160Driving and operatingThe control indicator m will flash and
then stay on once the electric parking brake is fully applied. Before leaving
the vehicle, check the control
indicator m to ensure the parking
brake is applied.
If the control indicator m flashes
continuously, then the electric parking
brake is only partially applied or there
is a problem with the electric parking
brake. A message is displayed in the
Driver Information Centre. Release
the electric parking brake and try to
apply it again. If the control indicator
m does not illuminate or keeps
flashing, seek the assistance of a
workshop.
Do not drive the vehicle if the control
indicator m is flashing 3 79.
If the electric parking brake is applied while the vehicle is moving, a chimewill sound and a message will be
displayed in the Driver Information
Centre. The vehicle will decelerate as
long as the switch is pulled.
Releasing the switch m during the
deceleration process will release the
parking brake. If the switch m ispulled until the vehicle stops moving,
the electric parking brake will remain
applied.
When the electric parking brake fault
indicator j illuminates, the electric
parking brake has detected a system
problem and is operating with
reduced functionality. To apply the
electric parking brake when j
illuminates, pull the switch m and
hold it until the control indicator m
remains on. If the control indicator j
illuminates, seek the assistance of a
workshop.
The vehicle may automatically apply
the electric parking brake in some
situations when the vehicle is not
moving. This is normal, and is done to periodically check the correct
operation of the electric parking brake
system.
If the electric parking brake fails to
apply, the rear wheels should be
blocked to prevent vehicle
movement.Releasing
1. Switch on the vehicle.
2. Keep brake pedal depressed.
3. Push switch m.
If attempting to release the electric parking brake without the brake pedal
being applied, a chime will sound and
a message will be displayed in the Driver Information Centre. The
electric parking brake is released
when m is off.
If control indicator j is illuminated, the
electric parking brake has detected a
system problem, and is operating with reduced functionality. To release the
electric parking brake when j is on,
push down the switch m and hold it
down until the control indicator j
goes off. If the control indicator
remains illuminated, seek the
assistance of a workshop.
Note
Driving with the parking brake on
can overheat the brake system and
cause premature wear or damage to brake system parts. Make sure that
Driving and operating161the parking brake is fully released
and the control indicator m is off
before driving.
Automatic release
The electric parking brake is
automatically released when the
vehicle is running, placed into gear
and an attempt is made to drive away.
Avoid rapid acceleration when the
electric parking brake is applied, to
reduce wear of parking brake lining.
Electric parking brake control
indicator m 3 79.
Electric parking brake fault control
indicator j3 79.
Driver Information Centre 3 82.
Regenerative braking
Some braking energy from the
moving vehicle is turned back into
electrical energy. This energy is then
stored back into the high voltage
battery system, increasing energy
efficiency.
Regenerative power may be limited
when the high voltage battery is near
full charge or cold.Regeneration on demand
Regeneration on demand allows
increased deceleration by pressing
and holding the steering wheel
paddle. It works in D (Drive) and L
(Low). The accelerator pedal must be mostly released for it to work.
If regenerative braking is active, the regenerative active icon with arrowsis shown as green.
Regenerative braking 3 76.
Cruise control will switch off and the
brake lights may come on when this
feature is activated.
If the vehicle is in D (Drive) and is
brought to a complete stop while the regenerative braking paddle is held,
the vehicle will not creep forward
when the paddle is released. The
accelerator pedal must be pressed to
move the vehicle forward.
One-pedal driving 3 154.
If the vehicle is on a steep gradient,
the brake pedal will be required to
hold the vehicle.
The brake controller applies the
hydraulic brakes using a pump. You
may hear the pump during some
braking manoeuvres, such as rapid
brake application or during
regenerative braking as the vehicle
comes to a stop. This is normal
operation.
Hill Top ReserveHill Top Reserve enables you to
maximise regenerative braking
efficiency when driving from a higher
elevation immediately after charging.
When switched on, this feature will
stop the charging process before the
162Driving and operatinghigh voltage battery is full, allowing
space for energy from regenerative
braking.
This feature also integrates with the
Location-based charging feature,
allowing you to configure the system so it is enabled when you are at home ( On – home only ) or away (On – away
only ).
Location based charging 3 197.Ride control systems
Traction Control system The Traction Control system (TC) is a component of the Electronic Stability
Control (ESC).
TC improves driving stability when
necessary, regardless of the type of
road surface or tyre grip, by
preventing the drive wheels from
spinning.
As soon as the drive wheels starts to
spin, electric drive unit output is
reduced and the wheel spinning the
most is braked individually. This
considerably improves the driving
stability of the vehicle on slippery road
surfaces.
TC is operational as soon as the
control indicator b extinguishes.
When TC operates b flashes.
9
Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 80.
Deactivation
TC can be switched off when spinning of drive wheels is required: press b
briefly.
Driving and operating163
Control indicator k illuminates.
A status message appears in the
Driver Information Centre when TC is
deactivated.
When TC is deactivated, ESC
remains active but with a higher
control threshold.
TC is reactivated by pressing b
again. A status message pops-up in
the Driver Information Centre when
TC is reactivated.
TC is also reactivated the next time
the vehicle is switched on.
Caution
Do not repeatedly brake or accelerate heavily if TC is off. The
vehicle's driveline could be
damaged.
Fault
If there is a fault in the system the
control indicator b illuminates
continuously and a message appears in the Driver Information Centre. Thesystem is not operational.
Have the cause of the fault remedied
by a workshop.
Electronic Stability Control
Electronic Stability Control (ESC)
improves driving stability when
necessary, regardless of the type of
road surface or tyre grip.
