engine Citroen C4 AIRCROSS RHD 2014 1.G Service Manual
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4
Driving
   
Stopping - Starting on a slope 
 
 
It is essential to use the parking brake to 
hold the vehicle on a slope and not the 
accelerator pedal. 
 
  When starting on a slope, accelerate gradually 
while releasing the parking brake.  
 
 
Manual mode 
 
 
 
 ) 
  Select position  +/- 
. 
   
 ) 
  Use the steering mounted controls or the 
gear lever to change gear.  
  The gears engaged appear in succession in the 
instrument panel screen. 
  The gear change instructions are only carried 
out if the engine speed permits it. 
  You can change gear without taking your foot 
off the accelerator pedal. 
  When decelerating, the gearbox changes down 
automatically. 
  With the vehicle stationary, first gear is 
engaged.  
 
 
Automated mode 
 
 
 
 
 ) 
  Select position  D 
.  
   
"D" 
 appears in the instrument panel screen. 
  The gearbox operates in auto-active mode, 
without any action on the part of the driver. 
  It continuously selects the gear most suited to 
the conditions of: 
   
 
-  driving style, 
   
-  road characteristics, 
   
-  vehicle load.  
  To optimise driving comfort and obtain the most 
suitable gear, avoid sharp variations in the 
pressure on the accelerator pedal.  
   
For the best acceleration, when 
overtaking another vehicle, for example, 
press firmly on the accelerator going 
beyond the point of resistance.   
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118Driving
   
Manual gear changing 
 
In the automated mode, you can take over 
control temporarily at any time using the 
steering mounted controls. 
  The use of these controls permits manual 
selection of the gears in situations which 
require a faster change down than that offered 
in automated mode (arrival at a roundabout, 
exit from a car park with a steep gradient, 
over taking...). 
  The gearbox engages the gear requested if 
the engine speed permits it. The gear engaged 
appears. 
  To return to the automated mode, do one of the 
following: 
   
 
-   press the back of the  "+/OFF" 
 steering 
mounted control  3 
 for approximately 
2 seconds, 
   
-   move the gear lever quickly towards 
position  +/- 
 and then return it to position  D 
, 
   
-   stop the vehicle.  
 
 
 
 
Stopping the vehicle    
Operating fault 
 
With the ignition on, if the message  "Slow 
down" 
 or  "Service required" 
 appears in 
the instrument panel screen, this indicates a 
gearbox malfunction. 
  When a message is displayed, carry out the 
following operations: 
   
 
-   slow down and stop your vehicle in a safe 
place, 
   
-   place the lever in position  P 
 and let the 
engine run, 
   
-   open the bonnet to allow the engine to 
cool.  
  If the message disappears for a long period, 
you can set off again. 
  If the message remains displayed or appears 
frequently, contact a CITROËN dealer or a 
qualified workshop without delay.     Before switching off the engine, you must place 
the gear lever in position  P 
. 
  You must apply the parking brake to immobilise 
the vehicle.   
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Driving
   
Emergency release 
 
If the battery is discharged or if the gear lever 
locking mechanism is damaged, it is possible 
for the gear lever to be locked in position  P 
, 
even when you press the brake pedal firmly.   However, if you have to move the vehicle, 
release the gear lever using the following 
procedure: 
   
 
 ) 
  Apply the parking brake. 
   
 ) 
  Switch off the engine if necessary. 
   
 ) 
  Remove the cap  A 
, using a flat screwdriver 
covered with a cloth. 
   
 ) 
  Press the brake pedal firmly. 
   
 ) 
  Put the ignition switch into position ACC 
(ACC mode, if you vehicle has the Keyless 
Entry and Starting system). 
   
 ) 
  Insert the screwdriver into the aperture. 
   
 ) 
  While pushing the screwdriver downwards, 
move the gear lever to position  N 
.  
     
You must contact a CITROËN dealer 
or a qualified workshop to have the 
system checked 
.  
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Driving
   
 
 
 
 
Hill start assist 
 
System which keeps your vehicle immobilised 
temporarily (approximately 2 seconds) when 
starting on a gradient, the time it takes to 
move your foot from the brake pedal to the 
accelerator pedal. 
  This function is only active when: 
   
 
-   the vehicle is completely stationary, with 
your foot on the brake pedal, 
   
-   when certain conditions of gradient are 
met, 
   
-   with the driver’s door closed.  
  The hill start assist function cannot be 
deactivated.  
   
