2015 Citroen C4 battery

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Following disconnection of the vehicle battery, replacement of the remote control battery or in the event of a remote control malfunction, you can no longer unlock, lock or locate your vehicle.
Remember to refit the mat below the armrest after removing the reinitialised electronic key.
Remote control problem /
reinitialisation
 Place the back-up key (integral with the remote control) in the lock to unlock your vehicle.
 Open the front armrest. ● Raise the mat by its tongue and remove it. ● Place the electronic key on the back-up reader.  Switch on the ignition by pressing
the " START/STOP " button. The electronic key is fully operational again.
If the problem persists, contact a CITROËN dealer or a qualified workshop as soon as possible.

Driving
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Stop & Start
Operation
Going into engine STOP mode
The "ECO" warning lamp comes on in the instrument panel and the engine goes into standby automatically:
- with a manual gearbox , at speeds below 12 mph (20 km/h), or vehicle stationary with PureTech 130 petrol and BlueHDi 115 and 120 Diesel versions, when you put the gear lever into neutral and release the clutch pedal, - with an electronic gearbox , at a speed below 5 mph (8 km/h), when you press the brake pedal or place the gear lever in position N . - with an automatic gearbox, vehicle stationary, when you press the brake pedal or place the gear lever in position N .
If your vehicle is fitted with the system, a time counter calculates the sum of the periods in STOP
Special cases: STOP mode unavailable
STOP mode is not invoked when: - the vehicle is on a steep slope (up or down), - the driver's door is open, - the driver's seat belt is not fastened, - the vehicle has not exceeded 6 mph (10 km/h) since the last engine start (using the key or the "START/STOP" button), - the electric parking brake is applied or being applied, - 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.
In this case, the "ECO" warning lamp flashes for a few seconds, then goes of f. This operation is perfectly normal.
The Stop & Start system puts the engine temporarily into standby - STOP mode - during stops in the traffic (red lights, traffic jams, or other...). The engine restarts automatically - START mode - as soon as you want to move off. The restart takes place instantly, quickly and silently. Per fect for urban use, the Stop & Start system reduces fuel consumption and exhaust emissions as well as the noise level when stationary.
STOP mode does not affect the functionality of the vehicle, such as braking, power steering, for example. Never refuel with the engine in STOP mode; you must switch off the ignition
with the key or the "START/STOP" button.
With an electronic gearbox, for your comfort during parking manoeuvres, STOP mode is not available for a few seconds after coming out of reverse g e a r.
mode during a journey. It resets itself to zero every time the ignition is switched on with the key or the "START/STOP" button.

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Going into engine START mode Special cases: START invoked automatically
The "ECO" warning lamp goes off and the engine starts automatically:
- with a manual gearbox , when you fully
depress the clutch pedal, - with an electronic gearbox : ● gear lever in position A or M , when you release the brake pedal, ● or gear lever in position N and the brake pedal released, when you place the gear lever in position A or M , ● or when you engage reverse gear. - with an automatic gearbox: ● gear lever in position D or M , when you release the brake pedal, ● or gear lever in position N and brake pedal released, when you place the gear lever in position D or M , ● or when you engage reverse gear.
For safety reasons or to ensure smooth operation, START mode is invoked automatically when: - you open the driver's door,
- you unfasten the driver's seat belt, - the speed of the vehicle exceeds 15 mph (25 km/h) with a manual gearbox (3 km/h (2 mph) with PureTech 130 petrol and BlueHDi Diesel 115 and 120 versions), 7 mph (11 km/h) with an electronic gearbox or 2 mph (3 km/h) with an automatic gearbox, - the electric parking brake is being applied, - some special conditions (battery charge, engine temperature, braking assistance, ambient temperature...) where the engine is needed to assure control of a system.
In this case the "ECO" warning lamp flashes for few seconds, then goes of f.
This operation is perfectly normal.
With a manual gearbox in STOP mode, if a gear is engaged without fully depressing the clutch pedal, a warning lamp comes on or an alert message is displayed asking you to depress the clutch pedal to restart the engine.

Driving
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Maintenance
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.
Operating fault
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.
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 & Start 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. All of the instrument panel warning lamps come on. Depending on version, an alert message may also be displayed asking you to put the gear lever into position Nand put your foot on the brake pedal.
It is then necessary to switch off the ignition, then restart the engine using the key or the "START/STOP" button.
Reactivation
The system is reactivated automatically at every new start using the key or the "START/STOP" button.
Press the "ECO OFF" switch again. The system is active again; this is confirmed by the switch warning lamp going off and the display of a message.
Deactivation
At any time, press the "ECO OFF" switch to deactivate the system. This is confirmed by the switch warning lamp coming on accompanied by the display of a message.
If the system has been deactivated in STOP mode, the engine restarts immediately.

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Audio and Telematics 19
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Localised Assistance Call
If you purchased your vehicle outside the CITROËN dealer network, we invite you to have a dealer check the configuration of these services and, if desired, modified to suit your wishes. In a multi-lingual country, configuration is possible in the official national language of your choice.
For technical reasons, particularly to improve the quality of Telematic services to customers, the manufacturer reserves the right to carry out updates
to the vehicle's on-board telematic system.
Press this button for more than 2 seconds to request assistance if the vehicle breaks down. A voice message confirms that the call has been started * .
Pressing this button again immediately cancels the request. The cancellation is confirmed by a voice message.
Operation of the system
When the ignition is switched on, the green LED comes on for 3 seconds indicating that the system is operating correctly.
If the orange LED is on continuously: the backup battery must be replaced. In either case, contact a CITROËN dealer.
If the orange LED flashes: there is a system fault.

Audio and Telematics
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QUESTIONANSWERSOLUTION
There is a difference in sound quality between the different audio sources.
For optimum sound quality, the audio settings for Volume, Bass, Treble, Equalizer and Loudness can be adapted to the different sound sources, which may result in audible differences when changing source.
Check that the audio settings for (Volume, Bass, Treble, Equalizer, Loudness) are adapted to the sources listened to. It is advisable to set the Audio functions (Bass, Treble, Fr-Re balance, Le-Ri balance) to the middle position, select the "Linear", musical ambience and set the loudness correction to the "Active" position in CD mode or to the "Inactive" position in radio mode.
With the engine off, the system switches off after a few minutes of use.
When the engine is switched off, the system's operating time depends on the state of charge of the battery. The switch-off is normal: the system switches to economy mode and switches off to prevent discharging of the vehicle's battery.
Start the vehicle's engine to increase the battery charge.