Page 104 of 245

102LightingAutomatic light control
When the automatic light control
function is switched on and the
engine is running, the system
switches between daytime running
lights and headlights automatically
depending on the external lighting
conditions and information given by
the wiper system.
Make sure the sensor is not blocked
3 10, 3 35.
Daytime running light 3 104.
Automatic headlight activation During poor lighting conditions
headlights are switched on.
Additionally, headlights are switched
on if the windscreen wipers have
been activated for several wipes.
LED headlights 3 104.
Tunnel detection
When a tunnel is entered headlights
are switched on immediately.
High beam
Push to switch from low to high beam.Pull to deactivate high beam.
High beam assist 3 102.
High beam assist
The camera in the windscreen
detects the lights of oncoming or
preceding vehicles. Once activated,
high beam assist remains active and
switches high beam on and off
depending on surrounding
conditions. The latest setting of the
high beam assist will remain after the ignition is switched on again.
This feature automatically activates
the high beam in the dark when
vehicle speed is faster than 15 mph.
It switches automatically back to low
beam when:
● The camera in the windscreen detects the lights of oncoming or
preceding vehicles.
● The vehicle speed drops below 9 mph.
● It is foggy or snowy.
● Front or rear fog lights are switched on.
● Driving in urban areas.
If there are no restrictions detected,
the system switches back to high
beam.
Page 183 of 245

Vehicle care181● See the Owner's Manual forfurther information.
● Explosive gas may be present in the vicinity of the vehicle battery.
Power saving mode
This mode deactivates electrical
consumers to avoid excessive
discharging of the vehicle battery.
These consumers, such as the
infotainment system, windscreen
wipers, low beam headlights,
courtesy light, etc. can be used for a
total maximum time of about
40 minutes after ignition is switched
off.
Deactivating power saving mode
Power saving mode is deactivated
automatically when the engine is
restarted. Run the engine for a
sufficient charge:
● for less than 10 minutes to use the consumers for approx.
5 minutes
● for more than 10 minutes to use the consumers for up to approx.
30 minutesDiesel fuel system bleeding
If the tank has been run dry, the diesel fuel system must be bled. Switch on
the ignition three times for
15 seconds at a time. Then crank the
engine for a maximum of
40 seconds. Repeat this process after
no less than 5 seconds. If the engine fails to start, seek the assistance of a
workshop.
Wiper blade replacement
Windscreen
Switch off ignition.
Within one minute after switching off
ignition, operate the wiper lever to
positon the wiper blades vertically on
the windscreen.
Lift the wiper arm until it stays in the
raised position, press button to
disengage the wiper blade and
remove.
Attach the wiper blade slightly angled
to the wiper arm and push until it
engages.
Lower wiper arm carefully.
Rear window
Lift wiper arm. Disengage wiper blade as shown in illustration and remove.
Page 214 of 245

212Vehicle careand rear window wiper must be
switched off. Remove antenna and
external accessories such as roof
racks etc.
If the vehicle is washed by hand,
make sure that the insides of the
wheel housings are also thoroughly
rinsed out.
Wax painted parts of the vehicle
regularly.
Clean edges and folds on opened
doors and the bonnet as well as the
areas they cover.
Clean bright metal mouldings with a
cleaning solution approved for
aluminium to avoid damages.Caution
Always use a cleaning agent with
a pH value of four to nine.
Do not use cleaning agents on hot surfaces.
Do not clean the engine compartmentwith a steam-jet or high-pressure jet
cleaner.
Thoroughly rinse and leather-off the vehicle. Rinse leather frequently. Use
separate leathers for painted and
glass surfaces: remnants of wax on
the windows will impair vision.
Have the door hinges of all doors
greased by a workshop.
Do not use hard objects to remove
spots of tar. Use tar removal spray on
painted surfaces.
Exterior lights
Headlight and other light covers are
made of plastic. Do not use any
abrasive or caustic agents, do not use an ice scraper, and do not clean them
dry.
Polishing and waxing
Wax the vehicle regularly (at the
latest when water no longer beads).
Otherwise, the paintwork will dry out.
Polishing is necessary only if the paint
has become dull or if solid deposits
have become attached to it.
Paintwork polish with silicone forms a
protective film, making waxing
unnecessary.Plastic body parts must not be treated with wax or polishing agents.
Windows and windscreen wiper
blades
Switch off wipers before handling in
their areas.
Use a soft lint-free cloth or chamois leather together with window cleaner
and insect remover.
When cleaning the rear window from
inside, always wipe in parallel to the
heating element to prevent damage.
For mechanical removal of ice, use a
sharp-edged ice scraper. Press the
scraper firmly against the glass so
that no dirt can get under it and
scratch the glass.
Clean smearing wiper blades with a
soft cloth and window cleaner. Also
make sure to remove any residues
such as wax, insect residues and
similar from the window.
Ice residues, pollution and continuous wiping on dry windows will damage or
even destroy the wiper blades.