How does the system work?
AdBlue® is a synthetic urea based solution, which is stored in a separate tank and injected directly into a specially modified part of the vehicle’s exhaust system. This begins a chemical reaction which removes the polluting nitrogen oxides (NOx), converting them into harmless water and nitrogen in a process known as Selective Catalytic Reduction (SCR)
SCR is only applicable to diesel engines. The frequency of tops up may vary due to the size of the AdBlue® tank fitted to your car, journey mileage, journey type and driving style. A passenger car can consume approximately 1 litre of AdBlue® every 500 miles.
How will I know if the system needs topping-up?
A series of warnings will be given, accompanied by advice/messages via the driver information system.
If these warnings are not acted upon the car will not restart once the ignition is turned off. The system will need a full top-up before the car can be restarted. This is not a fault, but a required feature of the system.
Further information is available in our section What is AdBlue®? You will also find more information in your vehicle handbook, alternatively if you would like more information about the regulations - Please visit www.euro6diesel.com.