CITROEN C4 2006 Repair Manual

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62 Starting the vehicle
- To start the engine, the gear
lever has to be in position N.
- Fully depress the brake pedal.
- Action the starter.
- With the engine running, depend- ing on your preference place the
lever on R, A or M.
- Check the position engaged on the rev counter.
- Release the handbrake.
- Release the brake pedal and accelerate.
6 S P E E D E L E C T R O N I C G E A R B O X S Y S T E M
G E N E R A L I N F O R M A T I O N
Using the (6 speed) Electronic
Gearbox SystemNeutral
If the vehicle is moving,
do not select this position,
even momentarily. Reverse gear
Engaging reverse gear :
Only engage reverse gear
when the vehicle is sta-
tionary.
If the vehicle is moving at a very
low speed, if reverse gear is
requested (position R) this will be
taken into account only when the
vehicle comes to a halt.
The «foot on brake» warning lamp
may flash in the instrument panel
to remind you to brake.
If the vehicle is moving at a high
speed, if reverse gear is requested
the warning lamp “N” will flash
and your vehicle will go automati-
cally into neutral. To re-engage a
gear, you have only to return the
gear lever to position A or M.
A sound signal indicates when
reverse gear is engaged.
If parking assistance is deacti-
vated, the sound signal for reverse
gear engaged is absent.
If the lever is not in position
N, the
warning lamp “N” flashes on the
rev counter.
If the brake pedal is not pressed
down, the warning lamp “Foot on
brake” flashes in the instrument
panel.
In both cases, the engine does
not start ; recommence the above
procedure.
Note : If the vehicle has been
stationary for a long time, or if you
have pressed the brake pedal a
number of times while stationary,
it will be necessary to press the
brake pedal hard down in order to
authorise the engine to start.

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63
Sport option
To select the Sport option
Press on button
S, situated on the
lever grille.
The warning lamp “S” displays on
the rev counter.
This option can be activated either
in automatic mode or in manual
mode.
To deactivate the Sport option
Press again again on button S on
the lever grille.
The warning lamp “S” disappears
on the rev counter.
Note: the Sport option is deacti-
vated whenever you switch off the
ignition. Stopping the engine
Before switching the engine off,
you can choose :
- to leave the vehicle in neutral ;
for that, place the lever in posi-
tion N,
- to leave the vehicle with a gear engaged ( R, A or M) ; for that,
place the lever in the position
chosen. In this case, the vehicle
cannot be moved.
In all cases, it is essential to apply
the handbrake.
Before undertaking any operation
in the engine compartment, make
absolutely sure that the gearbox is
in neutral and that the handbrake
is on.
Acceleration
For performance in acceleration
(for example to overtake another
vehicle), you have only to press
the pedal hard down to go beyond
the end-of-travel switch.
Starting on a gradient:
- Using the handbrake
If starting on a gradient, acceler-
6 S P E E D E L E C T R O N I C G E A R B O X S Y S T E M
G E N E R A L I N F O R M A T I O N
The engine can only be
started if the brake pedal is pressed and
the gear lever is in position N.
The warning lamp “foot on
brake” flashes on the display.
With the engine running,
before accelerating away
check the position engaged
by looking at the lever grille or the rev counter : R, A or M.
If you are stationary with the engine running, take care to leave your gear selector in position N.
Automatic mode
Manual forward drive
Selector position for
manual gear changing :
- Push the lever to change to a higher gear.
- Pull the lever to change to a lower gear.

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64 To select automatic mode
Place the selection lever in posi-
tion
A.
The “AUTO” warning lamp dis-
plays on the rev counter to confirm
the selection.
The gearbox then operates in
autoactive mode, without interven-
tion on your part.
It constantly selects the gear best
adapted to the following param-
eters:
- Style of driving.
- Road profile. Cancellation of automatic
mode
Move the gear lever from position
A
to select a different position.
The “AUTO” warning lamp disap-
pears on the rev counter.
Instant manual mode
Even in automatic mode, if you
touch the controls under the
steering wheel
“+” or “-” you
immediately change gear.
The “AUTO” warning lamp
remains displayed on the rev
counter.
In the absence of any further
action, automatic mode reacti-
vates to cope with the prevailing
driving conditions.
6 S P E E D E L E C T R O N I C G E A R B O X S Y S T E M
A U T O M A T I C M O D E

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65
Control using the gear lever
Position the gear lever in posi-
tion
M, then :
- push the lever to engage a higher gear,
- pull the lever to change down. Controls at the steering wheel
Place the gear lever in position
M,
and then the controls at the steer-
ing wheel will give you access to
the six gears in forward drive.
To change gear:
- Press behind the control “+” at
the steering wheel to engage a
higher gear.
- Press behind the control “-” at
the steering wheel to change
down.
Note: These controls at the steer-
ing do not permit you to select
neutral or reverse gear. Observations:
When the vehicle is braking or
reducing speed, the gearbox
changes down automatically to a
suitable gear.
In manual mode, it is not neces-
sary to release the accelerator
during changes of gear.
Changes of gear are accepted only
if consistent with engine speed.
Under heavy acceleration, a higher gear will only be engaged
when the driver actions the gear lever or the controls at the steering wheel.
6 S P E E D E L E C T R O N I C G E A R B O X S Y S T E M
M A N U A L M O D E

