Page 97 of 217
Instruments and controls95
Turn■ To mark a menu option
■ To set a numeric value or to display
a menu option
Press ■ To select or activate the marked option
■ To confirm a set value
■ To switch a system function on/off
To exit a menu, turn the multifunction knob left or right to Return or Main and
select.Select using the left adjuster
wheel on the steering wheel
Turn the adjuster wheel to call up the required function.
Press the adjuster wheel to select
marked items and confirm
commands. Press to operate the stop
watch or restart measurement and
calculation.
Trip computer 3 101.
Function areas
For each function area there is a main
page (Main), which is selected at the
top edge of the display:
■ Audio,
■ Navigation,
■ Telephone,
■ Trip computer.
See Infotainment system instruction
manual for further information.
Page 102 of 217

100Instruments and controlsTrip 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 91.
Instantaneous consumption
Display of the instantaneous
consumption.
Display changes depending on
speed:
Display in gal/h=below 8 mphDisplay in miles/gal=above 8 mphAverage 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.
Page 103 of 217

Instruments and controls101
After refuelling, the range is updated
automatically after a brief delay.
If the fuel in the tank allows less than
30 miles of travel, the warning
Range appears on the display.
If the fuel in the tank allows less than
20 miles of travel, the warning
Refuel! appears on the display.
Acknowledge the menu item 3 91.
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
Page 105 of 217

Instruments and controls103
Average consumptionDisplay of average consumption. The
measurement can be reset at any
time.
Resetting trip computer
information
Select BC 1 or BC 2 from the trip
computer menu.
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.
To reset all information of a trip
computer, select menu item All
values . After resetting, "- - -" is
displayed for the trip computer
information selected. The
recalculated values are displayed
after a brief delay.
Stop watch
Select menu item Timer from the
Board Computer menu. The Timer
menu is displayed.
To start, select menu item Start. To
reset, select menu item Reset.
The desired stop watch display can
be selected from the Options menu:
Driving Time excl. Stops : The time the
vehicle is in motion is recorded.
Stationary time is not included.
Driving Time incl. Stops : The time the
vehicle is in motion is recorded. The
time the vehicle is stationary with the
key in the ignition switch is included.
Page 110 of 217

108LightingTurn and lane-change
signalslever up=right turn signallever down=left turn signal
If the lever is moved past the
resistance point, the turn signal is
switched on constantly.
When the steering wheel is turned
back, the turn signal is automatically
deactivated. This will not happen
when making a minor steering
manoeuvre such as lane changing.
For three flashes, e.g. when changing
lanes, press the lever until resistance is felt and then release. Move the
lever to the resistance point and hold
for longer indication.
The volume of the turn signal audible
warning is dependent upon vehicle
speed.
Switch the turn signal off manually by moving the lever to its original
position.
Control indicators O 3 83.
Front fog lightsOperated with the > button. Control
indicator > illuminates in the
instrument cluster when the front fog
lights are switched on.
The front fog lights can only be
switched on when both the ignition
and low beam/high beam or sidelights are on.
Light switch in position AUTO:
switching on front fog lights will switch
on low beam and sidelights
automatically.
Follow the regulations of the country
in which you are driving when using
front fog lights.
Page 124 of 217

122Driving and operatingDriving and operatingDriving hints............................... 122
Starting and operating ...............122
Engine exhaust .......................... 127
Automatic transmission .............. 128
Manual transmission ..................132
Drive systems ............................ 133
Brakes ........................................ 135
Ride control systems .................137
Driver assistance systems .........140
Fuel ............................................ 143
Trailer hitch ................................ 146Driving 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 3 124.
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 86.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 3 127.
Page 125 of 217

Driving and operating123Ignition switch positionsLOCK=Ignition offACC=Steering wheel lock
released, ignition offON=Ignition on, for diesel
engine: preheatingSTART=StartingStarting the engine
Manual transmission: operate clutch
and brake pedals.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Do not operate accelerator pedal.
Diesel engines: turn the key to
position ON for preheating until
control indicator ! extinguishes
3 87.
Turn key briefly to position START
and release. Key returns
automatically to position ON.
Before restarting or to switch off the
engine, turn key back to LOCK.
Start attempts should not last longer
than 15 seconds. If engine does not
start, wait 10 seconds before
repeating starting procedure.
The increased engine speed
automatically returns to normal idling
speed as the engine temperature
rises. Drive at a moderate speed,
especially in cold weather, until
normal engine operating
temperatures have been reached.
During an Autostop, the engine can
be started by depressing the clutch
pedal.
Stop-start system 3 124.
Starting the vehicle at low
temperatures In extremely cold temperatures, i.e.
below -20 °С, it may be necessary to
crank the engine for up to
30 seconds for it to start.
Turn key to position START and hold
until engine starts. Start attempts
should not last longer than
Page 127 of 217

Driving and operating125
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
During an Autostop, the heating, power steering and brake
performance will be maintained.
Air conditioning system may or may
not inhibit the stop-start system
according to the cooling performance.
Caution
The steering assist can be
reduced during an Autostop.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled.
■ The stop-start system is not manually deactivated
■ the bonnet is fully closed
■ the driver's door is closed or the driver'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 or low
■ the engine exhaust temperature is not too high, e.g. after driving with
high engine load
■ the ambient temperature is not too low
■ the defrosting function is not activated
■ the climate control system does not
inhibit an engine stop
■ the brake vacuum is sufficient■ the self-cleaning function of the diesel particle filter is not active
■ the vehicle has moved 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 3 116.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 122.
Vehicle battery discharge protection
To ensure reliable engine restarts, several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Restart of the engine by the
driver
Depress the clutch pedal to restart the
engine.
The engine start is indicated by the
needle at the idle speed position in
the tachometer.