DPF Regen - help
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Joined: Mar 2025
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C 250D
DPF Regen - help
Had my Merc c class 250d since August last year and had nothing but bother. NOX sensor replaced, MAF sensor after that; then DPF clogged this week and needed a professional clean. Guy said it was pretty clogged and soot level was up to 230. He got it down to about 25% percent and said to keep an eye on it as it should be doing the regen itself.
I do about 35 miles per day commute (each way) mostly motorway but in rush hour so lots of stop start and not really getting the high rpms I’d like to help do the passive regen. Just wondering if that will likely be a culprit? I also drive in comfort mostly so the RPMs are low (trying to conserve fuel). Even in sport mode at 75mph rpm seem to be 1500-2000. Just wondering what I could be doing that’s meaning the regen isn’t doing it naturally? And also how can I tell if a regen is even happening mid drive?
I do about 35 miles per day commute (each way) mostly motorway but in rush hour so lots of stop start and not really getting the high rpms I’d like to help do the passive regen. Just wondering if that will likely be a culprit? I also drive in comfort mostly so the RPMs are low (trying to conserve fuel). Even in sport mode at 75mph rpm seem to be 1500-2000. Just wondering what I could be doing that’s meaning the regen isn’t doing it naturally? And also how can I tell if a regen is even happening mid drive?
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W213 All-terrain
Indeed short route interrupt the regeneration process, but it also doesn't produce any ash ...
On diesel engine, higher rpm produce ash, so it's not the best scenario to force the regeneration process.
On MB, a complete regeneration process can be made at 1400rpm...
So instead of cleaning a clean DPF, I would search for the real course that has the virtual clog as an effect. You can start with a diagnosis.
On diesel engine, higher rpm produce ash, so it's not the best scenario to force the regeneration process.
On MB, a complete regeneration process can be made at 1400rpm...
So instead of cleaning a clean DPF, I would search for the real course that has the virtual clog as an effect. You can start with a diagnosis.
Last edited by trigital; Mar 22, 2025 at 04:57 PM.
