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3Practical information
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 per formance 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, ® 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.
The AdBlue ® additive is held in a special ® 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 ® 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 dealer to have the necessary top-up carried out.
Once the AdBlue ® tank is empty, ® 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 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.
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Topping-up the AdBlue ® Topping-up the AdBlue ® Topping-up the AdBlue additive ® additive ®
Filling the AdBlue ® tank is an operation ® 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 ® 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. 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).
Keep AdBlue ® out of the reach of ® out of the reach of ®
children, in its original bottle. Never transfer AdBlue ® to another ® to another ®
container: it would loose its purity.
Use only AdBlue ® additive that meets the ® additive that meets the ®
ISO 22241 standard.
Never dilute the additive with water. Never pour the additive into the Diesel fuel tank.
Never top-up from an AdBlue ®
dispenser reserved for heavy goods vehicles.
The supply in non-drip bottles simplifies toping-up. You can obtain 1.89 litre (half US gallon) bottles from a CITROËN dealer or a qualified workshop.
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12Checks
1.6 Blue HDi engine
Fill the fuel tank with at least five litres of Diesel. Switch on the ignition (without starting the engine). Wait around 6 seconds and switch off
the ignition. Repeat the operation 10 times. Operate the starter to run the engine.
Running out of fuel (Diesel)
On vehicle fitted with HDi engines, the fuel system must be primed if you run out of fuel; refer to the corresponding engine compartment view.
If the engine does not start first time, don't keep trying. Start the procedure again from the beginning.