As soon as the vehicle starts to
swerve (understeer / oversteer),
electric drive unit output is reduced and the wheels are braked
individually. This considerably
improves the driving stability of the
vehicle on slippery road surfaces.ESC is operational as soon as the
control indicator b extinguishes.
When ESC operates b flashes.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 80.
Deactivation
Driving and operating165With the Traction Control system or
Electronic Stability Control, the
system may limit wheel spin while
using cruise control. If this happens,
the cruise control will automatically
disengage.
Traction Control system 3 162.
Electronic Stability Control 3 163.
If a collision alert occurs when cruise
control is activated, cruise control is
disengaged.
Forward collision alert 3 167.
Do not use the cruise control if it is not
advisable to maintain a constant
speed.
Switching on the system
Press m, control indicator m in
instrument cluster illuminates white
and cruise control is on standby.
Press m again to deactivate cruise
control.
Activation of the functionality Accelerate to the desired speed and
press SET/-, the current speed is
stored and maintained. The desired set speed briefly appears in the
instrument cluster. Accelerator pedal
can be released.
Vehicle speed can be increased by depressing the accelerator pedal.
When the accelerator pedal is
released, the previously stored speed
is resumed.
Control indicator m 3 81.
Increase speed
With cruise control active, press
RES/+ until the desired speed is
reached or press RES/+ repeatedly:
speed is increased in small
increments.
Reduce speed
With cruise control active, press SET/- until the desired speed is
reached or press SET/- repeatedly:
speed is decreased in small
increments.
Resume speedIf the cruise control is set at a desired speed and then the brakes are
applied, the cruise control is
disengaged without erasing the set
speed from memory. Once the
vehicle speed is approx. 25 km/h or
higher, press RES/+. The vehicle returns to the previously set speed.
Deactivation of the functionality
Press y, control indicator m in
instrument cluster illuminates white.
166Driving and operatingCruise control is deactivated, but not
switched off. Last stored speed
remains in memory for later speed
resume.
Automatic deactivation: ● Vehicle speed is below approx. 25 km/h.
● The brake pedal is depressed.
● The selector lever is in N.
● The Traction Control system or Electronic Stability Control is
operating.
Switching off the system
Press m, control indicator m in
instrument cluster extinguishes. The
stored speed is deleted.
Speed limiter
The speed limiter prevents the
vehicle exceeding a preset maximum
speed.
The maximum speed can be set at
speeds above 25 km/h.The driver can only accelerate up to
the preset speed. Deviations from the
limited speed may occur when driving downhill.
The preset speed limit is displayed in
the Driver Information Centre when
the system is active.
Activation of the functionality
Press L.
If cruise control has been activated
beforehand, it is switched off when
speed limiter is activated and the
control indicator m extinguishes.
Set speed limit
Accelerate to the desired speed and
briefly press SET/-: the current speed
is stored as maximum speed.
Speed limit is displayed in the Driver
Information Centre.
Change speed limit
With speed limiter active, press
RES/+ to increase or SET/- to
decrease the desired maximum
speed.
168Driving and operatingAlerting the driver
The vehicle ahead control indicator
A illuminates green in the instrument
cluster when the system has detected
a vehicle in the driving path.
The control indicator A changes to
yellow when the distance to a
preceding moving vehicle gets too
small or when approaching another
vehicle too rapidly.Caution
The colour lighting of this control
indicator does not correspond to
local traffic laws on following
distance. The driver bears full
responsibility for maintaining safe
following distance according to
applicable traffic rules, weather
and road conditions etc. at all
times.
When the time to a potential collision
with a vehicle in front gets too small
and a collision is imminent, the driver
is notified by a flashing red LED stripe which is projected on the windscreen
in the driver's field of view.
Simultaneously a warning chime
sounds. Depress the brake pedal and
steer the vehicle, if it is required by the
situation.
Selecting the alert sensitivity
The alert sensitivity to near, medium
or far.Press V, the current setting is shown
on the Driver Information Centre.
Press V repeatedly to change the
alert sensitivity. The selected setting is also displayed in the Driver
Information Centre. The last selected setting will be stored when the vehicle
is switched off.
Driving and operating169
DeactivationThe system can be deactivated in the
personalisation menu 3 91.
The forward collision alert will be activated again with the last selected
alert sensitivity when the vehicle is
switched on next time.
General information
9 Warning
Forward collision alert is just a
warning system and does not
apply the brakes. When
approaching a vehicle ahead too
rapidly, it may not provide you
enough time to avoid a collision.
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.
The complete attention of the
driver is always required while
driving. The driver must always be
ready to take action and apply the
brakes.
System limitations
Forward collision alert is designed to warn about vehicles only, but may
react also to other objects.
In the following cases, forward
collision alert may not detect a vehicle ahead or sensor performance is
limited:
● on winding roads
● when weather limits visibility, such as fog, rain, or snow
● when the sensor is blocked by snow, ice, slush, mud, dirt,
windscreen damage or affected
by foreign items, e.g. stickers
Following distance
indication
The following distance indication
displays the distance in seconds to a
preceding moving vehicle. The front
camera in the windscreen is used to
detect the distance of a vehicle
directly ahead in the vehicle's path. It
is active at speeds above 8 km/h.
When a preceding vehicle is detected
ahead, the distance is indicated in
seconds, displayed on a page in the
Driver Information Centre.
Select Information menu via steering
wheel buttons and press G to select
following distance indication 3 82.
The minimum indicated distance is
0.5 seconds.
If there is no vehicle ahead or the vehicle ahead is out of range, two
dashes will be displayed: -.- sec.