130Driving and operatingDriving and
operatingDriving hints ............................... 130
Driving economically ...............130
Control of the vehicle ...............131
Steering ................................... 131
Starting and operating ...............132
New vehicle running-in ............132
Ignition switch positions ...........132
Power button ........................... 132
Starting the engine ..................134
Idle speed control ....................135
Vehicle shutdown ....................135
Overrun cut-off ........................ 136
Stop-start system ....................136
Parking .................................... 139
Engine exhaust .......................... 140
Diesel particle filter ..................140
Catalytic converter ...................140
AdBlue ..................................... 141
Manual transmission ..................146
Brakes ........................................ 147
Antilock brake system .............147
Parking brake .......................... 148Brake assist............................. 148
Hill start assist ......................... 148
Ride control systems .................149
Traction Control system ..........149
Electronic stability program .....150
Driver assistance systems .........152
Cruise control .......................... 152
Speed limiter ........................... 155
Parking assist .......................... 155
Rear view camera ...................157
Fuel ............................................ 159
Fuel for diesel engines ............159
Refuelling ................................ 160
Fuel consumption - CO 2-
Emissions ............................... 161
Trailer hitch ................................ 162
General information .................162
Driving characteristics and towing tips .............................. 162
Trailer towing ........................... 162
Trailer stability assist ...............163Driving 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.
140Driving and operatingEngine exhaust9Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Diesel particle filter
The diesel particle filter system filters
harmful soot particles out of the
exhaust gases. The system includes
a self-cleaning function that runs
automatically during driving without
any notification.
The filter is cleaned by periodically
burning off the soot particles at high
temperature. This process takes
place automatically under set driving
conditions. Autostop is not available
and fuel consumption may be higher
during this period. The emission of
smells and smoke during this process is normal.
Under certain driving conditions, e.g.
short distances, the system cannot
clean itself automatically.
If cleaning of the filter is required and
if previous driving conditions did not
enable automatic cleaning, it will be
indicated by the illumination of control
indicators F 3 98 and Z 3 98 in the
instrument cluster. Seek the
assistance of a workshop
immediately.Caution
If the cleaning process is
interrupted, there is a risk of
provoking severe engine damage.
Cleaning takes place quickest at high engine speeds and loads.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.Caution
Fuel grades other than those listed on page 3 159, 3 210 could
damage the catalytic converter or
electronic components.
Unburnt fuel will overheat and
damage the catalytic converter.
Therefore avoid excessive use of the starter, running the fuel tank
dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven
engine running, a reduction in engine performance or other unusual
problems, have the cause of the fault
rectified by a workshop as soon as
possible. In an emergency, driving
can be continued for a short period,
keeping vehicle speed and engine
speed low.
162Driving and operatingThe figures are provided only for the
purpose of comparison between different vehicle variants and mustnot be taken as a guarantee for the
actual fuel consumption of a
particular vehicle.
Additional equipment may result in
slightly higher results than the stated
fuel consumption and CO 2 figures.
Furthermore, fuel consumption is dependent on personal driving style
as well as road and traffic conditions.Trailer hitch
General information
Entrust retrofitting of towing
equipment to a workshop. It may be
necessary to make changes that
affect the cooling system, heat
shields or other equipment. Only use
towing equipment that has been
approved for your vehicle.
Driving characteristics and towing tips
In the case of trailers with brakes,
attach the breakaway stopping cable.
Before attaching a trailer, lubricate
the coupling ball. However, do not do so if a stabiliser, which acts on thecoupling ball, is being used to reduce
snaking movements. For trailers with
low driving stability the use of a
stabiliser is recommended.
A maximum speed of 80 km/h must
not be exceeded, even in countries
where higher speeds are permitted.If the trailer starts snaking, drive more slowly, do not attempt to correct the
steering and brake sharply if
necessary.
When driving downhill, drive in the
same gear as if driving uphill and
drive at a similar speed.
Adjust tyre pressure to the value
specified for full load 3 220.
Trailer towing
Trailer loads The permissible trailer loads are
vehicle and engine-dependent
maximum values which must not be
exceeded. The actual trailer load is the difference between the actual
gross weight of the trailer and the
actual coupling socket load with the
trailer coupled.
The permissible trailer loads are
specified in the vehicle documents. In
general, they are valid for gradients
up to max. 12%.
