Get Practical Information -> AdBlue? additive and SCR system for BlueHDi Diesel engines Guide for Citroen Ds3 SUV Second Generation (2018-2025)

AdBlue^®additive 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^®additive is held in a special

Once the AdBlue^®tank is empty,

a system required by regulations

prevents starting of the engine.

If the SCR is faulty, the level of

emissions from your vehicle will no

longer meet the Euro 6 standard: you

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.

tank located under the boot at the rear of

the vehicle. It has a capacity of 17 litres: this

provides a driving range of about 12 500 miles

(20 000 km), after which an alert is triggered

warning you when the reserve remaining is

enough for just 1 500 miles (2 400 km).

During each scheduled service of your vehicle

by a CITROËN dealer or a qualified workshop,

the AdBlue^®additive tank is refilled in order to

allow normal operation of the SCR system.

Presentation of the SCR system

Using an additive called AdBlue^®containing

urea, a catalytic converter turns up to

85% of nitrous oxides (NOx) into nitrogen

and water, which are harmless to health and

the environment.

If the estimated mileage between two services

is greater than 12 500 miles (20 000 km), we

recommend that you go to a CITROËN dealer

or a qualified workshop to have the necessary

top-up carried out.

189

Practical information

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^®

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

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.

When switching on the ignition, the

UREA 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 driving, the message is displayed every

200 miles (300 km) until the additive tank has

been topped-up.

Go to a CITROËN dealer or a qualified

workshop to have the AdBlue^®tank topped-up.

You can also top-up the tank yourself.

Refer to the "Topping-up" section.

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.

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

Breakdown related to a lack of AdBlue^®additive

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.

When switching on the ignition, the SERVICE

warning lamp comes on and the UREA 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, the SERVICE

warning lamp comes on and the UREA 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.

Refer to the "Topping-up" section.

When driving, the message is displayed every

30 seconds until the additive tank has been

topped-up.

Go to a CITROËN dealer or a qualified

workshop to have the AdBlue^®tank topped-up.

You can also top-up the tank yourself.

Refer to the "Topping-up" section.

Otherwise you will not be able to restart your

engine.

191

Practical information

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

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.

In the event of the detection of a fault

during an authorised driving phase (between

Starting prevented

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

Every time the ignition is switched on, the SERVICE

and engine diagnostic warning lamps come on and

the UREA warning lamp flashes, accompanied by

an audible signal and the display of the message

"Emissions fault: Starting prevented".

The UREA, SERVICE and diagnostic warning

lamps comes 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), the

SERVICE and engine diagnostic warning lamps

come on and the UREA warning lamp flashes,

accompanied by an audible signal and the

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

Starting prevented in 150 miles") indicating the

remaining range express 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.

You have exceeded the authorised

driving limit: the starting prevention

system inhibits engine starting.

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

a CITROËN dealer or a qualified workshop.

If it is a temporary fault, the alert

disappears during the next journey,

after self-diagnosis of the SCR system.

Topping-up the AdBlue^®additive

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 additive

between services, more particularly if an alert

(warning lamps and a message) signals the

requirement.

You can got to a CITROËN dealer or a qualified

workshop.

If you envisage topping-up yourself, please

read the following warnings carefully.

Precautions in use

The AdBlue^®additive is an urea-based

solution. This liquid is non-flammable,

colourless and odourless (kept in a cool area).

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.

Use only AdBlue^®additive that meets the

ISO 22241 standard.

Never dilute the additive with water.

Never pour the additive into the Diesel

fuel tank.

If swallowed, immediately wash out the mouth

with clean water and then drink plenty of water.

In certain conditions (high ambient

temperature, for example), the risk of release

of ammonia cannot be excluded: do not inhale

the product. Ammonia vapour has en irritant

effect on mucous membranes (eyes, nose and

throat).

The supply in a non-drip bottle simplifies

toping-up. You can obtain 1.89 litre (half a US

gallon) bottles from a CITROËN dealer or a

qualified workshop.

Freezing of the AdBlue^®additive

The AdBlue^®additive freezes at

temperatures below around -11°C.

The SCR system includes a heater

for the AdBlue^®tank, allowing you to

continue driving in very cold conditions.

Keep AdBlue^®out of the reach of

children, in its original bottle.

Never transfer AdBlue^®to another

container: it would lose its purity.

Never top-up from an AdBlue^®

dispenser reserved for heavy goods

vehicles.

Practical Information -> AdBlue? additive and SCR system for BlueHDi Diesel engines for Your Citroen Ds3 SUV Second Generation (2018-2025)

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