On an ascending slope, with the vehicle 
stationar y, the vehicle is held for a brief 
moment when you release the brake pedal: 
 
   
 
-   if you are in first gear or neutral with a 
manual gearbox, 
   
-   if you are in position  D 
 with the CVT 
gearbox.   
 
Operation 
 
 
On a descending slope, with the vehicle 
stationar y and reverse gear engaged, the 
vehicle is held for a brief moment when you 
release the brake pedal. 
 
 
 
   
Do not leave the vehicle while it is being 
held in the hill start assist phase. 
  If you need to leave the vehicle while 
the engine is running, apply the parking 
brake.  
 
 
 
Operating fault  
 
If a fault occurs with the system, this warning 
lamp comes on, accompanied by a message 
in the instrument panel screen. Contact a 
CITROËN dealer or a qualified workshop to 
have the system checked. 
   
When the engine is not running, 
including periods on standby with 
the Stop & Start (AS&G) system, the 
function is not operative.  
  
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4
Driving
   
 
 
 
 
 
 
 
Stop & Start (Auto Stop & Go) function 
 
 
Operation 
 
 
Going into engine STOP mode 
 
The  "AS &G" 
 warning lamp comes on in 
the instrument panel or the instrument 
panel screen and the engine goes into 
standby after a few seconds: 
   
 
-   with a manual gearbox 
, with the vehicle 
stationary and your foot on the brake, when 
you put the gear lever into neutral and 
release the clutch pedal.  
 
   
Never refuel with the engine in STOP 
mode; you must switch off the ignition 
with the key or the START/STOP 
button.      
When the engine is stopped 
automatically, the operation of certain 
vehicle systems, such as for example, 
braking, power steering... are modified. 
  Ta k e  c a r e 
.  
 
 
Special cases: STOP mode not 
available 
  STOP mode is not invoked when: 
   
 
-   the driver's seat belt is not fastened, 
   
-   the bonnet is open, 
   
-   the vehicle has not exceeded 3 mph 
(5 km/h) since the last engine start, 
   
-   the vehicle has restarted less than 
10 seconds ago, 
   
-   the engine is needed to maintain a 
comfortable temperature in the passenger 
compartment, 
   
-   demisting is active, 
   
-   some special conditions (battery charge, 
engine temperature, braking assistance, 
ambient temperature...) where the engine is 
needed to assure control of a system. 
   
-  the  "AS &G" 
 warning lamp is 
flashing in the instrument panel.  
   
This operation is per fectly normal. 
 
     
The Stop & Start (Auto Stop & Go) function puts the engine temporarily into standby during stops in the traffic (red lights, traffic jams, or other...). 
The engine restarts automatically as soon as you want to move off. The restart takes place instantly, quickly and silently. 
  Per fect for urban use, the Stop & Start (Auto Stop & Go) function reduces fuel consumption and exhaust emissions as well as the noise level when 
stationary.   
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Driving
   
Going into engine START mode 
 
The  "AS &G" 
 warning lamp goes off 
and the engine starts automatically: 
   
 
-   with a manual gearbox 
, when you  fully 
 
depress the clutch pedal.  
   For safety reasons or to ensure smooth 
operation, START mode is invoked 
automatically when: 
   
Special cases: START invoked 
automatically 
   
 
-   the speed of the vehicle exceeds 2 mph 
(3 km/h), 
   
-   some special conditions (battery charge, 
engine temperature, braking assistance, 
ambient temperature...) where the engine is 
needed to assure control of a system.  
  If the system has been deactivated in 
STOP mode, the engine will not start.     At any time, press the  "AS &G O FF " 
 switch to 
deactivate the system. 
   
Deactivation 
 
In this case the  "AS &G" 
 warning lamp 
flashes for few seconds, then goes off. 
   
This operation is per fectly normal. 
 
 
 
 
This is confirmed by the  "AS &G O FF "   
warning lamp coming on in the instrument 
panel or instrument panel screen.  
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4
Driving
  The system is reactivated automatically 
at every new start using the key or the 
START/STOP button.  
 
 
Reactivation 
 
Press the  "AS &G O FF " 
 switch again. 
  The system is active again; this is confirmed by 
the  "AS &G O FF " 
 warning lamp going off in the 
instrument panel or instrument panel screen. 
   
Operating fault 
 
In the event of a malfunction with the system, 
the  "AS &G O FF " 
 warning lamp flashes in the 
instrument panel or instrument panel screen, 
and the system no longer operates. 
  Have it checked by a CITROËN dealer or a 
qualified workshop.   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. 
   
