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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics DIY Guides & Discussions F11 Dpf Problem - High Soot Mass Error
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      05-10-2019, 02:16 AM   #1
Johny212
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F11 Dpf Problem - High Soot Mass Error

Hello, maybe someone could help me...

There is an error:
245700 - Particulate filter system: Heavily loaded particle filter (exhaust back pressure high)

There is around 45-50g soot mass
and differential pressure sensor shows around 30-40 hpa on idle gear

DPF regeneration, using bimmerlink, isnt working

Also "Driven route since regeneration" shows 60 km....So it was not so long ago, and didn't do any better



Any suggestion ?
The car is used on HW at the most of accumulation....
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      05-10-2019, 07:54 AM   #2
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Shorter journeys are not suitable for DPF regeneration, you need at least half a tank of gas and you need to be constantly doing at least 2,500 rpm and at least 40mph for at least 10 minutes consecutively, it should do the trick.
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      05-13-2019, 12:06 AM   #3
Johny212
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I've been driving for 20 minutes on high way, 5 th gear 2,5k-3k rpm after start regeneration, soot mass didn't get lower...

Anyway 50 g soot mass and last regeneration was 60 km earlier... Something is f!#$ up
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      05-26-2019, 02:31 PM   #4
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Well, it should gradually go away with regeneration... Here's what ISTA says:

1. Check oil level and change interval. Correct oil level or change oil.

2. Check swirl flaps.

3. Perform exhaust gas pressure check

4. Check diesel particulate filter (visual inspection to see if exhaust tailpipe and diesel particulate filter outlet sooty).

5. Perform regeneration. Only possible with constant-speed driving for at least 30 min. (The regeneration cannot be stopped with the corresponding service function for this fault).

6. Check intake ports and intake valves for sooting. Excessive oil entry from the crankcase ventilation can lead to sooting, especially with short-distance driving.
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File Type: pdf 20190526_213430_FUB-H.pdf (933.7 KB, 26 views)
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      06-17-2019, 03:16 AM   #5
Johny212
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So for now,
soot mass was around 45-50g
differential pressure sensor shown 40 hpa / mbar on idlee
and there was an error about too high soot mass

Still regeneration wasn't go itself and there were no response on force regeneration. Status of rege was active / no active - temp didn't go higher than 450

After all checks I was on dyno to check power of the car, was decent - strong serial
Before dyno test all errors were cleared. Later after test, in highway regeneration started itself and soot mass went down to 10g.

Driven 3k km after dyno test, for now its fine. Also regenerations starting itself.

Weird things happens...
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