E220 DPF FILL LEVEL 400%

[Aston Dabb]

Got EML on a E220 with the 651 engine. Faults are listed down below with live data at idle. It’s reading 400% on the fill level and pressure is around 1 bar at idle and 3 bar when revved to Approx 2500rpm. Would anyone know if this is actually blocked with these readings or if it’s the wiring to the sensor? I’ve replaced the sensor already with a genuine one from MB dealer. According to data, last regenerated at 110k miles and has now done 116k!!! Thanks

 

[bembo449]

force a regen and reset the adaptions , perhaps whoever carried out the last one did not ??

 

[Aston Dabb]

force a regen and reset the adaptions , perhaps whoever carried out the last one did not ??

@bembo449 is 1.135 bar pressure at idle a lot though? Seems a lot to me

 

[bembo449]

Think it should of exploded if that reading was correct pal

 

[Dean Fletcher]

I thought the om651 regened around every 300 miles if the conditions were correct to do so? Not every 6k

 

[alexanderfoti]

Yes, regens are more frequent than every 6k and those readings seem right if the DPF is blocked. Clean the DPF and carry out reeveluation of DPF fill level and it will be ok. (assuming no mechanical fault has caused the DPF to fill quickly in the first place)

 

[Aston Dabb]

I have reset the DPF figures. EML went straight out and the current fault finally went to stored and it’s revving nice now; now it just needs a good thrash as it wouldn’t let me regen

 

[alexanderfoti]

It will go straight back to 400% if you don't carry out an active on road regen with diag.

 

[Aston Dabb]

It will go straight back to 400% if you don't carry out an active on road regen with diag.

It will let me regen now; I will regen on the road later. Thanks for helping

 

[Aston Dabb]

Left it idling earlier and it started to get very smokey from DPF area so I turned it off; @alexanderfoti you were right its at 112% already; so DPF is obviously incredibly blocked after all this time of no regen! So how can I go about cleaning this DPF? Will I have to remove it and clean it or could I run some cleaner through it?

 

[alexanderfoti]

Left it idling earlier and it started to get very smokey from DPF area so I turned it off; @alexanderfoti you were right its at 112% already; so DPF is obviously incredibly blocked after all this time of no regen! So how can I go about cleaning this DPF? Will I have to remove it and clean it or could I run some cleaner through it?

Yes, run dpf cleaner through it and then reset again.

If there is an engine fault making lots of soot, it will block quickly as well, so don't rule that out.

 

[rash.m2k]

I fixed this exact issue a few days ago, you need to force a regen using xentry, that will rev it to 1800rpm for about 15min, once that is done you then need to 'start a driving regeneration', which is basically driving round and round in 1st gear a 2k to 4k rpm.

I've a W204 2012 OM651 engine and had a check engine light on, now it's gone.

You MUST do the 'driving regen' like the poster said above an active regen will take it down to less than 200% (mine was reading 400% like yours). The speed is critical when doing this, must be less than 50kmph and 2k+ revs, so first gear round and round an industrial estate until it reads zero.

 

[Rappey69]

Mine was 400% full due to failed sensor.
MBS fitted new sensor then took it out for a road trip with laptop. Came back like a racing car, ie it was so much quicker...and lots and lots of short journeys later its still good... I check the fill level now and then.

 

[Aston Dabb]

@rash.m2k @Rappey69 i work for MB but I do truck & van and I do not get involved with the cars so the OM651 engine in the sprinters I’m very used to. I got a new pressure sensor through my work and fitted it; still read 400% so I reset the DPF data which put it down to 0% and the fault went to stored on Xentry which I then cleared and the EML went out. It’s now back at 112% already after 1 heat cycle; EML is still off as I think it has to get to 130% before the soot content Not OK fault code gets thrown up. Don’t usually get many DPF faults on the van OM651’s and with the current situation of coronavirus; I’m off work and cannot work for advice from the car team! I’m going to spray cleaner into the DPF today and then will an Active Regen with Xentry be needed or will it regen passively if the conditions/data are within DPF regen limits?

 

[alexanderfoti]

I would be checking for boost leaks.......... it wont fill quickly on its own.

it will regen if its within limits.

 

[onefortheroad]

@bembo449 is 1.135 bar pressure at idle a lot though? Seems a lot to me

my 0m651 sees 1.07 bar at tick over.

 

[Aston Dabb]

my 0m651 sees 1.07 bar at tick over.

@onefortheroad mine reads 0.995bar when hot and idling now. @alexanderfoti this car has been abroad from the UK with its EML on and the soot content not OK fault being current as the guy who used it didn't even tell me the EML was on until it developed an ABS sensor fault which obviously turned on traction and abs light... that’s why I can’t understand how it hasn’t blown up yet with almost 6k miles of no regen according to DPF readings in CDI! I’m still expecting to fit a new DPF with the amount of miles and no regen

 

[rash.m2k]

@Aston Dabb As luck would have mine has also just turned them EML light on, but the DPF only says 100%, this lockdown has not been good for my car. Since I got it down to 0% I did one local trip and one trip about 10/15 miles each way - so just two trips. I don't have a proper xentry so mine is a bit finicky just need to install it properly and get it working good.

Good to know you are not new to this! You can't tell over the internet how experienced someone is. I'm just a DIY'er and thought I'd share the Xentry stuff I'd used. Let me know what the issue is as it could be that mine has the same issue.

 

[Kev555]

Im just after sorting a DPF problem on my OM651 Vito. Your DPF pressure is good as mine is 1.2 bar at tick over after DPF off for a DIY deep clean. check injectors (running smoothness of Cylinder on my icarsoft) It will give you an idea if an injector is over fuelling? and possible filling DPF as was the case with mine. When my DPF was full @ 230% the back pressure at tickover was 1.11 bar. Have you any fault codes relating to injectors (teach in parameter codes etc?)

 

[Rappey69]

A lot of the above is beyond my skills... it does read some change a sensor then try and regen whilst not going anywhere? (maybe ive misunderstood)
Two MBS guys , one driving, one on laptop forced a regen whilst driving.. If it could be done stationary then surely they would have done that? (maybe they just didnt want me to see what they were doing to my car? haha) only joking guys...
I cant remember the ash level, seemed fairly low but the data claimed last regen 21.000km ago and was 400% soot.
A year on and fill level rarely seen above 67% , usually under 10.. not sure how as i do so many short journeys..