Operation
The supplementary heating system switches
off again aut omatically aft
er a while.Note
Air conditioning
and colourless toxic gas. Carbon monoxide
can cause peopl
e t
o lose consciousness. It
can also cause death. Radio-operated remote control
Fig. 152
Auxiliary heating: radio-operated re-
mot e contr
ol. Switch on: Pr
ess the butt
on for about
one second
Switch off: Press the button for about
one second
If the buttons of the remote control are press-
ed unnecessarily, it could switch on the auxili-
ary heater involuntarily, even when it is out of
range or when the control lamp is flashing.
Remote control LED
When the buttons ar
e pressed, the LED of re-
mote control ››› Fig. 152
2 gives the user a
r ange of inf
ormation:
It lights up for approx. 2 seconds
Infotainment system
v Touch oper
ation via the device screen, ro-
tary push-button, menu button and buttons
on the multifunction steering wheel.
Central computer with control and display
unit (9,2”) 1)
The factory-mounted central computer in the
vehicle includes country-specific compo-
nents and software for connectivity and for
the execution of vehicle, comfort and infotain-
ment functions.
The corresponding indications are shown on
the control and display unit screen and partly
on the instrument panel.
v Capacitive colour screen:
v Using the equipment with:
v Touch zones Touch operation.
v Buttons on the multifunction steering
wheel.
v Approach sensors (driver and passenger
side recognition, gesture control).
Vehicle and comfort functions v Driver assistance system settings.
v Heating and air conditioning settings.
v Lights and visibility function settings.
v Vehicle comfort settings.
v Parking and manoeuvring settings. Sound system Basic equipment:
The inf
ot
ainment system that is supplied from
the factory is equipped as follows:
v Speakers in different locations and with dif-
ferent power levels (watts).
v Internal amplifier depending on the system:
v 8 speakers: 5 x 20 W
v Setting options:
v Equaliser, depending on the system:
v 8 speakers: 5 frequency bands or pre-
defined settings.
v Sound distribution, depending on the sys-
tem:
v8 speakers: Balance + Fader (left /
right / front / rear).
v Sound optimisation by zones (valid for 8
speaker system):
v Manual (Driver and All)
v Automatic depending on the seats oc-
cupied.
Optional sound system
The infotainment system can be extended
with an optional sound system as follows: v 10 speakers in different locations and with
different power levels (watts). v
Ext ernal amplifier (340 W Ethernet), which
pr
ocesses the audio signals sent by the
central computer.
v Excitation of speaker channels through
class AB final stages.
v Audio signal processing in digital internal
signal processor (DSP).
v Independent subwoofer in the luggage
compartment.
v Setting options:
v User equaliser: 5 bands.
v Sound distribution: Balance + Fader (left /
right / front / rear).
v Sound optimisation by zones:
vManual (Driver, Front and All)
v Subwoofer volume.
Connectivity Wi-Fi
v Wi-Fi conf orming t
o IEEE 802.11 b/g/n.
v Transfer in 2.4 GHz and 5 GHz.
v Three Wi-Fi modes at the same time:
v Tethering (2.4 GHz).
v 2.4 GHz access point.
v Connect System: 1)
Equipment name: Connect System.
180
Driving
for a minimum of about 5 seconds already
sav es mor
e than the amount of fuel necessa-
ry for restarting.
The engine takes a long time to warm up
when it is idling. Mechanical wear and pollu-
tant emissions are also especially high during
this initial warm-up phase. It is therefore best
to drive off immediately after starting the en-
gine. Avoid running the engine at high speed.
Regular maintenance
Regular servicing helps in saving fuel even
before the engine is started. A well-serviced
engine gives you the benefit of improved fuel
efficiency as well as maximum reliability and
an enhanced resale value. A badly serviced
engine can consume up to 10% more fuel
than necessary.
Avoid short journeys
The engine and catalytic converter need to
reach their optimal operating temperature
in order to minimise fuel consumption and
emissions.