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66 Gear lever position
The position of the gear selector is
displayed on the rev counter.
For safety:
- The gear lever can only be disengaged from position P if you are
pressing the brake pedal.
- When a door is opened, an audible signal sounds if the lever is not in
position P.
- Before leaving the vehicle, make absolutely certain that the PARK or P
position is selected.
Automatic gear selector lever-
Park (Position P)
- Reverse gear (Position R)
- Neutral (Position N)
- The automatic gearbox offers
you: - Operation in auto-active
mode , with automatic adap-
tation to your style of driving.
(Position D)
- Operation in sequential
mode , with manual gear
changing, (pushing the selec-
tor towards + or -). (Position
M )
- Operation in Sport or Snow
automatic mode (position D
and press on control S or
)
A U T O M A T I C G E A R B O X

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67
The engine can only be started
when the lever is at position P
or N.
A safety device ensures that
starting is impossible in the other
positions.
After starting the engine, with
selector on
P, depress the brake
pedal then shift the selector to D,
R or M,
- D for automatic,
- R for reverse,
- M for manual operation.
A shift from D (automatic) to M
(manual) is possible at any time. Park
- Never select position N if the vehicle is moving.
- Never select positions P or R if the vehicle is not completely station-
ary.
If, while the vehicle is moving, position N is engaged inadvertently, let
the engine idle before engaging position D or M.
Using the automatic gearbox
Do not engage until the vehicle is completely stationary.
To avoid any movement of the vehicle when parked, select positi
on P and
apply the handbrake firmly. Check that the selector is in the P position to
ensure that the driving wheels are locked.
Reverse gear
Do not engage until the vehicle is stationary, foot on b rake. To avoid engine
hesitation, do not accelerate immediately after the selection .
Neutral
Do not select this position, even momentarily, when the vehi cle is in
motion.
A U T O M A T I C G E A R B O X

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68 Drive
The gearbox always selects the gear best adapted to the foll owing param-
eters:
- style of driving,
- route profile,
- vehicle load.
In this way the gearbox operates in autoadaptive mode, without the need
for your intervention.
For certain manoeuvres (for example overtaking), it is possible to ob tain
maximum acceleration by pressing hard down on the accelerator pedal ,
which may trigger automatic changedown to a lower gear.
Note
During braking, the gearbox may kick down automatically in order t o offer
an effective engine brake.
If you rapidly lift your foot off the accelerator, the gearb ox will guard your
safety by not changing up again.
Sequential forward drive
Selector position for manual gear changing.
- Selector at M.
- Push the selector towards the sign “+” to change up a gear.
- Pull the selector towards the sign “-” to change down a gear.
Note: Passage from one gear to another is only possible when vehicle
speed and engine speed permit.
The Sport and Snow programmes are not operative in sequential mode.
The change from position D (drive in automatic mode) to position M (drive
in sequential mode) or vice versa may be effected at any time.
A U T O M A T I C G E A R B O X

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69
Operation in Sport or Snow automatic mode
Select the driving mode:
- Normal, for regular use, the warning lamps
and are not illumi-
nated.
- Sport, for more responsive driving, to provide maximum performance
and acceleration.
- Snow, for smooth driving in wintry conditions.
• With selector on D, press button :
the warning lamp in the rev
counter will light up, you are in «SPORT» mode.
• With selector on D, press button :
the warning lamp in the rev
counter will light up, you are in «SNOW» mode.
• Press button again, warning lamps
and go out, the “NORMAL”
mode is active.
- Flashing of the warning lamp for the position requested si gnals that
this position has not yet been permitted.
- When the warning lamp is fixed, the position is confirmed.
- The display of a dash in the rev counter indicates a fault.
Urgently consult a CITROËN Dealer
If there is a fault :
- A sharp hesitation may be felt when you select R for reverse gear.
- The gearbox is stuck in a gear.
- Do not exceed 100 km/h (approx. 60 mph).
Urgently consult a CITROËN Dealer
A U T O M A T I C G E A R B O X

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70 Handbrake
The parking brake is applied, with the vehicle stationary, b
y pulling on the
lever with a force that is proportionate to the steepness of the slope.
To facilitate the action on the lever, you are recommended t o press the
brake pedal at the same time.
In all circumstances, as a precautionary measure, engage first gear. For
vehicles equipped with an automatic gearbox, ensure that the parking
position ( P) is selected.
On steep slopes, turn the steering towards the kerb.
To release the handbrake, press on the end of the lever, pu ll the lever up
then lower it fully.
The warning lamp will come on if the handbrake is on or not fully released.
If the parking brake is off, the lighting of this warning lamp, in conjunction with the STOP
warning lamp, indicates that the brake fluid level is low or that the braking distributor is
malfunctioning.
It is essential to stop the vehicle.
Urgently consult a CITROËN Dealer
B R A K E S

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71
ABS - Anti-lock Braking System
This system improves vehicle safety by preventing the wheels from lockin
g under emergency braking or
when braking on surfaces offering poor adhesion. It thus allo ws control of the steering to be retained.
The operational capacity of the various electrical components of the ABS is continuously monitored, both before
and during your journey. On switching on the ignition, th e ABS warning lamp will light up and then should go out
after a few seconds.
If the warning lamp stays on, this means that the ABS has been disconnected because a fault was detected. If
the warning lamp lights up when you are driving, this means t hat the ABS system is not active. In either case, the
normal braking system remains effective, as on a vehicle without ABS. Nevertheless, to restore the additional
safety afforded by correct functioning of ABS, it is recommended tha t the vehicle be taken to a CITROËN dealer
as soon as possible.
On slippery roads (loose stones, snow, ice, etc.), it remains essenti al to drive with caution.
Emergency braking assistance
This system enables you in an emergency to achieve the optimum braki ng pressure, thus to reduce the stopping
distance. It is triggered by your speed of action on the brake pedal, which reduces its resistance to that action.
Keep the brake pedal pressed until the vehicle comes to a stop.
B R A K E S