Driving and operating129Driving and
operatingDriving hints ............................... 129
Driving economically ...............129
Control of the vehicle ...............130
Steering ................................... 130
Starting and operating ...............131
New vehicle running-in ............131
Ignition switch positions ...........131
Power button ........................... 131
Starting the engine ..................133
Idle speed control ....................134
Vehicle shutdown ....................134
Overrun cut-off ........................ 135
Stop-start system ....................135
Parking .................................... 138
Engine exhaust .......................... 139
Diesel particle filter ..................139
Catalytic converter ...................139
AdBlue ..................................... 140
Manual transmission ..................145
Brakes ........................................ 146
Antilock brake system .............146
Parking brake .......................... 147Brake assist............................. 147
Hill start assist ......................... 147
Ride control systems .................148
Traction Control system ..........148
Electronic stability program .....149
Driver assistance systems .........151
Cruise control .......................... 151
Speed limiter ........................... 153
Parking assist .......................... 154
Rear view camera ...................156
Fuel ............................................ 159
Fuel for diesel engines ............159
Refuelling ................................ 159
Trailer hitch ................................ 161
General information .................161
Driving characteristics and towing tips .............................. 161
Trailer towing ........................... 161
Trailer stability assist ...............162Driving hints
Driving economically ECO mode
ECO mode is a function that
optimises fuel consumption. It affects engine power and torque,
acceleration, gear shift indication,
heating, air conditioning and electrical consumers.
Activation
Press ECO. Control indicator ECO
illuminates in the instrument cluster when activated.
172Vehicle caredisconnecting the main vehicle
battery or before jump starting the vehicle.
The terminals are designed for
additional electrical consumers up to a maximum of 50 A.
Jump starting 3 196.
Diesel fuel filter The diesel fuel filter is accessible from
the underside of the vehicle.
Drain filter of residual water at every
engine oil change.
Place a container underneath the
filter housing. Loosen the knurled
screw on the lower part of the filter by approx. one turn, to drain off the
water.
The filter is drained as soon as water-
free diesel fuel emerges. Retighten
the screw.
Check diesel fuel filter at shorter
intervals if the vehicle is subjected to
extreme operating conditions.
Diesel fuel system bleeding
If the fuel tank has been run dry, it will be necessary to air vent or bleed the
diesel fuel system.
Refuel then proceed as follows:With ignition key
● Switch on the ignition (key to position 2) for 5 seconds at a
time.
● Switch off ignition (key to position
1 ) for 3 seconds.
● Repeat this process multiple times.
● Start the engine (key to position 3) then switch off (key to position
0 ).
Ignition switch positions 3 131.
Vehicle care183No.Circuit1Battery backup (with electronic
key system)2Adaptations3Adaptations4Vehicle battery (with electronic key system)5Additional heating and ventila‐
tion / Air conditioning system6Supplementary heating and
ventilation system7Electric exterior mirrors / Addi‐
tional adaptations8Heated exterior mirrors9Radio / Multimedia / Electric
exterior mirrors / Diagnostic
socket10Multimedia / Trailer hitch11Courtesy lights / Battery
discharge protectionNo.Circuit12Right-hand high beam / Left-
hand low beam / Sidelights /
Right-hand daytime running
light13Hazard warning flashers / Turn
lights14Central locking15Left-hand high beam / Right-
hand low beam / Tail lights /
Left-hand daytime running light16Front fog lights / Rear fog lights /
Number plate lighting17Alarm / Horn / Lighting / Wiper18Instrument cluster19Heating and ventilation system20Rear window wiper / Wind‐
screen washer pump / Horn21General battery22Reversing lights23Brake switchNo.Circuit24Fuel injection / Starter25Airbag / Steering column lock26Passenger power window27Power steering28Brake lights29Battery backup (with electronic
key system)30Service display31Cigarette lighter / Power outlet32Heating and ventilation system33Brake lights / ABS / Immobiliser34Interior lighting / Air conditioning35Starting with electronic key
system36Rear window wiper37Warning chimes38Load compartment power outlet39Driver power window
184Vehicle careNo.Circuit40Rear power outlet41Starting / Body control module42Heated seats43Tachograph44Windscreen wiper45Heating / Air conditioning
After having changed defective fuses,
replace the trim panel.
Vehicle tools
Tools
The jack, wheel wrench, wheel bolt
sleeve, torx key, adapters, wheel
cover hook, towing eye are contained
in a unit, stowed under the driver's
seat.
Slide seat forwards and fold the
backrest forwards 3 46 to access the
tool box. The tool box may be secured
in position with a wing nut. Rotate
wing nut anticlockwise to release.
Wheel changing 3 193.
Spare wheel 3 195.
Vehicles with tyre repair kit: The wheel cover hook and torx key are
stored within the tyre repair kit case,
stowed under the driver's seat.
Tyre repair kit 3 190.
Vehicle care187Trailer towingWhen towing a trailer with a fully
laden vehicle, the tyre pressure must
be increased by 20 kPa/0.2 bar
(3.0 psi) and the maximum speed
limited to 60 mph.
Trailer towing 3 161.
Tyre pressure monitoring
system
The tyre pressure monitoring system
uses radio and sensor technology to
check tyre pressure levels.Caution
Tyre pressure monitoring system
warns only about low tyre pressure condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with pressure sensors and the tyres must
have the prescribed pressure.
