Diesel Particulate Filter cleaning solutions
My diesel SUV has just returned from the shop with a new DPF as the new one plugged up at 42,000 miles. This filter is plumbed right off the turbos and requires that a lot of the car is disassembled ...
Forum Discussion
Durb wrote:
The vehicle is a 2015 Mercedes with a 2.1 liter 4 cylinder, essentially the same engine in some Sprinters but tuned for more power. How do I run it hard, the engine loafs all the time and if I put my foot in it I will far exceed the speed limit in very short order? Are jack rabbit starts sufficient, freeway time at low RPM or choose gears to keep the revs high? Wouldn't high RPMs cause the filter to run cooler?
The reality is there is probably little you could do other than longer drives. What happens is your vehicle tries to go into regen but you quit driving by the time it is complete. It will try again once the engine temp is high enough. But now you have completed your drive and it starts all over again.
The small diesels do not make the obvious sound change (in my experience) to know when regen is occurring. So you end up in this death spiral you are not even aware of.
