There is two models active regen and passive regen

Active regen , the engine will rev up, inject fuel after combustion to purposely send it out the exhaust into the DPF as accelerant to burn the soot. This the engine will do itself once it detects too much differential pressure in the DPF, but is bad for engine if it is interrupted because all the excess fuel will leak into engine oil and dilute it. Sometimes no choice but always when active regen is happening to let it finish.

Passive regen, that is simply driving at highway speeds for 10-20 minutes , the exhaust gas remains hot enough to burn off the soot hence no action needed, sort of self cleaning as you drive. Most of us do anyways for sure once every few months for long weekends or whatever.

Important is to use euro5 always. Once twice euro 2 in emergency is okay, but daily meal always euro 5

And that's it , nothing much to do except cruise the highways and enjoy all that torque