Lighting143Rear courtesy lightsIlluminate in conjunction with the front
courtesy light.
Reading lights
Operated by pressing s and t in the
courtesy lights.
Sun visor lights
Illuminates when the cover is opened.
Lighting features
Centre console lighting Spotlight incorporated in the interior
lighting comes on when headlights
are switched on.
Entry lighting Welcome lighting
The following lights are switched on
for a short time by unlocking the
vehicle with the radio remote control:
● headlights
● tail lights
● number plate lights
● instrument panel light
● interior lights
Some functions are only operable
when it is dark outside to facilitate
locating the vehicle.
The lighting switches off immediately
when the ignition is switched on.
Starting off 3 16.
144LightingThis function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in Settings
I Vehicle in the Info Display.
Info Display 3 118.
Vehicle personalisation 3 122.
The settings can be saved for the key being used 3 23.
The following lights will additionally
switch on when the driver's door is
opened:
● illumination of some switches
● Driver Information Centre
● door pocket lights
Exit lighting The following lights switch on if the
key is removed from the ignition
switch:
● interior lights
● instrument panel light
They will switch off automatically after
a delay. This function works only in
the dark.Path lighting
Headlights, tail lights and number
plate lights illuminate the surrounding area for an adjustable time after
leaving the vehicle.
ActivatingHalogen headlights
1. Switch off the ignition.
2. Remove the ignition key.
3. Open the driver's door.
4. Pull the indicator lever.
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 indicator lever is
pulled while the driver's door is open.LED headlights
Path lighting is activated, when the
ignition is switched off and the driver's door is opened.
This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in Settings
I Vehicle in the Info Display.
Info Display 3 118.
Vehicle personalisation 3 122.
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.
Lighting145To prevent discharge of the vehicle
battery when driving, the following
systems are reduced automatically in
two stages and finally switched off:
● auxiliary heater
● heated rear window and mirrors
● heated steering wheel
● 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.
Switching 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.
156Driving and operatingDriving and
operatingDriving hints ............................... 157
Control of the vehicle ...............157
Steering ................................... 157
Starting and operating ...............157
New vehicle running-in ............157
Ignition switch positions ...........157
Power button ........................... 158
Retained power off ..................160
Starting the engine ..................160
Overrun cut-off ........................ 162
Stop-start system ....................162
Parking .................................... 165
Engine exhaust .......................... 166
Exhaust filter ............................ 166
Catalytic converter ...................167
AdBlue ..................................... 168
Automatic transmission ..............171
Transmission display ...............171
Gear selection ......................... 171
Manual mode ........................... 172
Electronic driving programmes 172
Fault ........................................ 173
Interruption of power supply ....173Manual transmission ..................174
Brakes ........................................ 174
Antilock brake system .............174
Parking brake .......................... 175
Brake assist ............................. 177
Hill start assist ......................... 177
Ride control systems .................177
Traction Control system ..........177
Electronic Stability Control ......178
Sport mode .............................. 180
Driver assistance systems .........180
Cruise control .......................... 180
Speed limiter ........................... 182
Adaptive cruise control ............184
Forward collision alert .............191
Following distance indication ...194
Active emergency braking .......194
Parking assist .......................... 198
Side blind spot alert .................205
Rear view camera ...................207
Traffic sign assistant ................209
Lane keep assist .....................213
Fuel ............................................ 215
Fuel for petrol engines .............215
Fuel for diesel engines ............217
Fuel for natural gas operation . 217
Refuelling ................................ 218Trailer hitch................................ 220
General information .................220
Driving characteristics and towing tips .............................. 221
Trailer towing ........................... 221
Towing equipment ...................222
Trailer stability assist ...............225
Driving and operating157Driving 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 3 162.
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.Use only floor mats, which fit properly and are fixed by the retainers on the
driver side.
Steering If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.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 3 166.
Autostop may be inhibited to allow for
charging of the vehicle battery.
Ignition switch positions
Turn key:
158Driving and operating0: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, diesel engine is preheating.
Control indicators illuminate and
most electrical functions are
operable. To turn the key from
position 2 to 1 or 0, first push the
key all the way in towards the steering column.3:engine start: Release key after
starting procedure begins
Steering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.
9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
Electronic key must be inside the
vehicle.
Accessory power mode
Press Engine Start/Stop once without
operating clutch or brake pedal. The yellow LED in the button illuminates.
Steering wheel lock is released and
some electrical functions are
operable, ignition is off.Ignition on power mode
Press and hold Engine Start/Stop for
6 seconds without operating clutch or brake pedal. The green LED in the
button illuminates, diesel engine is
Driving and operating159preheating. Control indicators
illuminate and most electrical
functions are operable.Engine start
Press Engine Start/Stop briefly while:
● manual transmission: operating clutch pedal,
● automatic transmission: operating brake pedal with
selector lever in P or N.
Starting the engine 3 160.Ignition off
Press Engine Start/Stop briefly when
Autostop is activated or when engine is running and vehicle is stationary.
Automatic transmission: apply the
parking brake and engage P.
Press Engine Start/Stop briefly
without operating clutch or brake pedal when in ignition on power
mode.
Some functions remain active until
driver's door is opened, provided the
ignition was on previously.Emergency shut off during driving
Press Engine Start/Stop for longer
than 2 seconds or press twice briefly
within 5 seconds 3 160.
Steering wheel lock The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
● The driver's door is opened.
To release steering wheel lock, open
and close driver's door and switch on accessory mode or start the engine
directly.9 Warning
If the vehicle battery is discharged,
the vehicle must not be towed,
tow-started or jump-started as the
steering wheel lock cannot be
disengaged.
Operation on vehicles with
electronic key system in case of
failure
If either the electronic key fails or the
battery of the electronic key is weak,
the Driver Information Centre may
display No Remote Detected or
Replace Battery in Remote Key when
you try to start the vehicle.
Place the electronic key solely
centred in the transmitter area in
longitudinal direction flat with buttons
upside as shown in the illustration.
Other objects, e.g. other keys,
transponder, tags, coins etc. must be removed from the centre console.
160Driving and operatingDepress the clutch pedal (manual
transmission) or the brake pedal
(automatic transmission) and press
Engine Start/Stop .
To switch off the engine, press
Engine Start/Stop again. Remove the
electronic key from the centre
console.
This option is intended for
emergencies only. Replace the
electronic key battery as soon as
possible 3 21.
For unlocking or locking the doors,
see fault in radio remote control unit
or electronic key system 3 23.
Retained power off The following electronic systems can
work until the driver's door is opened
or for ten minutes after the ignition is
switched off:
● power windows
● sunroof
● power outletsStarting the engine
Vehicles with ignition switch
Turn 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 accelerator pedal.
Diesel engines: turn the key to
position 2 for preheating and wait until
control indicator ! extinguishes.
Turn key briefly to position 3 and
release: an automatic procedure operates the starter with a short delay
until the engine is running, see
Automatic Starter Control.
Manual transmission: during an
Autostop, the engine can be started
by depressing the clutch pedal
3 162.
Automatic transmission: during an
Autostop, the engine can be started
by releasing the brake pedal 3 162.
Vehicles with power button
Manual transmission: operate clutch
and brake pedal.