DPF Regen Frequency / Issues / Force discussion.

[cfdave]

Is the only issue you have the fan going into "hyperdrive" after a short journey, or have you had other issues ?
If it's just the fan coming on, then I wouldn't worry as it's normal, and your daily motorway journey will sort the regen out.

Pete

its the juddering under heavy load (up hill, foot down). Im wondering if its the map. Or a fuelling issue. Can i check whats happening when juddering with any app/software?
Torque or similar, as i have an iphone.

 

[huw169]

How often should regens happen?
Mine does it about every 300-350 miles, but is this about right, or is it an indication there is something wrong with my combustion process?

 

[Broadside]

The VAGDPF app allows you to see the distance since last regen, mine is usually 150 miles between each regen.

 

[T6ARF]

The VAGDPF app allows you to see the distance since last regen, mine is usually 150 miles between each regen.

How does that work mate.... how does it ‘link’ up with the van.... Carista?

 

[Broadside]

Yes you can use the Carista dongle then download the VAGDPF app but it only works on Android.

This is mine during a regen, the box on the top right shows the mileage since last regen.

 

[CarpyT6]

I'm approx 350 miles between regens since having the software update, was about 200 miles before. I'm down to 1-2 regens per tank now instead of 3 before as well.

 

[mmi]

How often should regens happen?
Mine does it about every 300-350 miles, but is this about right, or is it an indication there is something wrong with my combustion process?

How do you drive - at what speed? How long between engine shut-offs?
I can reach 300 miles between regens only by staying mostly at 70-80 mph.

 

[huw169]

How do you drive - at what speed? How long between engine shut-offs?
I can reach 300 miles between regens only by staying mostly at 70-80 mph.
View attachment 116012

Yeah 70-80 mph, but I’m sure it’s not much less when I’m doing short journeys, but I’ll try and keep an eye on that to be sure.

 

[Florry66]

Just to add a bit of data from my limited experience, so my 150 manual highline was new from 5th May, since then done mainly short journeys of 6 miles / day to work. Monitoring soot level using Carista and on average this journey is adding around 1gm per day. Its had 1 regen before Carista was used, happened at around 70 miles, been monitoring soot since and currently at 27gm with 206 miles on the clock which is about right, the good thing about Carista is I can force the regen to suit me when I get near the 30gm if thats where it normally starts, im going to let it run and see what happens

 

[huw169]

Yes, to follow on from @mmi , I have mainly been doing short journeys of late and I’m about 150 miles from last regen and 27g soot. Carista is a great tool.

 

[Florry66]

Further to previous posts, just a little more info, it might be useful for some. So my Carista was reading 29.6gm of soot this morning so decided to take it for a spin, level got to 30.2gm and the Regen kicked in, the only way I knew was the soot levels dropping on Carista. Interestingly, the soot level dropped even when driving in town at <2000rpm and 30mph. The soot dropped to 8.5gms and regen stopped, with level of soot then increasing as normal, around 1gm every 5 miles. Current ODO reading is 240 miles so next regen should be around the 390 mile mark, Carista is indeed turning out to be an invaluable tool if you make a lot of short journeys like me. Hope somebody finds this info useful Cheers

 

[huw169]

200 miles today on A roads. Wanted to regen as soon as I got here but had less than 1/4 tank so thought it wouldn’t. I was wrong. It just got on with it.
I’m sure VW have adjusted the regen program in the last year as mine had a software update in Nov.

 

[huw169]

Regen didn’t finish last night. Only down to 23g. Get in this morning and got 70 mile range of fuel left, engine not warm, and it just gets on with it.

 

[mmi]

Regen didn’t finish last night. Only down to 23g. Get in this morning and got 70 mile range of fuel left, engine not warm, and it just gets on with it.

No fuel low light though?

 

[huw169]

No fuel low light though?

No. But still way lower than 1/4 full. Was almost into the red, but not quite.

 

[CarpyT6]

No. But still way lower than 1/4 full. Was almost into the red, but not quite.

Mine has done a regen with only 11 litres of diesel and the fuel light on. This was before system update too.

 

[Slap_ed]

T6 150 2018
Mine starts a regen at 24.5 grams and ends on 5.5 grams. Is it that mine is missing the latest update Do you think?

 

[huw169]

T6 150 2018
Mine starts a regen at 24.5 grams and ends on 5.5 grams. Is it that mine is missing the latest update Do you think?

I don’t ‘know’ the answer, but I suspect it is more about the calibration of the pressure sensors either side of the dpf as I believe it just calculates a theoretical soot mass based on differential pressure. Could also be one of those sensors not quite right, so I’d be keeping an eye on it to see if it changes. If it does change, I’d be getting it looked at.

 

[Sanyes]

Hello
I am new around here.
I have an issue with my T6 euro 6 102 ps
When I was coming home, my fuel temperature sensor (G81) fault appeared - I had my VCDS on me and my laptop and I could identify it really fast. Unfortunately I couldn't remediate it and could only fix it after I got home (it was a sliced wire not the sensor itself)
I came home with the broken sensor (almost 600 miles) and my van showed the check engine light and checked with VCDS and the P2463 error came up. (had 59.99g soot mass)
I managed to get home without the van getting into limp mode.
After I repaired the fuel sensor, I took her up for a spin, to force a regen, but it didn't happen. (soot didn't lower from 59.99g)
Van isn't in limp mode, it runs well, but I am afraid it will if I will drive like this
What should I do? How to fix this issue ?

1 Fault Found:

23902 - Diesel Particle Filter
P2463 00 [175] - Excessive Soot Accumulation
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 449946 km
Date: 2049.01.12
Time: 19:32:40

Engine RPM: 2368.75 /min
Normed load value: 34.9 %
Vehicle speed: 50 km/h
Coolant temperature: 88 °C
Intake air temperature: 17 °C
Ambient air pressure: 950 mbar
Voltage terminal 30: 13.140 V
Unlearning counter according OBD: 40
Counter for regeneration time of particulate filter: 0 s
Particle filter: kilometers since last regeneration: 1646.0
Particle filter: soot mass measured: 1.10 g
Particle filter: soot mass calculated: 59.99 g
Particl.filt.: differential pressur.sensor 1 bank 1: dyn.offset: -3.7 mbar
Particle filter: field regeneration lock status: 11


Readiness: 1 1 0 0 1

 

[mmi]

Mileage: 449946 km

- impressive!

Have you tried to trigger by VCDS:

-Service regeneration of particulate filter​

-Service regeneration of particulate filter while driving​

Please post

1) full engine section of VCDS scan​

2) full measument block data from the engine - how-to here --> https://www.t6forum.com/threads/t6-and-dpf-yes-that-old-chestnut.26873/post-373585​