Page 1 of 1

Oil Ash Residue.

Posted: Sat Jun 27, 2020 5:01 pm
by dlloyduk
How is this reading obtained and reset. After recent oil change and service I would have expected some change. Reading is not changed?

Re: Oil Ash Residue.

Posted: Mon Jun 29, 2020 9:29 am
by admin
This is not directly related to the engine oil. This is a residue coming from the fuel combustion and it isn't removable, in fact when this deposit reaches the maximum accepted value, the filter must be replaced.
Only in this case, using a diagnostic tester, the oil ash value can be reset to 0 corresponding to the new filter installation.

Re: Oil Ash Residue.

Posted: Sat Jan 29, 2022 4:08 pm
by MilVal
How value or number is OK and when must be changed DPF? For Engine 2.0 TDI DFH.

Re: Oil Ash Residue.

Posted: Mon Jan 31, 2022 8:17 am
by admin
If the app shoes the percentage in the oil ash field, you can use it as an indication of the filter life.
If you don't see the percentage, your ECU doesn't have the maximum oil ash value but for a 2.0 TDI I usually see this value near 60-70 grams. You can use this value to estimate the filter life, but when your current value is near 55-60 grams I suggest to ask to an official service to know the real maximum value before to change or clean the filter. Or maybe you can find that value for your engine in the web.

Re: Oil Ash Residue.

Posted: Fri Feb 18, 2022 10:00 pm
by andycollings
Any idea why mine would be reading 0?

Re: Oil Ash Residue.

Posted: Mon Feb 21, 2022 2:53 pm
by Stephan86
Hello,
I also have also a question about the Ash Residue value. I had previously driven the CUNA engine. Everything was displayed there. I currently drive a CDUC engine. Unfortunately, this value is missing there. Can something be changed about that? Can you change the channel? I could use VCDS to see which channel I can use to get the value.

I have one more comment. Is it possible to include the engine oil temperature in the app? So you would have all the important data on one screen. Unfortunately, my instrument cluster is not yet able to display an engine oil temperature.

Best wishes

Re: Oil Ash Residue.

Posted: Mon Feb 21, 2022 11:35 pm
by admin
Stephan86 wrote:
Mon Feb 21, 2022 2:53 pm
Hello,
I also have also a question about the Ash Residue value. I had previously driven the CUNA engine. Everything was displayed there. I currently drive a CDUC engine. Unfortunately, this value is missing there. Can something be changed about that? Can you change the channel? I could use VCDS to see which channel I can use to get the value.

I have one more comment. Is it possible to include the engine oil temperature in the app? So you would have all the important data on one screen. Unfortunately, my instrument cluster is not yet able to display an engine oil temperature.

Best wishes
andycollings wrote:
Fri Feb 18, 2022 10:00 pm
Any idea why mine would be reading 0?
For both: you should try all the other engine groups looking for a readable oil ash parameter. Unfortunately I don't have detailed information for all engines, many of them have been verified by users using an existing group.
If you find something interesting I can modify a group or create a new one merging part of other groups.