2011 Citroen DS4 ignition

The system is reactivated automatically
at every new star t using the key.


Reactivation

This system requires a specific battery with a
special specification and technology (reference
numbers available from a CITROËN dealer or a
qualified workshop).
Fitting a battery not listed by
CITROËN introduces the risk of malfunction of
the system. In the event of a malfunction with the system,
the "ECO OFF"
switch warning lamp flashes,
then comes on continuously.
have it checked by a CITROËN dealer or a
qualified workshop.
In the event of a fault in STOP mode, the
vehicle may stall. It is then necessary to switch
off the ignition and star t the engine again using
the key.


Operating fault
Maintenance

Before doing anything under the
bonnet, deactivate the Stop & Start
system to avoid any risk of injury
resulting from automatic operation of
START mode.
The Stop & Star t system makes use
of advanced technology. All work on
this type of battery must be done only
by a CITROËN dealer or a qualified
workshop. Press the "ECO OFF"
switch again.
The system is active again; this is confirmed
by the switch warning lamp going off and a
message in the instrument panel.

215Driving





Lane departure warning system

System which detects the involuntary crossing
of longitudinal traffic lane markings on the
ground (solid or broken line).
Sensors, fitted below the front bumper, trigger a
warning if the vehicle drifts over a lane marking
(speed higher than 50 mph (80 km/h)).
This system is par ticularly useful on motor ways
and main roads.

Activation



)
Press this button, the indicator lamp comes
on.

The lane depar ture warning system
cannot, in any circumstances, replace
the need for vigilance and responsibility
on the par t of the driver.

Deactivation

You are warned by the vibration of the driver's
seat cushion:


- on the right-hand side, if the marking on the
ground has been crossed on the right,

- on the left-hand side, if the marking on the
ground has been crossed on the left.
No warning is transmitted while the direction
indicator is active and for approximately
20 seconds after the direction indicator is
switched off.
A warning may be transmitted if a direction
marking (e.g. arrow) or non-standard marking
(e.g. graffiti) is crossed.


Detection
Operating fault


The detection may be impeded:


- if the sensors are dir ty (mud,
snow...),

- if the markings on the ground are
worn,

- if there is little contrast between the
markings on the ground and the
road surface.



)
Press this button again, the indicator lamp
goes off.
The status of the system remains in the
memory when the ignition is switched off. In the event of a malfunction,
the ser vice warning lamp comes
on, accompanied by an audible
signal and a message in the screen.
Contact a CITROËN dealer or a qualified
workshop.

Blind spot sensors


This driving assistance system warns the driver
of the presence of another vehicle in the blind
spot angle of their vehicle (areas masked from
the driver's field of vision), as soon as this
presents a potential danger.

Operation


This system is designed to improve safety when driving and is in no circumstances a
substitute for the use of the interior rear view mirror and door mirrors. It is the driver's
responsibility to constantly check the traffic, to asses the distances and relative speeds of
other vehicles and to predict their movements before deciding whether to change lane.
The blind spot sensor system can never replace the vigilance and responsibility of the
driver.



)
On switching on the ignition, or engine
running, press this button to activate the
function; the warning lamp comes on.
Sensors fitted in the front and rear bumpers
monitor the blind spots. A warning lamp appears in the door mirror on
the side in question:


- immediately, when being overtaken,

- after a delay of about one second, when
over taking a vehicle slowly.

Operating fault

In the event of a fault, the warning lamp in the
button flashes then goes off.
Have it checked by a CITROËN dealer or a
qualified workshop.
The system may suffer temporary
interference in certain weather
conditions(rain, hail...).
In particular, driving on a wet sur face
or moving from a dry area to a wet area
can cause false aler ts (for example, the
presence of a fog of water droplets in
the blind spot angle is interpreted as a
vehicle).
In bad or wintry weather, ensure that
the sensors are not covered by mud,
ice or snow.
Take care not to cover the warning
zone in the door mirrors or the
detection zones on the front and rear
bumpers with adhesive labels or other
objects; they may hamper the correct
operation of the system.



)
To deactivate the system, press this button
again; the warning lamp goes off.
The state of the system remains in memory on
switching off the ignition.
The system is automatically
deactivated when towing with a towbar
approved by CITROËN.

System which prevents the vehicle from
exceeding the speed programmed by the driver.
When the programmed speed limit is reached,
pressing the accelerator pedal no longer has
any effect.





Speed limiter

The speed limiter cannot, in any
circumstances, replace the need to
respect speed limits, nor can it replace
the need for vigilance and responsibility
on the par t of the driver. The functions of this system are grouped
together on the steering mounted controls.


