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      07-27-2016, 04:35 PM   #1
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Drives: BMW E90 330D SE
Join Date: Jan 2012
Location: Devon

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Why won't my DPF regenerate


Recently I've done a bit of work on the car based on it not getting to temp and potentially not meeting the conditions for DPF regen so:

EGR and Main Stats replaced (temps now much better)
replaced Glow Plug Controller Unit AND all glow plugs (which sorted the 'all glow plugs faulting' in Carly)
New battery

I did all this a couple of weeks ago and I do about 40 miles a day on mixed roads to and from work. Even though I have told Carly a number of times to request regen, which sets status to 1, when I come back to it the DPF status always reads zero. The 'Regeneration distance travelled' NEVER changes from:

240566304.00 m

which is something ridiculous like 149, 480 miles! I expected this to at least get greater the more I travel?!

Average regeneration interval is 648km and that doesn't seem to change either.

The stats are getting up to a normal temp (mid 80s to 90s) unlike the mid 70s they were reporting before replacement, plus I'm doing a reasonable run each morning/evening (20 miles each way). Since I changed all the above I notice the soot mass is significantly lower than it used to be and today, for example, from leaving work to reaching home it was at 24g / 25g.

I'm not understanding the non moving regeneration distance travelled plus I can't tell if it is actually regenerating...but a low soot mass at least tells me it isn't building up to the point of blockage...

Any advice?


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      07-28-2016, 03:01 AM   #2
E60525d's Avatar
United Kingdom

Drives: E90 BMW 330d M Sport LCI
Join Date: Mar 2010
Location: UK

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I have found Carly does not give me reliable info regarding the DPF. Do you have access to ISTA?

I use this and find it much better than Carly.
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