Instruments and controls101Trip computerTrip computer in Board-
Info-Display
The trip computer provides
information on driving data, which is
continually recorded and evaluated
electronically. Access trip computer
vehicle data by pressing the BC
button on the Infotainment system or
the left adjuster wheel on the steering wheel.
Some of the functions appear on the
display in an abbreviated form. Once
a function has been selected, the
subsequent rows of the trip computer
function are displayed.
The functions are displayed in the
following order:
■ Instantaneous consumption
■ Average consumption
■ Effective consumption
■ Average speed
■ Distance travelled■ Range
■ Stop watch
Board-Info-Display 3 92.
Instantaneous consumption
Display of the instantaneous
consumption.
Display changes depending on
speed:
Display in l/h=below 13 km/hDisplay in
l/100 km=above 13 km/hAverage consumption
Display of average consumption. The measurement can be reset at any
time.
Effective consumption
Display of the amount of fuel
consumed. The measurement can be reset at any time.
Average speed Display of average speed. The
measurement can be reset at any
time.
Stoppages in the journey with the
ignition off are not included in the
calculations.
Distance travelled
Display of distance travelled. The
measurement can be reset at any
time.
Range
Range is calculated from current fuel
tank content and instantaneous
consumption. The display shows
average values.
102Instruments and controls
After refuelling, the range is updated
automatically after a brief delay.
If the fuel in the tank allows less than
50 km of travel, the warning Range
appears on the display.
If the fuel in the tank allows less than
30 km of travel, the warning Refuel!
appears on the display.
Acknowledge the menu item 3 92.
Resetting trip computer
information Select the desired trip computer
information and reset by pressing the
left adjuster wheel on the steering
wheel or the OK button on the
Infotainment system.Stop watch
Using the arrow buttons:
To start, press left arrow button to
select menu item Start and press OK
button to start/stop. To reset, press left arrow button to select menu item
Reset and press OK button.
Using the left adjuster wheel on the
steering wheel:
To start, select menu item Start and
press to start/stop. To reset, select
menu item Reset and press to confirm
command.
Interruption of power supply
If the power supply has been
interrupted or if the battery voltage
has dropped too low, the values
stored in the trip computer will be lost.
Trip computer in Graphic-
Info-Display or Colour-
Info-Display
The trip computers provide
information on driving data, which is
continually recorded and evaluated electronically. The trip computer main
Instruments and controls103
page provides information on range,
average consumption and
instantaneous consumption.
To display other trip computer data, press the BC button on the
Infotainment system and select the
trip computer menu in the display.
The information of the two trip
computers can be reset separately,
making it possible to display different
trip distances.
Graphic-Info-Display,
Colour-Info-Display 3 94.
RangeRange is calculated from current fuel
tank content and instantaneous
consumption. The display shows average values.
After refuelling, the range is updated
automatically after a brief delay.
If the fuel in the tank allows less than
50 km of travel, the warning Range
appears on the display.
If the fuel in the tank allows less than
30 km of travel, the warning Refuel!
appears on the display.
Acknowledge the menu item 3 94.
Instantaneous consumption
Display of the instantaneous
consumption.
Display changes depending on
speed:Display in l/h=below 13 km/hDisplay in
l/100 km=above 13 km/h
Distance travelled
Display of distance travelled. The
measurement can be reset at any
time.
Average speed
Display of average speed. The
measurement can be reset at any
time.
Stoppages in the journey with the
ignition off are not included in the
calculations.
Effective consumption Display of the amount of fuel
consumed. The measurement can be
reset at any time.
116Climate control
Demisting and defrosting■ Set the air distribution switch to l
or J
■ Set temperature control to warmest
level
■ Set fan to highest level
■ Close centre air vents
■ Open side air vents and direct them
towards the door windows
Heated rear window Ü 3 31.
Air conditioning system In addition to the heating and
ventilation system, the air
conditioning system has controls for:n=cooling4=air recirculationÜ=demisting and defrosting
Heated seats ß 3 39.
