Due to stricter emission requirements, almost all newer machines are equipped with a so-called SCR system in the catalytic converter. What this system does is convert nitrogen oxide into water and nitrogen, making the exhaust gases much less bad for the environment. The well-known Ad-Blue is injected into the catalytic converter which causes this process to take place. Ad-Blue is actually nothing more than about 2/3 water and 1/3 urea. Hence, the ad-blue filter is often called urea filter. Replacing the ad-blue or urea filter on time prevents the injection from clogging up and damaging your SCR system and catalyst.
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-41%HengstE100U D160
-41%HengstE101U D324
-41%HengstE103U D295
-28%HengstE105U
-58%Fil FilterMUE1592
-58%Fil FilterMUE1591
-34%Mann HummelU 5001 Kit
-46%Mann HummelU 620/2 y KIT
-19%Mann HummelU 58/1 Kit
Mann HummelU 58/9 KITUREA FILTER
-24%Mann HummelU 620/3 y KIT
-43%Mann HummelU 630 x KIT
-24%Mann HummelU 1005/0.jpg)
-21%Mann HummelU 1003 (10)
-29%Mann HummelU 620/4 y KIT/1.jpg)
-24%Mann HummelU 1002 (10)