95
Normal operation of the ABS may make
itself felt by slight vibrations of the brake
pedal.
When braking in an emergency, press
very firmly and maintain this pressure.
When changing wheels (tyres and rims),
ensure that these are approved for your
vehicle.
After an impact, have these systems
checked by a CITROËN dealer or a
qualified workshop.
Dynamic stability control
(DSC) and anti-slip
regulation (ASR)
Activation
These systems are activated automatically
every time the vehicle is started.
As soon as they detect a problem of grip or
trajectory, these systems act on the operation
of the engine and brakes.This is indicated by this warning
lamp flashing in the instrument
panel.
Deactivation/Reactivation
In exceptional conditions (moving a vehicle that
is bogged down in mud, stuck in snow, on loose
soil, etc.), it may prove useful to deactivate the
DSC/ASR systems, so that the wheels can
move freely and regain grip.
It is however recommended that the systems
be reactivated as soon as possible.
These systems are reactivated automatically
every time the ignition is switched off, or from
31
mph (50 km/h).
However, below 31
mph (50 km/h) you can
reactivate them manually.
To deactivate the systems, press
this button or turn the dial to this
position.
The indicator lamp in the button or dial comes
on: the DSC/ASR systems no longer act on the
operation of the engine. To reactivate the system:
Press this button.
Or Turn the dial to this position.
The indicator lamp in the button or the dial goes off.
Malfunction
Illumination of this warning lamp,
accompanied by the display of a
message and an audible signal,
indicates a fault with the system.
Contact a CITROËN dealer or a qualified
workshop to have the systems checked.
5
Safety
96
ASR/DSC
These systems offer increased safety
in normal driving, but they should not
encourage the driver to take extra risks or
drive at high speed.
It is in conditions of reduced grip (rain,
snow, ice) that the risk of loss of grip
increases. It is therefore important for your
safety to keep these systems activated in
all conditions, and particularly in difficult
conditions.
The correct operation of these
systems depends on obser vation of
the manufacturer's recommendations
regarding both the wheels (tyres and
rims), braking and electronic components
and the assembly and repair procedures
used by CITROËN dealers.
The use of snow tyres is recommended,
in order to be able to benefit from the
efficiency of these systems in winter
conditions.
In this case, it is essential to equip the
four wheels with tyres approved for your
vehicle.Post Collision Safety Brake
(PCSB)
With automatic post-collision braking, in the
event of an accident, the ESC system triggers
an automatic braking action in order to reduce
the risk of cumulative collisions by rebound, for
example, if the driver does not react.
Automatic braking inter venes after a frontal,
lateral or rear impact.
Conditions for operation
The impact has resulted in the deployment
of the airbags or seat belt pyrotechnic
pretensioners.
The braking systems and electric functions of
the vehicle must remain operational after the
collision.Automatic braking is accompanied by
illumination of the vehicle's brake lamps.
The system does not inter vene if driver
action is detected:
-
A
ccelerator pedal pressed.
-
B
rake pedal pressed.
The system works within the limits of the
laws of physics.
It is the driver's responsibility to
continuously adapt the vehicle's speed to
the driving and road conditions.
Malfunctions
Braking systems fault
Airbags or pyrotechnic
pretensioning systems fault
Drive carefully.
Go to a CITROËN dealer or a qualified
workshop as soon as possible.
Trailer stability assist (TSA)
When towing, this system reduces the risk of
the vehicle or trailer swaying. Simultaneous illumination of these two warning
lamps.
Simultaneous illumination of these two warning
lamps.
Safety
192
The pressures given on the tyre pressure label
are valid for "cold" tyres. If you have driven for
more than 10 minutes or more than 6 miles
(10
kilometres) at more than 31 mph (50 km/h),
0.3
bar (30 kPa) should be added to the values
given on the label.
Under-inflation increases fuel consumption.
Non-compliant tyre pressure causes premature
wear on tyres and has an adverse effect on the
vehicle's road holding – Risk of an accident!
Driving with worn or damaged tyres reduces
braking efficiency and control of the vehicle's
steering. Regular inspections of the condition
of tyres (tread and sides) and rims are
recommended as well as making sure that
valves are fitted.
Using different size wheels and tyres from
those specified can affect the lifetime of tyres,
wheel rotation, ground clearance and the
speedometer reading and have an adverse
effect on road holding.
Fitting different tyres on the front and rear axles
can cause the ESC to mistime. Only use products recommended by
CITROËN or products of equivalent quality
and specification.
In order to optimise the operation of
components as important as those in the
braking system, CITROËN selects and
offers very specific products.
After washing the vehicle, dampness, or
in wintry conditions, ice can form on the
brake discs and pads: braking efficiency
may be reduced. Make light brake
applications to dry and defrost the brakes.
AdBlue® (BlueHDi
engines)
SCR system
Using a liquid called AdBlue® that contains
urea, a catalytic converter turns up to 85% of
the nitrogen oxides (NOx) into nitrogen and
water, which are harmless to health and the
environment. The AdBlue
® is contained in
a special tank holding about
17
litres.
An alert system is triggered automatically once
the reser ve level is reached: you can then drive
for a further 1,500
miles (2,400 km) before the
tank is empty.
For more information on the Warning
and indicator lamps and the associated
alerts, or the Indicators , refer to the
corresponding sections.
Once the AdBlue
® tank is empty, a system
r
equired by regulations prevents starting
of the engine.
If the SCR system is faulty, the level of
emissions from your vehicle will no longer
meet the Euro 6 standard: your vehicle
becomes polluting.
In the event of a confirmed fault with the
SCR system, you must go to a CITROËN
dealer or a qualified workshop as soon
as possible: after a running distance of
685
miles (1,100
km), a system will be
triggered automatically to prevent engine
starting.
In either case, a range indicator gives you
the distance you can travel before the
vehicle is immobilised.
To respect the environment and ensure
compliance with the Euro 6 standard, without
adversely affecting the per formance or fuel
consumption of Diesel engines, CITROËN
has taken the decision to equip its vehicles
with a system that associates SCR (Selective
Catalytic Reduction) with a Diesel particle filter
(DPF) for the treatment of exhaust gases.
Practical information