Moin, I thought this morning, why do you still use AGR in diesel engines today? Sure, as an intermediate stage, where you didn’t have any corresponding catalysts with urea injection, AGR was a suitable way to lower the combustion temperature and thus the production of NOx. The associated problems are well known. So why not just leave out and make the whole with a possibly larger SCR Kat and an adapted urea quantity com Do you have any opinions or scientific articles? Thank you. LG Micha