Nitrogen oxides (NOx) contribute to the formation of smog and acid rain as well as exacerbating the greenhouse effect. In order to reduce emissions, AUS 32 (a 32.5% urea solution) is used. AUS 32 is aqueous, clear, nontoxic, safe
to handle, and doesn’t present a risk to people or the environment. AUS 2 is sold at service stations or by accessory
suppliers under the following trademarks: AdBlue in Europe, DEF in North America, and ARLA 32 in Brazil.
Its consumption is around 5% of a vehicle’s fuel consumption. By using AUS 32, it’s possible to comply with the increasingly stringent Euro 6 and Tier 2 Bin 5 statutory limits and beyond. This method of exhaust gas purification is technically complex and transforms the nitrogen oxides into harmless nitrogen (N2) and water (H2O) by means of selective catalytic reduction (SCR).
The Problem Of Contamination - The Solution From Mahle
More and more manufacturers are using SCR systems, and the demand for urea solution is rising. Increasingly complex storage and transport processes are inevitably raising the risk of contamination, with the danger that sensitive components (injection nozzles, catalytic converters, other system components) become dirty, wear out, or break down completely.
In order to prevent this, MAHLE Aftermarket offers urea filters in proven original equipment quality. Their fine-pored
filter media guarantee the proper, long-term operation of SCR systems.