Maintenance 
 
The "Auto Stop & Go" 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.  
   
In the event of a fault in STOP mode, the 
vehicle may stall. The following warning lamps 
come on in the instrument panel or instrument 
panel screen:  
   
It is then necessary to switch off the ignition, 
then restart the engine using the key or the 
START/STOP button.  
  
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4
Driving
   
As the engine torque is applied to all 
four wheels, the condition of the tyres 
has a considerable impact on the 
per formance of the vehicle. 
  Ensure that all four tyres are in good 
condition. 
  Avoid driving the vehicle in sandy or 
muddy areas or in other areas in which 
the wheels could spin. 
  Spinning the wheels places the 
transmission components under 
pressure and could cause a serious 
malfunction. 
  Do not drive the vehicle through deep 
water. 
  Avoid driving over excessively uneven 
terrain (risk of scraping under the body 
or of grounding on crossing a bridge).  
 
 
Operating faults 
 
If the selected transmission mode display 
flashes, the vehicle switches automatically to 
front  "2WD" 
 transmission mode. 
  It is then no longer possible to select the 
transmission mode using the control  A 
. 
  If the message "SLOW DOWN" is displayed on 
the instrument panel, let the transmission cool 
down then wait for the display to clear before 
setting off again. 
  If "4WD" and "LOCK" are displayed alternately 
and if "SERVICE REQUIRED" is displayed in 
the instrument panel, the system has failed and 
the safety system has been activated. 
  Contact a CITROËN dealer or a qualified 
workshop without delay.     
 
Have your vehicle towed on a 
flatbed. 
 
  The vehicle must not be towed with the 
front or rear wheels on the ground even 
if it is in front "2WD" (2 wheel drive) 
mode.  
  
 
If the replacement of a tyre is 
necessary on 4-wheel drive versions, 
it is recommended that all four tyres be 
replaced at the same time, ensuring 
that the same make, model and size is 
used on all wheels.  
This is because using tyres of different 
sizes, structure or rate of wear could 
damage transmission components.   
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Visibility
  In foggy weather or in snow, the 
sunshine sensor may detect sufficient 
light. The lighting will not come on 
automatically. 
  Do not cover the sunshine sensor, the 
associated functions will no longer be 
controlled.  
 
 
 
 
 
 
 
Automatic switching off 
 
When the lighting control stalk is at "dipped or 
main beam headlamps", if the ignition switch 
is at "LOCK" or "ACC" or if the key has been 
removed from the ignition switch, the lamps 
switch off automatically  when the driver's 
door is opened 
.  
 
 
 
 
 
 
 
Daytime running lamps 
 
Daytime lighting which comes on automatically 
when the engine is started making the vehicle 
more visible to other users. 
   
This function is assured by special lamps. 
  The lighting control stalk must be placed in 
position  "0" 
 or  "AUTO " 
 (day mode).  
 
 
 
 
 
 
 
 
Automatic illumination of headlamps 
 The sidelamps and the dipped beam headlamps 
come on automatically, without any action on the 
part of the driver, if a low level of exterior light is 
detected or if the wipers are switched on. 
  When the light returns to a sufficient level or the 
wipers are switched off, the lighting is switched off 
automatically. 
  The sensor is located at the base of the windscreen. 
 
Contact a CITROËN dealer or a qualified 
workshop to adjust the sensitivity of the sensor.  
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5
Visibility
   
Rear courtesy lamp 
 
 
Position 1 "ON" 
 
The courtesy lamp is permanently on.  
 
 
Position 2 "●" 
 
The courtesy lamp comes on when a door or 
the tailgate is opened. When the door or the 
tailgate is closed again, the lighting gradually 
dims for a few seconds before switching off. 
  However, the courtesy lamp is switched off 
immediately in the following cases: 
   
 
-   When the doors and the tailgate are closed 
and the ignition switch is placed in the 
  "ON" 
 position. 
   
-   When the doors and the tailgate are closed 
and you lock the vehicle.  
 
 
 
Position 3 "OFF" 
 
The courtesy lamp is permanently off.  
 
 
 
Courtesy lamps automatic 
switch off 
  With the engine off, the courtesy lamps, 
map reading lamps and boot lamp switch 
off automatically after 30 minutes to prevent 
discharging of the battery. 
  The courtesy lamps are switched on again if 
the ignition switch is placed in the  "ON" 
 
or  "ACC " 
 position, if you open then close a 
door or the tailgate or if you use the remote 
control.