Notice
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle operating permit.
The tyre pressure monitoring system
sensors monitor the air pressure in
the tyres and transmit tyre pressure
readings to a receiver located in the
vehicle.
Tyre pressure chart 3 220.
Low tyre pressure conditionA detected low tyre pressure
condition is indicated by illumination
of control indicator w 3 99 and a
corresponding message appears in
the Driver Information Centre.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 220.
After inflating, some driving may be
required to update the tyre pressure
values in the system. During this time
w may illuminate.
If w illuminates at lower temperatures
and extinguishes after some driving,
this could be an indicator for
approaching a low tyre pressure
condition. Check tyre pressure of all
four tyres.
If the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise w flashes for
several seconds then illuminates
continuously together with control
indicator j 3 97 and a corresponding
message appears in the Driver
Information Centre.
226Customer informationThis data includes, for example:● 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).
Most of this data is volatile and is
processed only in the vehicle itself, and not beyond the operating time.
Moreover, many control units include
data storage device (amongst others the vehicle key). This is used to allow
information to be documented
temporarily or permanently on vehicle condition, component stress,
maintenance requirements and
technical events and errors.
The following information, for
example, is stored:
● System component operating states (e.g. fill level, tyre
pressure, battery status),
● State of charge of the high voltage battery, estimated range
(in the case of electric vehicles),● 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.
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, the operating
data saved can be read together with the vehicle identification number andused if 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. Services
include repair services, maintenance
processes, warranty cases 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 has been read
out documents the technical conditionof 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 needs operating data
from vehicles for product recalls.
Fault memories in the vehicle can be
reset by a service company when
carrying out servicing or repairs.
Comfort and infotainment
functions
Comfort settings and custom settings
can be stored in the vehicle and
changed at any time.
Customer information227Depending on the equipment level in
question, these include
● Seat and steering wheel position settings,
● Chassis and air conditioning settings,
● Custom settings such as interior lighting.
You can input your own data in the
infotainment functions for your
vehicle as part of the selected
features.
Depending on the equipment level in
question, these include
● Multimedia data such as music, videos or photos for playback in
an integrated multimedia system,
● Address book data for use with an integrated hands-free system
or an integrated navigation
system,
● Input destinations,
● Data on the use of online services.
This data for comfort and
infotainment functions can be stored
locally in the vehicle or be kept on adevice that you have connected to the
vehicle ( e.g. a smartphone, USB stick
or MP3 player). Data that you have input yourself can be deleted at any
time.
This data can only be transmitted out
of the vehicle at your request,
particularly when using online
services in accordance with the
settings selected by you.
Smartphone integration, e.g.
Android Auto or Apple CarPlay
If your vehicle is equipped
accordingly, you can connect your
smartphone or another mobile device
to the vehicle so that you can control
it via the controls integrated in the
vehicle. The smartphone image and
sound can be output via the
multimedia system in this case. At the same time, specific information is
transmitted to your smartphone.
Depending on the type of integration,
this includes data such as position
data, day / night mode and other
general vehicle information. For moreinformation, please see the operating
instructions for the vehicle /
infotainment system.
Integration allows selected
smartphone apps to be used, such as
navigation or music playback. No
further integration is possible
between smartphone and vehicle, in particular active access to vehicledata. The nature of further data
processing is determined by the
provider of the app used. Whether
you can define settings, and if so
which ones, is dependent on the app
in question and your smartphone's
operating system.
230IndexAAbsorptive Glass Mat battery .....170
Accessories and vehicle modifications .......................... 164
AdBlue .................. 99, 104, 140, 204
AdBlue tank ................................ 219
Adjustable air vents ...................127
AGM battery ............................... 170
Airbag and belt tensioners ...........96
Airbag deactivation ................62, 96
Airbag label............................. 58, 62
Airbag system .............................. 58
Air conditioning regular operation ................................ 128
Air conditioning system .............. 117
Air intake .................................... 128
Air recirculation ...................117, 198
Air vents...................................... 127
Alert ............................................ 103
Antifreeze ................................... 168
Antilock brake system ................ 146
Antilock brake system (ABS) .......98
Anti-theft alarm system ................36
Anti-theft bolts............................. 193
Anti-theft locking system .............. 35
Anti-theft security lock ..................24
Appearance care ........................199
Armrest ........................................ 48
Ashtrays ....................................... 88 Automatic anti-dazzle ..................41Automatic fuel cut-off ..................134
Automatic light control ...............109
Automatic locking ........................30
Autostop ............................. 133, 135
Auxiliary heater ........................... 122
B Battery ........................................ 170
Battery discharge protection ......115
Battery, jump starting.................. 196
Belts.............................................. 53
Bench seat.................................... 74
BlueInjection ............................... 140
Bonnet ....................................... 165
Bottle holders................................ 74
Brake and clutch fluid .................204
Brake assist ............................... 147
Brake fluid .................................. 169 Brakes ............................... 146, 169
Brake system ............................... 97
Breakdown.................................. 198
Bulb replacement ....................... 174
C
Capacities .................................. 219
Car Pass ...................................... 20
Catalytic converter .....................139
Central locking system ................24
Centre high-mounted brake light 176
Changing tyre and wheel size ...189
Charging system .......................... 97