How a DPF differs from a catalyst, why regeneration fails and how the three-module MS900 stand cleans filters without chemicals.
A catalytic converter transforms harmful gases, while a diesel particulate filter (DPF) traps soot from incomplete combustion, which is why it needs regular cleaning. Regeneration works either by raising exhaust temperature to 600–800°C or by using a special additive.
MSG Equipment explains that a low fuel level, a faulty EGR valve, sensor problems or insufficient exhaust heat can block regeneration, so city cars may go years without it. Chemical spray cleaning is harmful to the environment and to the person using it.
The MS900 stand uses only warm water, reversing flow and compressed air pulses. It consists of a diagnostics/drying module (MS900A), a cleaning module (MS900B) and a washing and drying chamber (MS900C).