Citroen C4: Indicators

• Service indicator
• Engine oil level indicator
• AdBlue range indicators (BlueHDi)
• Power indicator (Hybrid or Electric)
• Charge level indicator (Electric)
• Thermal comfort consumption indicator (Electric)

Service indicator

The servicing information is expressed in terms of distance (miles or kilometres) and/or time (months or days).

The alert is given at whichever of these two terms is reached first.

The servicing information is displayed in the instrument panel. Depending on the version of the vehicle:

- The distance recorder display line indicates the distance remaining before the next service is due, or the distance travelled since it was due preceded by the "-" sign.

- An alert message indicates the distance remaining, as well as the period before the next service is due or how long it is overdue.

The value indicated is calculated according to the distance covered and the time elapsed since the last service.

The alert may also be triggered close to a due date.

In accordance with the vehicle's maintenance plan, the service may consist of either:

- A yearly visit.

- A complete service.

Service spanner

On temporarily when the ignition is switched on.

Between 1,860 and 620 miles (3,000 and 1,000 km) or 60 and 21 days remain before the next service is due.

Fixed, when the ignition is switched on.

The next service is due in less than 620 miles (1,000 km) or 21 days.

Have your vehicle serviced very soon.

Service spanner flashing

Flashing then fixed, when the ignition is switched on.

(With BlueHDi Diesel engines, associated with the Service warning lamp.) The servicing interval has been exceeded.

Have your vehicle serviced as soon as possible.

Resetting the service indicator

The service indicator must be reset after each service.

If you have serviced your vehicle yourself:

► Switch the ignition off.

► Press and hold the button located on the end of the lighting control stalk.

► Switch on the ignition without starting the engine; a temporary display window appears and a countdown begins.

► When the display indicates =0, release the lighting control stalk button; the spanner symbol disappears.

If you disconnect the battery following this operation, lock the vehicle and wait at least 5 minutes for the reset to be registered.

Reminder of the servicing information

 With Touch screen BLUETOOTH audio system or MyCitroën Play

Servicing information is accessible by pressing the "Check" button in the Driving touch screen menu.

 With MyCitroën Drive Plus

Servicing information is accessible using the Settings > Vehicle application on the touch screen.

► Then select Safety > Diagnostics.

Engine oil level indicator

(Depending on version)

On versions fitted with an electric gauge, the engine oil level status is displayed on the instrument panel for a few seconds when the ignition is switched on, after the servicing information.

The level read will only be correct if the vehicle is on level ground and the engine has been off for more than 30 minutes.

Oil level correct

This is indicated by the display of "OIL OK" or by the message "Oil level correct" (depending on the instrument panel).

Low oil level

This is indicated by the display of "OIL" or by the message "Oil level incorrect" (depending on the instrument panel), accompanied by the lighting of the Service warning lamp and an audible signal.

If a low oil level is confirmed by a check using the dipstick, the level must be topped up to avoid damage to the engine.

For more information on Checking levels, refer to the corresponding section.

Oil gauge malfunction

This is indicated by the display of "OIL_ _" or by the message "Oil level measurement invalid" (depending on the instrument panel), accompanied by the lighting of the Service warning lamp and an audible signal.

Consult a CITROËN dealer or a qualified workshop.

In the event of a malfunction of the electric gauge, the oil level is no longer monitored.

If the system is faulty, you must check the engine oil level using the manual dipstick located in the engine compartment.

For more information on Checking levels, refer to the corresponding section.

Coolant temperature indicator

Depending on the type of instrument panel, this information is only available in the instrument panel's personalisable area.

With the engine running:

- In zone A, the temperature is correct.

- In zone B, the temperature is too high. The associated warning lamp and the STOP warning lamp light up in red on the instrument panel, accompanied by the display of a message and an audible signal.

You must stop the vehicle as soon as it is safe to do so.

Wait a few minutes before switching off the engine.

After switching off the ignition, carefully open the bonnet and check the coolant level.

For more information on Checking levels, refer to the corresponding section.

AdBlue range indicators (BlueHDi)

The Diesel BlueHDi engines are equipped with a system that associates the SCR (Selective Catalytic Reduction) emissions control system and the Diesel particle filter (DPF) for the treatment of exhaust gases. They cannot function without AdBlue fluid.

When the level of AdBlue falls below the reserve level (between 1,500 and 0 miles (2,400 and 0 km) ), a warning lamp lights up when the ignition is switched on and an estimate of the distance that can be travelled before engine starting is prevented is displayed in the instrument panel.

The engine starting prevention system required by regulations is activated automatically once the AdBlue tank is empty. It is then no longer possible to start the engine until the minimum level of AdBlue has been topped up.

Manual display of driving range

While the driving range is greater than 1,500 miles (2,400 km), it is not displayed automatically.

 With Touch screen BLUETOOTH audio system or MyCitroën Play

Driving range information is accessible by pressing the "Check" button in the Driving touch screen menu.

