Regeneration: Questions & Status Update

Hello!

I have a few small questions about the DPF.
I previously thought that, in principle, a forced regeneration occurs every xxx kilometers, regardless of the driving profile and the resulting ash content. Is that really the case?

And then I would be interested in the termination conditions. In my measurement blocks, it says the following:

00000010 00000000 Particle filter, field regeneration; Abort conditions: 903.
512 Particle filter field regeneration; Abort conditions 919.
00000000 Particle filter; Field regeneration Requirement status: 921.
0 Particle filter; Field regeneration Requirement status: 929.
00000000 Particle filter; Field regeneration, lock status: 930.
0 Particle filter; Field regeneration, lock status: 938.
649390 m - Particle filter; Kilometers since last regeneration: 939.
26.79 liters of particulate filter material; fuel consumption since last regeneration: 940.
13.68 g particulate filter; calculated soot mass: 943.
44916 - Diesel particulate filter; Time since last regeneration: 945.

That means that, due to the amount of soot, it wasn't ready for regeneration yet; the threshold is significantly higher. However, under the second point [field 919], the termination condition is listed as "512."
What does this value specifically mean? Does anyone have a lookup table?

Thank you for your efforts!
Dirk.

Hello,

Quote:

So far, I thought that, IN PRINCIPLE, a forced regeneration occurs every xxx kilometers, regardless of the driving profile and the resulting ash content. Is that really the case?

Let's just say that this is how it is with the cars I drive and know about.

Unfortunately, I don't have any information about "512" off the top of my head. SSP?

Best regards, Rainer.

Hmm. Okay. Then at least I understood that correctly
Unfortunately, the terms and conditions of the SSP don't mention anything about cancellation policies (at least not in the sections I looked at – someone might correct me if I'm wrong!). But maybe someone else will have some information on that... Thanks for your reply so far!

Hello!

I just checked again. Even though it seems to have regenerated, the termination condition remains the same. Here are the current values:

00000010 00000000 Particle filter, field regeneration; Abort conditions: 903.
512 Particle filter field regeneration; Abort conditions 919.
00000000 Particle filter; Field regeneration Requirement status: 921.
0 Particle filter; Field regeneration Requirement status: 929.
00000000 Particle filter; Field regeneration, lock status: 930.
0 Particle filter; Field regeneration, lock status: 938.
241191 m Particle filter; Kilometers since last regeneration: 939.
9.20 liters Particle filter; Fuel consumption since last regeneration: 940.
10.29 g particulate filter; calculated soot mass: 943.
15109 s Particle filter; Time since last regeneration: 945.

Best regards.
Dirk.

brezelmann01 wrote:

I previously thought that, IN PRINCIPLE, a forced regeneration occurs every xxx kilometers, regardless of the driving profile and the resulting ash content. Is that really the case?

Hello,

"Same here with my 170 hp CR engine. It spontaneously starts up every 385 km, and this happens even though I drive about 80 km (twice 40 km) on the highway daily, for a total of around 100 km. And mostly at speeds of 100-120 km/h due to traffic."

A colleague with a 2010 Tiguan 140 hp CR model with automatic transmission and all-wheel drive achieves fuel consumption figures of over 800 km per tank, despite mostly short trips around town. He personally read the data using VCDS.

Is the kilometer-based safety distance programmed with such extreme variations?

brezelmann01 wrote:

Hello! I previously thought that, in principle, a forced regeneration occurs every xxx kilometers, regardless of the driving profile and the resulting ash content. Is that really the case?

That's what I have. It's a Golf Variant with a 2.0 TDI engine, 140 horsepower, and a DSG transmission.
The regenerative braking will start either at 385km or when the battery is charged to 45%, whichever comes first. Your driving style (frequent or infrequent overtaking) and whether you're driving in the city or on the highway significantly affect how quickly the 45% charge level is reached.

I once experienced a situation where the regeneration process started due to the 45% charge level, but it didn't go down to 0 because of the start/stop function (during a shopping trip), and it stopped at 13%.
And 30 kilometers later, the regeneration process began again, allowing us to reach the 385-kilometer distance.