Dpf regen

[Simmy]

why do you need to monitor if every thing is running well? the onboard diagnostics on the car will let you know when there is a problem just drive and watch out for messages on the dash

[yostumpy]

What happens to the contents of the dpf (soot?) during and after regen? If it works fine in urban traffic, as mine did yesterday , in traffic in Grenoble, with 39deg temps, and ac on. I thought where does it go, if urban environment then hardly likely to get blown out, and easy eco driving with no ‘hoofing it’ ? Should it be hoofed after regen?

[monkeh]

Originally Posted by yostumpy

What happens to the contents of the dpf (soot?) during and after regen? If it works fine in urban traffic, as mine did yesterday , in traffic in Grenoble, with 39deg temps, and ac on. I thought where does it go, if urban environment then hardly likely to get blown out, and easy eco driving with no ‘hoofing it’ ? Should it be hoofed after regen?

Quite simply - it remains in the exhaust until you hoof it, but it's now ash, and gets chucked out the back of the car with the diesel soot! I'm surprised that my euro 4 XC has a significant amount of soot in the poo chute as compared to my merc engined previous driver. The exhaust never got dirty on that.

[apersson850]

Being in Sweden, and quite rural, I've never ever had any issue with the DPF. I've noticed it takes roughly 30 km for a full regeneration in country road driving conditions.
For cars without start/stop, the easiest way to see if it's active is that the consumption doesn't go down to zero when coasting.