 With MyCitroën Drive Plus

Driving range information is accessible using the Settings > Vehicle application on the touch screen.

► Then select Safety > Diagnostics.

Actions required related to a lack of AdBlue

The following warning lamps light up when the quantity of AdBlue is below the reserve level: driving range of 1,500 miles (2,400 km).

Together with the warning lamps, messages regularly remind you of the need to top up to avoid engine starting being prevented. Refer to the Warning and indicator lamps section for details of the messages displayed.

For more information on AdBlue (BlueHDi) and in particular on topping up, refer to the corresponding section.

Taking into account of top-up

Top-up detection may not be instantaneous after addition. It may take a few minutes of driving before the top-up detection is effective.

Malfunction of the SCR emissions control system

 Malfunction detection

The alert is triggered while driving when the fault is detected for the first time, and thereafter when switching on the ignition for subsequent journeys, for as long as the cause of the fault persists.

If the fault is temporary, the alert disappears during the next journey, after self-diagnostic checks of the SCR emissions control system.

 Malfunction confirmed during the permitted driving phase (between 685 miles and 0 miles (1,100 km and 0 km) )

If the fault indication is still displayed permanently after 31 miles (50 km) of driving, the fault in the SCR system is confirmed.

The AdBlue warning lamp flashes and a message is displayed ("Emissions control fault: starting prevented in X miles (kms)"), indicating the driving range in miles or kilometres.

While driving, the message is displayed every 30 seconds. The alert is repeated when switching on the ignition.

You can continue driving for up to 685 miles (1,100 km) before the engine starting prevention system is triggered.

Have it checked by a CITROËN dealer or a qualified workshop.

Starting prevented

Every time the ignition is switched on, the message "Emissions control fault: Starting prevented" is displayed.

To restart the engine

Contact a CITROËN dealer or a qualified workshop.

Power indicator (Hybrid or Electric)

The power indicator shows in real time the power demanded from the vehicle.

There are 3 zones:

For hybrid versions

POWER High power demand, using the combined capabilities of the petrol engine and the electric motor.

The slider is located in this zone during more dynamic driving phases when high levels of performance are being demanded.

ECO Optimal use of energy (internal combustion or electric).

The slider is located in this zone when driving under electric power and when optimal use is being made of the petrol engine, both accessible by adopting a suitable driving style.

CHARGE Energy recovery for recharging the traction battery.

The slider is located in this zone during deceleration: taking your foot off the accelerator pedal or braking.

When the ignition is switched on and before the engine is started, the power indicator only displays "OFF".

For electric versions

CHARGE Traction battery charging during deceleration and braking.

ECO Moderate energy consumption and optimised driving range.

POWER Energy consumption by the drive train during acceleration.

Charge level indicator (Electric)

The traction battery's actual charge level and the remaining range are displayed continuously when the vehicle is started.

With the ignition off, opening the driver's door activates the indicator.

Associated warning lamps

Two successive alert levels indicate that the energy available has dropped to a low level: 1st level: Reserve

The state of charge of the traction battery is low.

Fixed, accompanied by an audible signal.

► View the remaining range on the instrument panel.

► Put the vehicle on charge as soon as possible.

2nd level: Critical

The state of charge of the traction battery is critical.

Fixed, together with the reserve warning lamp, accompanied by an audible signal.

► You must put the vehicle on charge.

The remaining range is no longer calculated. The drive train power gradually decreases.

The heating and air conditioning are switched off (even if the thermal comfort consumption indicator is not at the "ECO" level).

Flow indicator (Electric)

The flow indicator displays the energy flows in the vehicle in real time.

With MyCitroën Play

It is available in the "Personal 1"/"Personal 2" display modes of the instrument panel.

With MyCitroën Drive Plus

The indicator changes colour depending on how energy from the traction battery is being used:

- Blue: energy consumption.

- Green: energy recovery.

This indicator does not represent the battery's actual level of charge.

Thermal comfort consumption indicator (Electric)

(Depending on version)

It is available in the display pages of the instrument panel.

The gauge shows the consumption of the traction battery's electrical energy by the thermal comfort devices in the passenger compartment.

The devices in question are the heating and air conditioning systems.

This equipment can be used:

- If the vehicle is not plugged in, when the READY lamp is lit.

- If the vehicle is plugged in, when the ignition is switched on ("Lounge" mode).

Selecting ECO mode limits the performance of some of this equipment. The thermal comfort consumption indicator then moves into the "ECO" zone.

To quickly heat or cool the passenger compartment, feel free to temporarily select the maximum heating or cooling setting.

When the heating is on maximum, the gauge on the thermal comfort consumption indicator is in the MAX zone. When the air conditioning is on maximum, it stays in the ECO zone.

Excessive use of thermal comfort equipment, particularly at low speed, can significantly decrease the vehicle's range.

Remember to optimise equipment settings upon achieving the desired level of comfort, and adjust them if necessary whenever you start the vehicle.

After an extended period without using the heating, you may notice a slight odour during the first few minutes of use.