CITROEN C4 Specifications download pdf (Page 168)

166

Practical information

E3_en_Chap09_info_pratiques_ed01-2014

AdBlue

®

additive and SCR system

for Blue HDi 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 emissions filter (PEF) for the

treatment of exhaust gases.

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.

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.

The AdBlue

®

additive is held in a special

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.

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.

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