Diesel im Motoröl - so langsam wird´s kritisch | Posts 16+

hkss wrote:

(...)PD-elements (...) sealed (...) completely replaced (...) no change (...)

If your ZK has a crack in the diesel channel, then these measures will not work.

hkss wrote:

Unfortunately, I don't have more options in my current situation.

One could commission this pressure loss test from a competent workshop.

guste100 wrote:

hkss wrote: (...)PD-elements (...) sealed (...) completely replaced (...) no change (...) If your ZK has a crack in the diesel channel, then these measures will not work. hkss wrote: Unfortunately, I don't have more options in my current situation. One could commission this pressure loss test from a competent workshop.

yes - unfortunately
and a capable workshop - no, that doesn't exist.
I haven't encountered anything like this in my entire life (I'm over 50).
Unfortunately, this is very sad.

How can the DIY method be evaluated?

I simply derived the idea from the VTG spray test.


Hand pump
Manometer
Return and forward flow on the DiFi
Return to
Pre-processing "pump up"

Maybe also pump it up from the return side?

Possibly, instead of introducing air, use an air bubble to "push" the diesel.
Do PET bottles not withstand a certain amount of pressure?

Of course, not with the compressor at 8 bar

m;

...just a quick correction to what I wrote above.
To ensure that it remains intact for future generations.

A) Since today, I know that the active regeneration phases are shortening.
(yes yes Uncle BM - You were right all along).
The last two that were triggered, have already been triggered after 360km, and not as has been observed in the last 5 years, always at 380km.
Rest ash mass is already at 40 (should soon increase to 41) and the car has 148,500 km.

B) "My" Chiptuner seems to have "overextended itself a bit."
He cannot extend the recovery phases.
He said that it wasn't impossible, but he can't do it.
In other models (older / first-generation DPFs), he would have already done it.

Right now, I'm going to take a break for the next few months.
In August - Vacation trip 3000km - therefore, a very different driving profile for this
Time. I'll change the oil beforehand and then get it checked.
I'm just feeling a bit lost / without a plan at the moment.
As I've already said, I no longer have a workshop and can't do it myself anymore.

dieselmartin wrote:

How to assess a DIY method? I simply derived the idea from the VTG spray test. Hand pump Manometer Return and forward flow on the DiFi Return to Pre-processing "pump up" Maybe also pump it up from the return side? Possibly, instead of introducing air, use an air bubble to "push" the diesel. Do PET bottles not withstand a certain amount of pressure? Of course, not with the compressor at 8 bar m;

That is, in principle, not a flawed idea. Unfortunately, you can only simulate it statically. The various operating conditions such as temperature, density fluctuations, different pressures in the combustion chambers, vibrations, etc., etc. unfortunately cannot be controlled.

In order to detect such a "small" error would be like winning the lottery with a 6-sided die.

I've already communicated this via private message, but here's the approach for everyone:

Park the car on a flat surface, check the oil level (ideally take a photo).
Then, warm up the engine, and initiate the forced regeneration. Once it's finished, do it again, perhaps 3-4 times in a row.

Afterwards, park the car back on the level surface, let it cool down, and check the oil level again. If anything has changed, then the fuel comes over the regeneration and enters the oil.
In case of doubt, perform a test run: Drive the same route without activating regeneration, then check the oil level again.