Cooling n
Press button
n to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.
Press button n again to switch off
cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
freezing point. Therefore
condensation may form and drip from under the vehicle.
If no cooling or drying is required,
switch the cooling system off to save
fuel. Activated cooling might inhibit
autostops.
Air recirculation system 4
Press button 4 to activate air
recirculation mode. Activation is
indicated by the LED in the button.
Press button 4 again to deactivate
recirculation mode.9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen might mist
up from outside, when cold air is
Driving and operating123Driving and operatingDriving hints............................... 123
Starting and operating ...............123
Engine exhaust .......................... 128
Automatic transmission .............. 129
Manual transmission ..................133
Drive systems ............................ 134
Brakes ........................................ 136
Ride control systems .................138
Driver assistance systems .........141
Fuel ............................................ 144
Trailer hitch ................................ 147Driving hints
Control of the vehicleNever coast with engine not
running (except during Autostop)
Many systems will not function in this
situation ( e.g. brake servo unit, power
steering). Driving in this manner is a
danger to yourself and others. All
systems function during an Autostop,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 125.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Power steering Never leave the steering wheel on full
lock when the vehicle is stationary as this may damage the power steering
pump.
Control indicator 2 3 87.Starting and operating
New vehicle running-in
Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period fuel and
engine oil consumption may be
higher and the cleaning process of the diesel particle filter may take
place more often. Autostop may be inhibited to allow for charging of the
battery.
Diesel particle filter 3 128.
Driving and operating125
30 seconds. If engine does not start,
wait 10 seconds before repeating starting procedure.
Ensure the engine oil is of the correct
viscosity, the correct fuel is used,
vehicle services are performed
regularly and the battery is sufficiently charged.
Overrun cut-off The fuel supply is automatically cut-
off during overrun, i.e. when the
vehicle is driven with a gear engaged but accelerator is released.Stop-start system
The stop-start system helps to save
fuel and to reduce the exhaust
emissions. When conditions allow, it
switches off the engine as soon as the
vehicle is at a low speed or at a
standstill, e.g. at a traffic light or in a
traffic jam. It starts the engine
automatically as soon as the clutch is
depressed. A vehicle battery sensor
ensures that an Autostop is only
performed if the vehicle battery is
sufficiently charged for a restart.
Activation
The stop-start system is available as
soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.Deactivation
Deactivate the stop-start system
manually by pressing the eco button.
The deactivation is indicated when
the LED in the button extinguishes.
Autostop
If the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
■ Depress the clutch pedal
■ set the lever to neutral
■ release the clutch pedal
The engine will be switched off while
the ignition stays on.
128Driving 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.
Malfunction indicator light 3 85.
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 and may take more than
15 minutes. 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 previous driving conditions did not
enable automatic cleaning, it will be
indicated by control indicator %
3 88.
% illuminates, accompanied by a
warning chime, when diesel particle
filter is full. Start cleaning process as
soon as possible.
% flashes when diesel particle filter
has reached the maximum filling level. Start cleaning process
immediately to avoid damage to the
engine. A warning chime sounds every 3 minutes until the cleaning
process is complete.
Cleaning process
To activate the cleaning process,
continue driving, keeping engine
speed above 2000 revolutions per
minute. Shift down if necessary.
Diesel particle filter cleaning is then
started.
If control indicator Z illuminates
additionally in the instrument cluster
when the engine is running, there
Driving and operating129
may be a fault in the diesel particle
filter 3 85. Cleaning is not possible,
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.
Do not switch off the engine until the
cleaning process is complete. This is
indicated by the extinguished control
indicator %.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.
Caution
Fuel grades other than those listed on pages 3 144, 3 202 could
damage the catalytic converter or
electronic components.
Unburnt petrol 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.
Malfunction indicator light 3 85.
Automatic transmission
The automatic transmission permits
automatic gearshifting (automatic
mode) or manual gearshifting
(manual mode).
Transmission display
The mode or selected gear is shown
in the transmission display.
P=park positionR=reverse gearN=neutral