1.
Speed limiter mode selection dial.

2.
Programmed value decrease button.

3.
Programmed value increase button.

4.
Speed limiter on/off button.

5.
List of memorised speeds display button.
(see "Memorising speeds")



Steering mounted controls

The programmed information is grouped
together in the instrument panel screen.

6.
Speed limiter on/off indication.

7.
Speed limiter mode selection indication.

8.
Programmed speed value.

9.
Selection of a memorised speed.
(see "Memorising speeds")


Displays in the instrument panel


Operation

The speed limiter is switched on
manually:
it requires a programmed speed of at least
20 mph (30 km/h).
The speed limiter is switched off
by manual
operation of the control.
The programmed speed can be exceeded
temporarily by pressing the accelerator firmly
beyond the point of resistance.
To return to the programmed speed, simply
release the accelerator pedal.
The programmed speed remains in the memory
when the ignition is switched off.

Cruise control

System which automatically maintains the
speed of the vehicle at the value programmed
by the driver, without any action on the
accelerator pedal.
The functions of this system are grouped
together on the steering mounted controls.


1.
Cruise control mode selection dial.

2.
Speed programming/value decrease
button.

3.
Speed programming/value increase button.

4.
Cruise control off/resume button.

5.
Memorised speeds display button.
(see "Memorising speeds")

Steering mounted controls

The cruise control system cannot, in
any circumstances, replace the need to
respect speed limits, nor can it replace
the need for vigilance and responsibility
on the par t of the driver.
You are advised to keep your feet near
the pedals at all times. The programmed information is grouped
together in the instrument panel screen.

6.
Cruise control off/resume indication.

7.
Cruise control mode selection indication.

8.
Programmed speed value.

9.
Selecting a stored speed.
(see "Storing speeds")


Displays in the instrument panel


Operation

The cruise control is switched on
manually: it
requires a minimum vehicle speed of 25 mph
(40 km/h) and engagement of:


- four th gear on the manual gearbox,

- second gear on the electronic gearbox
system or automatic gearbox, in sequential
driving mode,

- position A
on the electronic gearbox
system or D
on an automatic gearbox.
The cruise control is switched off
manually
or by pressing the brake or clutch pedal or
on triggering of the ESP system for safety
reasons.
It is possible to exceed the programmed speed
temporarily by pressing the accelerator pedal.
To return to the programmed speed, simply
release the accelerator pedal.
Switching off the ignition cancels any
programmed speed value.

225Driving
The function displays the following types of message:
The function deselects itself automatically:


- when you engage reverse gear,

- when you switch off the ignition,

- if measuring is not requested,

- within five minutes of selection of the
function,

- if the vehicle speed exceeds the
threshold of 45 mph (approx. 70 km/h) for
one minute.

If the lateral distance between your vehicle and
the parking space is too large, the system may
not be able to measure the space.
The system remains available after each
measurement and can therefore measure
several spaces in succession.
In poor or wintry weather, ensure that the
sensors are free of dir t, ice or snow.
The parking space sensor system deactivates
the front parking sensors when measuring
forwards.

Parking possible


Parking difficult


Parking not advised

If there is a fault, have the system
checked by a CITROËN dealer or a
qualified workshop.

235Checks

























Checking levels

Check all of these levels regularly and top them up if necessary, unless other wise indicated.
If a level drops significantly, have the corresponding system checked by a CITROËN dealer or a qualified workshop.


Oil level


Engine oil change

Refer to the ser vicing booklet for the inter val for
this operation.
In order to maintain the reliability of the engine
and emission control system, the use of
additives in the engine oil is prohibited.


Oil specifi cation

The oil must correspond to your engine
and conform to the manufacturer's
recommendations.



Brake fluid level


Changing the fl uid

Refer to the Maintenance and Warranty Guide
for the inter val for this operation.


Fluid specifi cation

The brake fluid must conform to the
manufacturer's recommendations and meet
the DOT4 standard.
The brake fluid level should be close
to the "MA X" mark. If it is not, check
the brake pad wear.
The reading will only be correct if
the vehicle is on level ground and
the engine has been off for more than
30 minutes.
The check is carried out either when the ignition
is switched on using the oil level indicator in the
instrument panel, or using the dipstick.
When working under the bonnet, take
care, as cer tain areas of the engine
may be extremely hot (risk of burns).
It is normal to top up the oil level
between two ser vices. CITROËN
recommends that you check the oil
level, and top up if necessary, every
3 000 miles (5 000 kilometres).