Page 220 of 283

218Vehicle care● 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.
Changing into power saving mode
When power saving mode is
activated, a message appears in the
Driver Information Centre.
An active telephone call using the
hands-free option will be maintained
for around 10 minutes longer.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 minutes
Heating functionalities Notice
Individual heating functionalities,
such as heated seats or heated
steering wheel, may be temporarily
unavailable in the event of electrical
loading constraints. Functions will
be resumed after some minutes.Diesel 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.
Page 221 of 283

Vehicle care219Within one minute after switching off
ignition, operate the wiper lever to
position 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.
Attach the wiper blade slightly angled
to the wiper arm and push until it
engages.
Lower wiper arm carefully.Bulb replacement
Switch off the ignition and switch off
the relevant switch or close the doors.
Only hold a new bulb at the base. Do not touch the bulb glass with bare
hands.
Use only the same bulb type for
replacement.
Replace headlight bulbs from within
the engine compartment.
Bulb check
After a bulb replacement switch on
the ignition, operate and check the
lights.
Halogen headlights Halogen headlights with separate
bulbs for low beam and high beam.
Page 222 of 283
220Vehicle care
High beam (1) inner bulb.
Low beam ( 2) outer bulb.
High beam (1)
1. Remove the protective cover by pulling.
2. Press retaining clip downwardsand pull the bulb socket toward
the rear.
3. Detach the bulb from the bulb socket and replace the bulb.
4. Insert the bulb socket into the reflector housing.
5. Fit the protective cover on.
Low beam (2)
1. Remove the protective cover by pulling.
Page 223 of 283
Vehicle care221
2. Press retaining clip upwards andpull the bulb socket toward the
rear.
3. Detach the bulb from the bulb socket and replace the bulb.
4. Insert the bulb socket into the reflector housing.
5. Fit the protective cover on.
Front turn lights
In case of defective LEDs, have them
replaced by a workshop.
Side light
In case of defective LEDs, have them replaced by a workshop.
Daytime running light
In case of defective LEDs, have them
replaced by a workshop.
LED headlights
Headlights for low and high beam,
sidelights, daytime running lights and turn lights are designed as LEDs and
cannot be changed.
Have lights repaired by a workshop in
case of failure.
Front fog lights
Have bulbs replaced by a workshop.Tail lights
Tail lights, daytime running lights and
3rd-brake light are designed as LEDs.
In case of failure, have LEDs replaced by a workshop.
Light assembly in the body
1. Open the tailgate then unclip the access cover on the relevant side.
Page 224 of 283
222Vehicle care
2.Slacken the light fixing nut using a
box spanner or socket.
To avoid losing the nut if it drops
into the wing trim, first place a
cloth below it.
3. Manually unscrew and remove the light fixing nut.
4. Disengage the retaining clip, while pushing the light out slightly.5. From the outside, carefullywithdraw the light assembly from
recess and remove. Take care
that the cable duct remains in
position.
6. Turn the bulb socket anticlockwise and remove it from
the light assembly.7. Detach the bulb from the bulb socket and replace the bulb.
Brake light( 1)
Page 226 of 283
224Vehicle care7. Detach the bulb from the bulbsocket and replace the bulb:
Reverse light ( 1)
Rear fog light ( 2)
8. Insert the bulb socket into the light
assembly. Fit the light assembly in the recess and tighten the light
fixing nut from the inside. Attach
the cover.
3rd-brake light The 3rd-brake light is designed as
LED and can not be changed.
Have lights repaired by a workshop in
case of failure.
Bulb check
Switch on the ignition, operate and
check all lights.Side turn lights
To replace bulb, remove light
assembly:
1. Slide the light assembly forward and remove it at the back.
Page 227 of 283

Vehicle care225
2. Turn bulb socket clockwise andremove from light assembly.
3. Detach the bulb from the bulbsocket and replace the bulb.
4. Insert bulb socket and turnanticlockwise.
5. Insert left end of the light assembly, slide to the left and
insert right end.
Number plate light
Number plate lights are designed as LEDs and can not be changed.
Have lights repaired by a workshop in
case of failure.
Interior lights
Have the following bulbs replaced by
a workshop:
● courtesy light, reading lights
● load compartment light
● instrument panel illuminationElectrical system
Fuses Data on the replacement fuse mustmatch the data on the defective fuse.
There are two fuse boxes in the
vehicle:
● engine compartment
● instrument panel
Before replacing a fuse, turn off the
respective switch and the ignition.
A blown fuse can be recognised by its melted wire.Caution
Do not replace the fuse until the
cause of the fault has been
remedied.
Some functions are protected by
several fuses.
Fuses may also be inserted without
existence of a function.
Page 234 of 283

232Vehicle careinformation label and tyre pressure
chart are valid for cold tyres, which means at 20 °C.
The pressure increases by nearly
1.5 psi for a 10 °C temperature
increase. This must be considered
when warm tyres are checked.
Tyre deflation detectionsystem
The tyre deflation detection system
continually checks the rotation speed
of all four wheels and warns on low
tyre pressure condition once vehicle
is driving. This is achieved by
comparing tyre rolling circumference
with reference values and further
signals.
If a tyre loses pressure the control
indicator w illuminates and a warning
message is displayed in the Driver
Information Centre.
In this case reduce speed, avoid
sharp cornering and strong braking.
Stop at next safe opportunity and
check tyre pressure.
Control indicator w 3 98.After adjusting tyre pressure initialise
system to extinguish the control
indicator and restart system.Caution
Deflation detection system warns
just about low tyre pressure
condition and does not replace
regular tyre maintenance by the
driver.
In case of a system malfunction a
message is displayed in the Driver
Information Centre. Set correct tyre
pressure and reinitialise system. If the
failure continues to be displayed,
contact a workshop. The system is
inoperable when ABS or ESC has a
malfunction or a temporary spare
wheel is used. Once the road tyre has
been refitted, check the tyre pressure with cold tyres and initialise the
system.
System initialisation
After tyre pressure correction or
wheel change, the system must be
initialised to learn new circumference reference values:
1. Always ensure that all four tyres have correct tyre pressure3 266.
2. Apply parking brake. 3. Press w to reset deflation
detection system.
4. Reset is confirmed by pop-up indication.