92Instruments and controlsWhen the vehicle is parked and /
or the driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.
Battery voltage Uplevel display
When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.
Midlevel display
When the vehicle battery voltage is
running low, a warning code 174 will appear in the Driver Information
Centre.
1. Switch off immediately any electrical consumers which are
not required for a safe drive, e.g.
seat heating, heated windscreen
and heated rear window or other
main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.The warning message or warning
code will disappear after the engine
has been started twice consecutively
without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings
in the Info Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 23.
Depending on vehicle equipment and country-specific regulations, some of
the functions described below might
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings
Graphic Info Display
Press CONFIG for the Settings menu.
Turn the MENU-TUNE control to
move to the desired setup menu, and then press MENU-TUNE .
100LightingLightingExterior lighting.......................... 100
Light switch .............................. 100
Automatic light control .............101
High beam ............................... 102
Headlight flash ......................... 102
Headlight range adjustment ....102
Headlights when driving abroad .................................... 102
Daytime running lights .............103
Xenon lighting system .............103
Hazard warning flashers ..........104
Turn lights ................................ 104
Front fog lights ......................... 104
Rear fog light ........................... 105
Parking lights ........................... 105
Reversing lights .......................105
Misted light covers ...................105
Interior lighting ........................... 106
Instrument panel illumination control ..................................... 106
Interior lights ............................ 106
Reading lights .......................... 107
Lighting features ........................107
Entry lighting ............................ 107Exit lighting.............................. 108
Battery discharge protection ....108Exterior lighting
Light switch
Turn light switch:
7:lights off8:sidelights9:headlights
Control indicator 8 3 82.
108LightingThe following lights will additionally
switch on when the driver's door is
opened:
● illumination of all switches
● Driver Information Centre
Exit lighting
The following lights switch on if the
key is removed from the ignition
switch:
● interior lights
● instrument panel light (only when
it is dark)
They will switch off automatically after
a delay and will be activated again if
the driver's door is opened.
Path lighting Headlights, tail lights and number
plate lights illuminate the surrounding area for an adjustable time after
leaving the vehicle.Activating
1. Switch off the ignition.
2. Remove the ignition key.
3. Open driver's door.
4. Pull the stalk.
5. Close the driver's door.
If the driver's door is not closed the
lights switch off after 2 minutes.
Exit lighting is switched off
immediately if the stalk is pulled while
the driver's door is open.
Activation, deactivation and duration
of this function can be changed in the Info Display.
Vehicle personalisation 3 92.
The settings can be saved for the key
being used 3 23.
Battery discharge protection Vehicle battery state of charge
function
The function guarantees longest
vehicle battery life via a generator with controllable power output and
optimised power distribution.
To prevent discharge of the vehicle
battery when driving, the following
systems are reduced automatically in two stages and finally switched off:
● heated rear window
● heated windscreen
● heated mirrors
● heated seats
● fan
In the second stage, a message
which confirms the activation of the
vehicle battery discharge protection
will be displayed in the Driver
Information Centre.
Lighting109Switching off electric lights
To prevent discharge of the vehicle
battery when the ignition is switched
off, some interior lights are switched
off automatically after some time.
Driving and operating119Driving and
operatingDriving hints ............................... 119
Control of the vehicle ...............119
Starting and operating ...............120
New vehicle running-in ............120
Ignition switch positions ...........120
Retained power off ..................121
Starting the engine ..................121
Overrun cut-off ........................ 122
Stop-start system ....................122
Parking .................................... 124
Engine exhaust .......................... 125
Exhaust filter ............................ 125
Catalytic converter ...................126
Automatic transmission ..............127
Transmission display ...............127
Selector lever .......................... 127
Manual mode ........................... 128
Electronic driving programmes 128
Fault ........................................ 129
Interruption of power supply ....129
Manual transmission ..................130
Brakes ........................................ 131
Antilock brake system .............131Parking brake .......................... 132
Brake assist ............................. 132
Hill start assist ......................... 132
Ride control systems .................133
Traction Control system ..........133
Electronic Stability Control ......133
City mode ................................ 134
Driver assistance systems .........135
Cruise control .......................... 135
Speed limiter ........................... 137
Forward collision alert .............138
Following distance indication ...140
Parking assist .......................... 141
Rear view camera ...................145
Traffic sign assistant ................146
Lane departure warning ..........149
Fuel ............................................ 150
Fuel for petrol engines .............150
Fuel for liquid gas operation ....152
Refuelling ................................ 152Driving hints
Control of the vehicle
Never coast with engine not
running
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.
Stop-start system 3 122.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must be increased. This will be achieved by an idle boost which may be audible.
A message appears in the Driver
Information Centre.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in
the area of the pedals.
120Driving and operatingUse only floor mats, which fit properly
and are fixed by the retainers on the
driver side.
Driving downhill
Engage a gear when driving downhill to ensure that sufficient brake
pressure is available.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.
Additionally, the cleaning process of
the exhaust filter may take place more
often.
Exhaust filter 3 125.
Autostop may be inhibited to allow for charging of the vehicle battery.
Ignition switch positions Turn key:0:ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was on previously1:accessory power mode: Steering
wheel lock released, some
electrical functions are operable,
ignition is off2:ignition on power mode: Ignition
is on. Control indicators
illuminate and most electrical
functions are operable3:engine start: Release key after
starting procedure begins
Driving and operating121Steering wheel lockRemove key from ignition switch and
turn steering wheel until it engages.
Retained power off The following electronic systems are
operable until the driver's door is
opened or at the latest for
10 minutes after the ignition is
switched off:
● power windows
● power outlets
Starting the engineTurn key to position 1 to release the
steering wheel lock.
Manual transmission: operate clutch
and brake pedal.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Do not operate the accelerator pedal. Turn key briefly to position 3 and
release: an automatic procedure operates the starter after a brief
delay, until the engine is running. See
'Automatic Starter Control'.
Before restarting or to switch off the
engine, turn the key back to position
0 .
During an Autostop, the engine can
be started by depressing the clutch
pedal.
Starting the vehicle at low
temperatures
Petrol engines
The start of the engine without
additional heaters is possible down to -30 °C.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. 5 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.
Once applied, the system will go on starting automatically until the engine
is running. Because of the checking
procedure, the engine starts running
after a short delay.
Possible reasons for a non-starting
engine:
● clutch pedal not operated (manual transmission)
● brake pedal not operated or selector lever not in P or N
(automatic transmission)
● timeout occurred
Driving and operating123Conditions 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.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the exhaust filter is not active.
● The vehicle was driven at least at
walking speed 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 further
information 3 110.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 120.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features, e.g. the rear window
heating, are disabled or switched into
a power saving mode. The fan speed of the climate control system is
reduced to save power.
Restart of the engine by the driverVehicles with manual transmission
Depress the clutch pedal to restart the
engine.When the engine is restarted, control
indicator D in the Driver Information
Centre extinguishes.
If the selector lever is shifted out of
neutral before depressing the clutch
pedal first, control indicator -
illuminates or is shown as a symbol in
the Driver Information Centre.
Control indicator - 3 79.
Restart of the engine by the stop- start system
The selector lever must be in neutral to enable an automatic restart.
If one of the following conditions occurs during an Autostop, the
engine will be restarted automatically
by the stop-start system:
● The stop-start system is manually deactivated.
● The bonnet is opened.
● The driver's seat belt is unfastened and the driver's door
is opened.
● The engine temperature is too low.