A cold engine consumes a disproportionate
amount of fuel. The engine reaches its work-
ing temperature after about four kilometres
(2.5 miles), when fuel consumption will return
to a normal level. Check tyre pressure
Alw
ays make sure the tyres are inflated to the
correct pressures ››› page 356
to save fuel. If
the pressure is below half bar, fuel consump-
tion may increase by 5%. Due to the greater
rolling resistance, under-inflation also increa-
ses tyre wear and impairs handling.
Do not use winter tyres all year round as
they increase fuel consumption by up to 10%.
Avoid carrying unnecessary loads
Given that every kilo of extra weight will in-
crease the fuel consumption, it is advisable
make sure that no unnecessary loads are be-
ing transported.
Since the luggage rack increases the aero-
dynamic drag of the vehicle, you should re-
move it when not needed. At speeds of
100-120 km/h (62-75 mph), this will save 12%
of fuel.
Save electrical energy
The engine drives the alternator, thereby
generating electricity. This implies that any
increase in power consumption also increa-
ses fuel consumption! For this reason, switch
off any unneeded electrical devices. Devices
that use a lot of electricity includes the blow-
er at a high setting, the rear window heating
or the seat heating*. Plug-in hybrid drive: brak
e early and evenly
to take advantage of energy recovery. Note
Braking and parking
If the running gear or brake system is modi-
fied, the eff ectiv
eness of the ABS could be se-
verely limited.
Hydraulic Brake Assist (HBA)
The brake assist system can reduce the re-
quired braking distance. The braking force is
automatically boosted if you press the brake
pedal quickly in an emergency. You must
keep pressing the brake pedal until the dan-
ger has passed.
Traction control system (ASR)
In the event of the wheels spinning, the ASR
reduces the engine torque to adapt to the
road condition. This helps the car to start
moving, accelerate or climb a gradient.
Electronic differential lock (EDL)
When the EDL detects wheelspin, it brakes
the spinning wheel and directs the power to
the other driven wheel. This function is active
up to approximately 100 km/h (62 mph).
To prevent the disc brake of the braked wheel
from overheating, the EDL cuts out automati-
cally if subjected to excessive loads. The ve-
hicle can still be driven. The EDL will switch on
again automatically when the brake has
cooled down. Tractor-trailer sway mitigation*
If the vehicl
e is pulling a trailer, it will control
the following: tractor-trailers tend to sway.
When the swaying of the trailer is felt by the
vehicle and detected by the ESC, it will auto-
matically brake the towing vehicle within the
limits of the system and mitigate the sway.
Tractor-trailer sway mitigation is not available
in all countries ››› page 312
.
Electronic engine torque management
(XDS)
When taking a curve, the driveshaft differen-
tial allows the outer wheel to turn at a higher
speed than the inner wheel. In this way, the
wheel that is turning faster (outer wheel) re-
ceives less drive torque than the inner wheel.
This may mean that in certain situations the
torque delivered to the inner wheel is too
high, causing the wheels to spin. On the other
hand, the outer wheel is receiving a lower
drive torque than it could transmit. This can
cause a loss of grip on the drive axle, in this
case the front axle, which results in under-
steer or “lengthening” of the trajectory.
The XDS can detect and correct this effect
via the sensors and signals of the ESC.
Via the ESC, the XDS will brake the inside
wheel and counter the excess driving torque of that wheel. This means that the requested
traject
ory is much more precise.
XDS works in combination with the ESC and is
always active, even when ASR is switched off,
or when the ESC is in Sport mode or discon-
nected.
Multi-collision brake
The multi-collision brake consists of automat-
ic braking activated by the Airbag control
unit. It is activated when, in the event of an
accident, the Airbag control unit detects de-
celerations above the activation level, and
braking is managed by the ESC system.
In the event of an accident, the multi-collision
brake can help the driver by braking to avoid
the risk of skidding during the accident and
causing other collisions.
The following actions control automatic brak-
ing during the accident: