Get Practical information -> AdBlue? and SCR system (BlueHDi Diesel) Guide for Citroen C5 Suv Second Generation (2008-2017)

Practical information

Particle filter system (Diesel)

Manual gearbox

Complementary to the catalytic converter,

this filter makes an active contribution to the

preservation of air quality by trapping unburnt

pollutant particles. Black exhaust fumes are

thus no longer emitted.

After prolonged idling or driving at very low

speeds, you may occasionally notice water

vapour being emitted from the exhaust when

accelerating. This is of no consequence to the

running of the vehicle or to the environment.

The gearbox does not require any

If there is risk of blockage, a message

appears in the instrument panel screen,

accompanied by an audible signal and

illumination of the service warning lamp.

This alert tells you that the particle filter

is approaching saturation (in conditions

of urban driving of exceptionally long

duration: low speeds, traffic jams etc.)

To regenerate the filter, it is advised to

drive as soon as possible, when traffic

conditions permit, at a speed of 40 mph

(around 60 km/h) or more for at least

five minutes (until the alert message

disappears).

maintenance (no oil change).

Refer to the manufacturer's service schedule

for the checking interval for this component.

Automatic gearbox

The gearbox does not require any

maintenance (no oil change).

If this alert persists, contact a CITROËN

dealer or a qualified workshop.

Refer to the manufacturer's service schedule

for the checking interval for this component.

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193

Practical information

Brake pads

Manual parking brake

Brake wear depends on the style

Only use products recommended by

CITROËN or products of equivalent

quality and specification.

In order to optimise the operation of

units as important as those in the

braking system, CITROËN selects and

offers very specific products.

After washing the vehicle, dampness,

or in wintry conditions, ice can form

on the brake discs and pads: braking

efficiency may be reduced. Make light

brake applications to dry and defrost

the brakes.

of driving, particularly in the case

of vehicles used in town, over short

distances. It may be necessary to have

the condition of the brakes checked,

even between vehicle services.

If a loss of effectiveness of this

system is noticed, the parking

brake must be checked, even

between two services.

Checking this system must be done by a

CITROËN dealer or a qualified workshop.

Unless there is a leak in the circuit, a drop in

the brake fluid level indicates that the brake

pads are worn.

Brake disc wear

Electric parking brake

For information on checking brake

disc wear, contact a CITROËN dealer

or a qualified workshop.

This system does not require any

routine servicing. However, in the

event of a problem, have the system

checked by a CITROËN dealer or a

qualified workshop.

For more information on the

Electric parking brake, refer to the

corresponding section.

194

Practical information

AdBlue^®and SCR system

for BlueHDi Diesel engines

To assure respect for the environment and

conformity with the new Euro 6 emissions

standard, without adversely affecting the

performance or fuel consumption of Diesel

engines, CITROËN has taken the decision to

equip its vehicles with an effective system that

associates SCR (Selective Catalytic Reduction)

with a particle filter (FAP) for the treatment of

exhaust gases.

The AdBlue^®is held in a special tank with

Once the AdBlue^®tank is empty, a

system required by regulations prevents

starting of the engine.

If the SCR system is faulty, the level

of emissions from your vehicle will no

longer meet the Euro 6 standard: your

vehicle becomes polluting.

In the event of a confirmed fault

with the SCR system, you must go

to a CITROËN dealer or a qualified

workshop as soon as possible: after

a running distance of 650 miles

(1 100 km), a system will be triggered

automatically to prevent engine starting.

In either case, a range indicator gives

you the distance you can travel before

the vehicle is immobilised.

a capacity of about 17 litres: this provides

a driving range of about 12 500 miles

(20 000 km). An alert is triggered automatically

to warn you when the reserve level is

reached: you can then drive about 1 500 miles

(2 400 km) before the tank is empty.

During each scheduled service of your vehicle

by a CITROËN dealer or a qualified workshop,

the AdBlue^®tank is refilled in order to allow

normal operation of the SCR system.

SCR system

Using a fluid called AdBlue^®containing urea, a

catalytic converter turns up to 85% of nitrogen

oxides (NOx) into nitrogen and water, which are

harmless to health and the environment.

If the estimated mileage of your vehicle

between two services is greater than

12 500 miles (20 000 km), it will be necessary

to top-up the AdBlue^®.

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195

Practical information

AdBlue^®fluid range indicators

Once the AdBlue^®tank is on reserve or after

detection of a fault with the SCR emissions

control system, when the ignition is switched

on, an indicator displays an estimate of the

distance that can be covered, the range, before

engine starting is prevented.

In the event of the risk of non-starting related to a lack of AdBlue^®

The engine start prevention system

required by regulations is activated

automatically once the AdBlue^®tank is

empty.

In the event of simultaneous system fault and

low AdBlue^®level, the shortest range figure is

the one displayed.

Range greater than 1 500 miles (2 400 km)

When the ignition is switched on, no

information on range is displayed automatically

in the instrument panel.

Pressing this button displays the driving range

temporarily.

Above 3 000 miles (5 000 km), the value is not

specified.

196

Practical information

Remaining range between 350 and 1500 miles (600 and 2 400 km)

Remaining range between 0 and 350 miles (0 and 600 km)

Breakdown related to a lack of AdBlue^®

When switching on the ignition, this warning

lamp comes on, accompanied by an audible

signal and the display of a message

(e.g. "Top-up emissions additive: Starting

prevented in 900 miles") indicating the

remaining range expressed in miles or

kilometres.

When switching on the ignition, this warning

lamp flashes, accompanied by an audible

signal and the display of a message

(e.g. "Top-up emissions additive: Starting

prevented in 350 miles") indicating the

remaining range expressed in miles or

kilometres.

When switching on the ignition, this warning

lamp flashes, accompanied by an audible

signal and the display of the message "Top-up

emissions additive: Starting prevented".

The AdBlue^®tank is empty: the system required

by regulations prevents engine starting.

When driving, the message is displayed every

200 miles (300 km) until the fluid has been

topped-up.

Go to a CITROËN dealer or a qualified

workshop to have the AdBlue^®topped-up.

You can also top-up the tank yourself.

For more information on AdBlue^®and the SCR

system, and in particular on topping-up the

AdBlue^®, refer to the corresponding section.

When driving, the message is displayed every

30 seconds until the fluid has been topped-up.

Go to a CITROËN dealer or a qualified

workshop to have the AdBlue^®topped-up.

You can also top-up the tank yourself.

Otherwise you will not be able to restart your

engine.

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To be able to start the engine,

we recommend that you call on

a CITROËN dealer or a qualified

workshop for the top-up required.

If you carry out the top-up yourself, it

is essential to add at least 3.8 litres of

AdBlue^®to the tank.

For more information on AdBlue^®and the SCR

system, and in particular on topping-up the

AdBlue^®, refer to the corresponding section.

197

Practical information

In the event of a fault with the SCR emissions control system

In the event of the detection of a fault

During an authorised driving phase (between

650 miles and 0 miles) (1 100 km and 0 km)

A system that prevents engine starting

is activated automatically from

650 miles (1 100 km) after confirmation

of a fault with the SCR emissions

control system. Have the system

checked by a CITROËN dealer or a

qualified workshop as soon as possible.

These warning lamps come on, accompanied

by an audible signal and the display of the

message "Emissions fault".

The alert is triggered when driving when the

fault is detected for the first time, then when

switching on the ignition for subsequent

journeys, while the fault persists.

If a fault with the SCR system is confirmed

(after 30 miles (50 km) covered with the

permanent display of the message signalling

a fault), these warning lamps come on,

accompanied by an audible signal and the

display of a message (e.g.: "Emissions fault:

Starting prevented in 150 miles") indicating

the remaining range expressed in miles or

kilometres.

While driving, the message is displayed every

30 seconds while the fault with the SCR system

persists.

The alert is repeated when switching on the

ignition.

You should go to a CITROËN dealer or a

qualified workshop as soon as possible.

Otherwise, you will not be able to restart your

engine.

If it is a temporary fault, the alert

disappears during the next journey,

after self-diagnosis of the SCR system.

198

Practical information

Starting prevented

Freezing of the AdBlue^®

AdBlue^®freezes at temperatures below

around -11°C.

The SCR system includes a heater

for the AdBlue^®tank, allowing you

to continue driving in all weather

conditions.

Every time the ignition is switched on, these

warning lamps come on, accompanied by an

audible signal and the display of the message

"Emissions fault: Starting prevented".

You have exceeded the authorised

driving limit: the starting prevention

system inhibits engine starting.

7

To be able to start the engine, you must call on

a CITROËN dealer or a qualified workshop.

199

Practical information

Topping-up the AdBlue^®

Filling the AdBlue^®tank is an operation

included in every routine service on your

vehicle by a CITROËN dealer or a qualified

workshop.

Nevertheless, given the capacity of the tank, it

may be necessary to top-up the fluid between

services, more particularly if an alert (warning

lamps and a message) signals the requirement.

You can go to a CITROËN dealer or a qualified

workshop.

Precautions in use

AdBlue^®is a urea-based solution. This liquid is

non-flammable, colourless and odourless (kept

in a cool area).

Use only AdBlue^®fluid that meets the

ISO 22241 standard.

Never dilute AdBlue^®with water.

Never pour AdBlue^®into the Diesel fuel

tank.

In the event of contact with the skin, wash

the affected area with soap and water. In the

event of contact with the eyes, wash (irrigate)

the eyes with large amounts of water or with

an eye wash solution for at least 15 minutes.

If a burning sensation or irritation persists, get

medical attention.

If swallowed, immediately wash out the mouth

with clean water and then drink plenty of water.

In certain conditions (high temperature, for

example), the risk of release of ammonia

cannot be excluded: do not inhale the fluid.

Ammonia vapour has an irritant effect on

mucous membranes (eyes, nose and throat).

If you envisage topping-up yourself, please

read the following warnings carefully.

The supply in a non-drip container or bottle

simplifies topping-up. You can obtain 1.89 litre

(half a US gallon) bottles or 5 litre containers

from a CITROËN dealer or a qualified

workshop.

Keep AdBlue^®out of the reach of

children, in its original container or

bottle.

Never transfer AdBlue^®to another

container: it would lose its purity.

Never top-up from an AdBlue^®

dispenser reserved for heavy goods

vehicles.

200

Practical information -> AdBlue? and SCR system (BlueHDi Diesel) for Your Citroen C5 Suv Second Generation (2008-2017)

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