2017 204 - DPF Filter at 60g soot above 50g forced regen limit

[xop32]

I have just purchased a 2017 transporter 204 t32 with 45k miles on it

The engine light is on and the coil light is flashing when i purchased it, i was aware there are issues to fix on it, so got is for a good deal

I did scan it before purchase and it came back DPF issues and EGR issues as listed below





Fast forward a few weeks later, just had it plugged into a vw odis laptop by a friendly vw tech and they recommened first thing to do as the DPF is at 60g soot level is to do a forced regen or 2

The egr issue could be a result of the bolcked DPF, so the first thing is to try to reslove the DPF issue

Now today i connected my laptop to try to do a forced regen on it , but as the soot level is at 60g its above the 50g limit of the odis DPF regeneration proccess

In the job order on odis it did come back as the DPF regen as the first task to do






The problem i no have is how to clear out some of the soot to get it below the 50g max limit, i was think of buying some that foam type chemical cleaner to put in the front part of the DPF in the hope it might clear it out abit in order to bring it down under the 50g soot level

i was thinking of getting the Normfest DPF100 - diesel particle cleaner and spray it into the front part of the dpf after taking out one of the sensors, like in this youtube video on a mercedes van

This question are :

1) is it ok to use these type of DPF cleaners on the T6
2) is it a better option to remove the DPF to try and chemicaly clean it
3) if i am able to bring the soot level under 50g is it advisable to then do a couple of forced regens

 

[Dellmassive]

So the load measured and calculated of soot is above the max level of 50g.

I don't know if mechanical cleaning will enable the system to detect any change or not.?

Previously if the soot was too high it needed the DPF to be swapped out.

Will it rev? . . . . Have you tried an Italian tune up?... IE take it for a long drive on motorway for a 2hour round trip? With mid range RPMS.?

Have you tried taking it into the main dealer?.... They may be able to force a static regen?


Is the engine in good health? Or is it dumping fuel or oil into the exhaust system clogging it up.?

 

[DXX]

I have no experience of cleaning DFP’s but plenty of experience cleaning heat exchangers and filters.
Back flushing is the normal process, reversing the flow with high velocity fluid such as water. You could add chemicals / detergents if you are sure they are compatible with the metals in the DPF.

 

[xop32]

the engine seems ok, its only done 45k miles the previous owner lived in the countryside and only ever done small trips in it, and they also used the van for awhile with the fault, so the soot levels kept building up

the van is now in limp mode so it does not seems to have full power in it to give it a good blast

should i remove the DPF and try and give it a good clean out, you do see lots of videos on youtube of poeple doing it, just thinking if we can realase some of the soot from it , it might bring it down below the 50g max level to then do a few forced regens on it

on my laptop with odis 6.2, i left click on the module 1 engine controls (can't remeber what is called now) and its not showing a emergency regen on there, only the standard regen, which does have a max upper limit of 50g to run threw

i did call a few specialist dpf cleaning companies and they said they can do a 'on the car' dpf clean with chemicals, which i am guessing is the spray stuff they just put in, just at the front of the dpf when you remove one of the sensors. i am not sure if this will work or not but i have ordered some from eurocarparts (£50) and will try it today or tomorrow , there are a couple of other poeple on here who have mentioned doing this , but it did not seem to work for them

can you actualy clean t6 dpf if its removed from the car ?? i no its not the ideal solution, but poeple seem to be doing it, but could we do it at home in the back garden with a pressure washer and dish washer tablets??

 

[Loz]

The DPF soot level is a calculation derived from the 2 differential pressure sensors, therefore if you can remove some soot and get a better flow you should then be able to force a regen.

If it were me, I would remove it and chemically wash it through.
You don't have much to lose, as the alternative is a new DPF, but then it depends on if you are doing the work, if not, it might be better to get a dealer to replace the DPF

 

[Raul a/3]

If it was me I would buy 5L of the car dpf cleaner, take the dpf off, soak overnight in cleaner and pressure wash reverse flow. Or take it to a cleaning specialist where it will measure the pressure flow before and after.

 

[Dellmassive]

If it was me I would buy 5L of the car dpf cleaner, take the dpf off, soak overnight in cleaner and pressure wash reverse flow. Or take it to a cleaning specialist where it will measure the pressure flow before and after.

welcome to the VIP club @Raul a/3

Got any links to places that offer that DPF service?

.

 

[Raul a/3]

No links afraid. I had a hiccup with the egr cooler, and was researching dpf cleaning but haven’t saved any. There is at least two I found in SE. You have to take it of.

 

[Dellmassive]

possibly worth a call to find out a price?

Call Out2 - Mobile DPF Solutions | East Grinstead

CheckCall Out2 page and learn more about Mobile DPF Solutions different services to meet your demands. Contact us now.

dpf-fixer.co.uk

 

[Dellmassive]

and . . .

Off Car DPF Cleaning

dpfcleans.co.uk

thats a bold statement !!!! -

Guaranteed DPF Cleaning 98%+ Ash and Soot removed​

.

 

[xop32]

i have tried to get the top dpf sensor off, but its not moving, so giving up on that one

took it to my local garage and they had a go at removing it with no joy

i was just going to try putting some of that DPF100 cleaner down there



next option is maybe trying to remove the DPF to give it a clean out

anyone no of a guide on here with pictures on how to remove the DPF??

i had a good look at it and as mine is 4wd, i am not sure if the dpf is going to come off in the gap between the body, rear subframe and the 4wd system and propshaft

is getting a dpf off the car , a dropping down of the rear subframe?? just trying to do this on the driveway with the van on axle stands

 

[Howzat]

i have tried to get the top dpf sensor off, but its not moving, so giving up on that one.........

is getting a dpf off the car , a dropping down of the rear subframe?? just trying to do this on the driveway with the van on axle stands

If you can't get the sensor off how can you remove the whole DPF?

 

[xop32]

you can disconnect the wiring plugs for the dpf sensors and then remove the dpf with all the sensors still attached

 

[Loz]

 

[mmi]

i had a good look at it and as mine is 4wd, i am not sure if the dpf is going to come off in the gap between the body, rear subframe and the 4wd system and propshaft

I'm not sure I understand - could you please post a picture.

 

[xop32]

thanks for the erwin guide thats really usefull, do you have the page 308 for tighting sequence on refitting

i will get some pictures of it tomorrow

i was looking at the gap between the propshaft / rear drive flange for the 4wd model on the back of the gear box and the body / heatsheilds etc, and thinking will the dpf filter squeeze threw there once its all disconnected?

i just did not want to take it all off and then realize that the gap is to small for the dpf filter to get past, not sure if its a on a ramp job requiring the drop down of the big subframe to gain extra access to get the dpf filter past and out

 

[mmi]

By any chance you are working on the catalytic converter. Unlike cars where all is in single package, on T6 DPF is a separate unit under the van.

 

[Loz]

Yea sorry, I meant to clip the next section.

 

[DXX]

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[xop32]

thanks for all the info, its a real help for me on this job

i thought the Oxidation catalytic convertor in the above pictures post #17, was the DPF filter

and the Diesel particulate filter with SCR trap catalytic converter was just a catalytic converter

so what should i do now??

should i just remove the Diesel particulate filter with SCR trap catalytic converter, and leave the Oxidation catalytic convertor

its going to be a much easier job to do it that way, or do i need to remove the Oxidation catalytic convertor and flush that threw as well as the Diesel particulate filter with SCR trap catalytic converter