Oil ash residue

[t6_tom]

Hi

I did try and search apologies in advance if this has been covered before.

I have a 204 engine 2016 plate. Just used the VAG dpf app for the first time and I have 24.8g of oil ash residue at 36k miles.

I have no idea if this is a normal amount and even if it's calculated on an actual value or just an assumption from the mileage.

Am I correct in thinking that at around 100 g the DPF needs replacing?

Thanks in advance

 

[Dellmassive]

more info here:

DPF Regen, Yellow Light & Adblue - Whats It All About? -

DPF Regen, Yellow light & AdBlue - Whats it all about? - The DFP light is becoming a more apparent issue with modern diesel vans, unfortunately, it’s a fact of modern diesel life. what is a DPF? Diesel particulate filters (DPF) are very effective in cutting emissions, trapping even the...

www.t6forum.com

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[mmi]

24.8g of oil ash residue at 36k miles.

I would say quite normal. It's a calculated value - the accumulation rate varies - seems to be dependent on driving "style". Driving "harder" (=more fuel) accelerates the ash accumulation.

T6 and T6.1 both have engine parameter "DPF ash load limit" 110 grams.

 

[t6_tom]

I would say quite normal. It's a calculated value - the accumulation rate varies - seems to be dependent on driving "style". Driving "harder" (=more fuel) accelerates the ash accumulation.

T6 and T6.1 both have engine parameter "DPF ash load limit" 110 grams.

Super, thanks so much for that really put my mind at rest. Will keep an eye on it in the future and potentially adjust my driving style!

 

[Grim Reaper]

It may not be necessary to replace the DPF, just taking it out of the van and getting it backflushed (either by commercial means or DIY) and replacing can clear out the ash deposits and give the old one a new lease of life.
Forget about those 'Carbon Clean' cowboys who claim to be able to flush them out whilst on the vehicle, the only way to do it is to backflush and that means taking the DPF off.
@xop32 has done this recently, though after cleaning the DPF it seems the EGR is causing some issues as well (or maybe the EGR issues have caused the DPF to block up)

 

[xop32]

watch this youtube video on cleaning a dpf at home

i have just done this on mine, and i was very suprized by the amount of soot and ash i did remove

but the job is not a nice one to do, but is cheap only cost me £20

i choose to use, dishwasher tablets for a first 2 times soaking and flushing, and brick acid for the acid flush
thinking about it tho, its probably easier just to take it to a specialest company thats going to do the flushes for you after removing the dpf from the van, i would expect to pay 150-200 for this


of note is the soot build up in the egr cooler on all these vans, mine was also a 204 engine with just 45k miles on it

i guess most people dont reliase the importance of keeping the vans within deafult values of a dpf regen's done by the system on the van

1) the tank over 1/4 full at all times
2) not using the cheaper supermarket fuels all the time
3) going on longer runs so the van gets up to temp and then can start doing regens itself
4) avoid constant short journeys