DPF wash out and rebuild

[Mysticality]

Hmm... I wonder how long the 125CR will ACTUALLY take before the DPF fills up...
Mine's 13 months old and almost at (like 50km off) the 60,000 service. Oh, well... Guess I'll find out!

Excellent write up, by the way!!

[Valleyboy65]

Hi newbie here,

Reading with interest your clean out, good job, I have a 2.5 TDi transporter with a few issues and 215,000Klms.

I was just wondering how you know the core is so empty, ''the car is telling me the core is 0.0%'' are you running this VCDS software I have heard about on the forum. Is it good?

John

[h100vw]

Hi newbie here,

Reading with interest your clean out, good job, I have a 2.5 TDi transporter with a few issues and 215,000Klms.

I was just wondering how you know the core is so empty, ''the car is telling me the core is 0.0%'' are you running this VCDS software I have heard about on the forum. Is it good?

John

That's what he has John. Ross-Tech: Home with the sensor correctly calibrated it does tell you soot loading.

Gavin

[Greg Roles]

Yep I'll add the Ross Tech bit so you guys can sort the loading post washout, but I got it so clean by spending HOURS on the gurney, and washing it over and over and over. On full bore you canlt hurt the core at all, right up close, so you basically go to town, expect to get VERY wet, and the feedback is my DPF is still showing regens down to zero and only 5% ash at a -1.8% setting 5k later. Basically that means the ECU feels it is cleaner than 5 grams!

It's basically back to new, this washout method works, a treat. Car goes FAR better too, less restriction.

Thanks for the kind words, I do like pioneering : )









( when it goes well that is! )

[Greg Roles]

Hmm... I wonder how long the 125CR will ACTUALLY take before the DPF fills up...
Mine's 13 months old and almost at (like 50km off) the 60,000 service. Oh, well... Guess I'll find out!

Excellent write up, by the way!!

I would expect CR diesels to last FAR better, as the DPF design is a better one, CR is FAR kinder on soot production and thus the DPF, and the regen process has two valves in the system to ensure they work as intended. All the things that can go wrong in the MKV have been addressed in my humble opinion.

Use good fuel, and stretch her legs when you can, lots of small, start stop trips are to be avoided. Run excellent oil, and a Provent. Period.

[Valleyboy65]

Hi Gavin,


Is it me or does this site time out or drop out? Just lost my post!!

I wanted to thank you for your replies. Have been away on a little camping adventure this week.

VW Campbelltown told me DPF 'worn' and will need all new temp. sensors and new DPS. Van has regen'd approx 3 times in 300 Klms.

Happy days.
Cheers

John

[Mysticality]

I would expect CR diesels to last FAR better, as the DPF design is a better one, CR is FAR kinder on soot production and thus the DPF, and the regen process has two valves in the system to ensure they work as intended. All the things that can go wrong in the MKV have been addressed in my humble opinion.

Use good fuel, and stretch her legs when you can, lots of small, start stop trips are to be avoided. Run excellent oil, and a Provent. Period.

Well that was a little over a month ago, and today she hit 69,700km... :S

I don't spose you could post a step-by-step on the Provent? I've tried searching, but I can't find a nice "What it does, how it does it and how to make it do it"
... Maybe even a little "how much it costs"

I think I remember someone mentioning a high-flow DPF?... Any news on that?

[h100vw]

I think you have to click remember me as you log in or you get forgotten.

Worn isn't the best description really is it.

As you are in Campbelltown, how about going to Camden GTI and having Matt get the numbers out of it. Then we'll know for sure.

Cheers

Gavin

Hi Gavin,


Is it me or does this site time out or drop out? Just lost my post!!

I wanted to thank you for your replies. Have been away on a little camping adventure this week.

VW Campbelltown told me DPF 'worn' and will need all new temp. sensors and new DPS. Van has regen'd approx 3 times in 300 Klms.

Happy days.
Cheers

John

[volksMuller]

greg , we achieve the same ash load content measured on VAS after using the luiqi moly clean programme....we perform this task for many dealers who follow vw's protocol and say it requires replacement......many a tdi in limp mode with high% blocked filters can be saved .....some whilst in car others need to be removed and cleaned...we charge $395.00 for the task and have hit a home run on EVERY job.....lot less work with the exact same result......just saying there are others way's that work just as well..cheers steve

[benough]

Very interested Steve.

Can I ask how you do it? I imagine you disconnect i from the turbo and spray it down?