Adblue now used in new Diesel cars
Diesel engines are now required to meet tough NOx standards to help control air pollution. The preferred method involves injecting a high purity fluid called Diesel Exhaust Fluid (AdBlue) into the exhaust system.
AdBlue is used by modern diesel engines which use Selective Catalytic Reduction (SCR) to control NOx emissions. SCR is the leading technology in emission regulations. It has been successfully used in Europe for several years and can now be seen as standard on the following – VW, BMW, Mecedes Benz, Opel, Ford, Toyota and Peugeot.
To help protect our environment, some TDI car models are now fitted with AdBlue® emissions control equipment which cleans exhaust gases helping cars to comply with the new EU6 exhaust emissions regulations.
AdBlue® is a non-toxic, non-flammable; biodegradable urea and water-based liquid additive that processes the gases in a car exhaust system to remove harmful nitrogen oxide (NOx) emissions.
The AdBlue® solution is stored in a tank positioned near the car’s conventional fuel tank, accessed through a cap usually found at the rear of the car; its location will depend on the model. The System works by injecting minute amounts of the solution into the exhaust system when the engine is running. The chemicals in AdBlue® break down the polluting NOx emissions into harmless water vapour and nitrogen gas.
The size of the AdBlue® tank fitted to your car will vary depending on which model you have, therefore the interval between top ups will vary. In addition many factors such as mileage covered, journey types, driving styles and environmental conditions can influence how much AdBlue® is consumed. A passenger car with an EU6 engine will consume approximately 1.5 litres of AdBlue® every 620 miles.
AdBlue® belongs to the lowest water pollution hazard category but is a skin irritant and a corrosive liquid that can cause injury if it touches the skin, eyes or respiratory organs. (see further advice below)
How AdBlue® helps cut emissions
Reduced raw exhaust emissions are achieved in TDI engines equipped with AdBlue® through a modified fuel injection system, exhaust gas recirculation and optimised turbocharging.
The AdBlue® solution is stored separately from the fuel tank and is pumped in small quantities into the exhaust pipe ahead of the DeNOx catalyst when the engine is running.
AdBlue® needs to be handled with care
If handling AdBlue®, wear suitable protective clothing such as rubber gloves and glasses.
If AdBlue® comes into contact with eyes and skin, rinse for at least 15 minutes with plenty of water and seek medical help. If AdBlue® is swallowed; wash the mouth with plenty of water for at least 15 minutes. Do not try to induce vomiting unless recommended by a doctor. Seek medical advice immediately.
AdBlue® damages surfaces such as painted vehicle parts, plastic, items of clothing and carpets.
Spilt AdBlue® should be removed as quickly as possible using a damp cloth and plenty of cold water.
If the mixture is spilt, wash the area immediately as it can be slippery and may cause structural or staining problems with brick or concrete surfaces.
To avoid contamination, do not reuse AdBlue® which has previously been drained off.
Only fill the AdBlue® tank using the Volkswagen approved tools and containers.
Keep all refilling equipment free of dirt and dust.
Avoid mixing AdBlue® with diesel fuel, and do not use it if it is contaminated with water or fuel of any kind.