic converter .....................168
Central locking system ................25
Centre console lighting ..............144
Changing tyre and wheel size ...262
Charging system ........................ 110 Child locks ................................... 31
Child restraint installation locations ................................... 68
Child restraints.............................. 66
Child restraint systems ................66
Climate control ............................. 16
Climate control systems .............146
Clock............................................. 96

311CNG.................................... 105, 221
Control indicators........................ 108
Control of the vehicle .................157
Controls ........................................ 92
Convex shape .............................. 40
Coolant and antifreeze ...............279
Cruise control ....................114, 184
Cupholders .................................. 72
Curtain airbag system .................. 64
Curve lighting.............................. 137
D
Danger, Warnings and Cautions ...4
Daytime running lights ...............137
Declaration of conformity ............298
DEF ............................................ 169
Diesel exhaust fluid ....................169
Diesel fuel system bleeding .......236
Door open .................................. 115
Doors ............................................ 31
Driver assistance systems ..........184
Driver Information Centre ...........115
Driving characteristics and towing tips .............................. 224
Driving hints ................................ 157
E Electric adjustment ......................40
Electrical system......................... 247
Electric parking brake .........110, 179
Electric parking brake fault .........110Electronic climate control system 149
Electronic driving programmes . ........................................ 173, 177
Electronic key system ...................23
Electronic Stability Control.......... 182
Electronic Stability Control and Traction Control system ..........111
Electronic Stability Control off..... 111
End-of-life vehicle recovery .......230
Engine compartment fuse box ...248
Engine coolant ........................... 233
Engine coolant temperature gauge ..................................... 106
Engine data ............................... 287
Engine exhaust .......................... 167
Engine identification ...................283
Engine oil ................... 232, 279, 284
Engine oil pressure ....................112
Entry lighting .............................. 144
Event data recorders ..................305
Exhaust filter ....................... 112, 167
Exit lighting ................................ 144
Exterior care .............................. 275
Exterior light ............................... 113
Exterior lighting ....................13, 135
Exterior mirrors ............................. 40
F
Fault ................................... 173, 177
First aid kit ................................... 88Fixed air vents ........................... 154
Folding mirrors ............................. 40
Following distance ......................111
Following distance indication ......197
Forward collision alert................. 195
Front airbag system .....................63
Front fog lights ...........114, 141, 239
Front seats.................................... 48
Front storage ................................ 73
Fuel............................................. 219
Fuel for diesel engines ..............220
Fuel for natural gas operation ...221
Fuel for petrol engines ...............219
Fuel gauge ................................. 105
Fuel selector .............................. 105
Fuses ......................................... 247
G
Gauges ....................................... 103
Gear shifting ............................... 111
General information ...................224
Glovebox ..................................... 72
H Halogen headlights ....................237
Hand brake ......................... 178, 179
Hazard warning flashers ............140
Headlight flash ........................... 136
Headlight range adjustment ......136
Headlights................................... 135 Headlights when driving abroad 137

313Power seat adjustment ................51
Power windows ............................ 42
Preheating ................................. 112
Puncture ..................................... 266
Q
Quickheat ................................... 154
R Radio Frequency Identification (RFID) ..................................... 308
Radio remote control ...................22
REACH ....................................... 302
Reading lights ............................ 143
Rear floor storage cover ..............82
Rear fog light .............114, 142, 240
Rear seats .................................... 56
Rear storage ................................. 80
Rear view camera ...................... 210
Rear window wiper and washer ..95
Recommended fluids and lubricants ........................ 279, 284
Refuelling ................................... 221
Registered trademarks ...............305
Retained power off .....................160
Reversing lights .........................142
Ride control systems ..................181
Roof .............................................. 45
Roof load ...................................... 89
Roof rack ..................................... 89S
Safety belts ................................... 57
Safety net .................................... 85
Seat adjustment ............................. 7 Seat belt ........................................ 8
Seat belt reminder .....................108
Seat belts ..................................... 57
Seat heating Seat heating, front .....................55
Seat heating, rear .....................57
Seat position ................................ 48
Selective catalytic reduction .......169
Selector lever ..................... 172, 176
Service ............................... 155, 278
Service display .......................... 107
Service information ....................278
Side airbag system ......................63
Side blind spot alert ....................209
Sidelights .................................... 135
Side turn lights ........................... 246
Software acknowledgement .......302
Software update ......................... 304
Spare wheel ............................... 266
Speed limiter....................... 114, 186
Speedometer ............................. 103
Sport mode ................................ 183
Starting and operating ................157
Starting off ................................... 17
Starting the engine ....................160
Steering ...................................... 157Steering wheel adjustment ......9, 92
Steering wheel controls ...............92
Stop-start system........................ 162
Storage ......................................... 72
Storage compartments .................72
Sunroof ........................................ 45
Sunvisor lights ........................... 144
Sun visors .................................... 44
Symbols ......................................... 4
T
Tachometer ............................... 105
Tail lights ................................... 240
Three-point seat belt .................... 58
Tools .......................................... 254
Tow bar....................................... 224 Towing ................................ 224, 273
Towing another vehicle .............274
Towing equipment .....................225
Towing the vehicle .....................273
Traction Control system ............. 181
Traction Control system off......... 112
Traffic sign assistant ...........114, 212
Trailer coupling ........................... 224
Trailer stability assist .................228
Trailer towing ............................. 224
Transmission ............................... 16
Transmission display .........171, 175
Tread depth ............................... 261
Trip odometer ............................ 104