The permitted trailer load applies up
to the specified incline and up to an
altitude of 1000 metres above sea
Driving and operating163level. Since engine power decreases
as altitude increases due to the air
becoming thinner, therefore reducing
climbing ability, the permissible gross
train weight also decreases by 10%
for every 1000 metres of additional
altitude. The gross train weight does
not have to be reduced when driving
on roads with slight inclines (less than
8%, e.g. motorways).
The permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 208.
Vertical coupling load
The vertical coupling load is the load
exerted by the trailer on the coupling
ball. It can be varied by changing the
weight distribution when loading the
trailer.
The maximum permissible vertical
coupling load is specified on the
towing equipment identification plate
and in the vehicle documents. Always aim for the maximum load, especially
in the case of heavy trailers. The
vertical coupling load should never
fall below 25 kg.In the case of trailer loads of
1200 kg or more, the vertical coupling load should not be less than 50 kg.
Rear axle load
When the trailer is coupled and the
towing vehicle fully loaded (including
all occupants), the permissible rear
axle load (see identification plate or
vehicle documents) must not be
exceeded.
Trailer stability assist
If the system detects snaking
movements, engine power is reduced
and the vehicle/trailer combination is selectively braked until the snaking
ceases. While the system is working, keep steering wheel as still as
possible.
Trailer stability assist (TSA) is a
function of the Electronic Stability
Program (ESP® Plus
) 3 150.
164Vehicle careVehicle careGeneral Information...................165
Accessories and vehicle modifications .......................... 165
Vehicle storage ........................165
End-of-life vehicle recovery .....166
Vehicle checks ........................... 166
Performing work ......................166
Bonnet ..................................... 166
Engine oil ................................. 167
Engine air filter ........................ 168
Engine coolant ......................... 169
Power steering fluid .................169
Washer fluid ............................ 170
Brakes ..................................... 170
Brake fluid ............................... 170
Vehicle battery ......................... 171
Diesel fuel filter ........................173
Diesel fuel system bleeding .....173
Wiper blade replacement ........174
Bulb replacement .......................175
Headlights ............................... 175
Fog lights ................................. 176
Front turn signal lights .............176
Tail lights ................................. 176
Side turn signal lights ..............177Centre high-mounted brake
light ......................................... 177
Reversing light ......................... 178
Number plate light ...................179
Fog tail light ............................. 179
Interior lights ............................ 180
Instrument panel illumination ...180
Electrical system ........................181
Fuses ....................................... 181
Instrument panel fuse box .......182
Vehicle tools .............................. 185
Tools ........................................ 185
Wheels and tyres .......................186
Tyres ....................................... 186
Winter tyres ............................. 186
Tyre designations ....................186
Tyre pressure .......................... 186
Tyre pressure monitoring system .................................... 188
Tread depth ............................. 190
Changing tyre and wheel size . 190
Wheel covers ........................... 190
Tyre chains .............................. 191
Tyre repair kit .......................... 191
Wheel changing .......................194
Spare wheel ............................ 195
Jump starting ............................. 197Towing....................................... 198
Towing the vehicle ...................198
Towing another vehicle ...........199
Appearance care .......................200
Exterior care ............................ 200
Interior care ............................. 202
Vehicle care185No.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 48 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 3 194.
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 3 191.
188Vehicle careTrailer towing
When 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 100 km/h.
Trailer towing 3 162.
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.
Note
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 3 100 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 F 3 98 and a corresponding
message appears in the Driver
Information Centre.
198Vehicle care
Lead connection order:1. Connect the red lead to the positive terminal (1) of the booster
battery.
2. Connect the other end of the red lead to the positive terminal (2) of
the discharged vehicle battery.
3. Connect the black lead to the negative terminal (3) of the
booster battery.
4. Connect the other end of the black
lead to a vehicle grounding point
(4), such as the engine block or an
engine mounting bolt. Connect as
far away from the discharged
vehicle battery as possible,
however at least 60 cm.
Route the leads so that they cannot
catch on rotating parts in the engine
compartment.
To start the engine: 1. Start the engine of the vehicle providing the jump start.
2. After five minutes, start the other engine. Start attempts should be
made for no longer than
15 seconds at an interval of
one minute.
3. Allow both engines to idle for approx. three minutes with the
leads connected.
4. Switch on electrical consumers (e.g. headlights, heated rear
window) of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.Towing
Towing the vehicle The towing eye is stowed with thevehicle tools 3 185.
Release cap using a suitable tool.
Screw the towing eye clockwise into
the front towing point and tighten fully
using the wheel wrench.
Attach a tow rope - or better still a tow rod - to the towing eye, never to the
bumper or front suspension units.