DPF ersetzen: Was alles mit VCDS Anpassen? | Posts 16+

Small update:

The engine is still running well. Since the last regeneration, I've driven 190 km. That's a mix of 50/50 between country roads and highway. I'm driving at a brisk but anticipatory pace. The soot level is currently at 38%. I think regeneration is initiated at 40%.

That would mean I would have a regeneration cycle of approximately 200-220 kilometers.

That seems a bit too short to me. Are there any best practices or guidelines available?

Thomas.

Hi,

what was that about?

dieselmartin wrote:

I would: ... - Differential pressure sensor, if it's still the old 03G , replace it. ...

I already have the newer version installed, but I'll probably replace it as well.

Needs to be ordered yet...

Thomas.

Yesterday, while driving on the highway, it finally happened. After driving 210 kilometers, the soot sensor indicated a 45% soot load. The regeneration process started well.

Interestingly, this process was then stopped at approximately 10% soot loading. The charge then slowly decreased to 5.9%, and remained at that value for the remaining 20 kilometers.

I'll wait and see how the next regeneration goes. I might need to adjust the ash content value slightly upwards.

By the way:
I installed the differential pressure sensor with part number 07Z 906 051A. It seems to be the first one, as it has a manufacturing date of 06/17 printed on it.

Thomas.

Quote:

I installed the differential pressure sensor 07Z 906 051A.

Is this referring to part number 076 906 051 A?

I also often experience that the injection is stopped after 10%.
Then, over time, the charge level will also return to 0%.

m,

Here's a photo of the sensor. Type is exactly as I wrote it above.

According to. AKTE offers two different types of sensors for the BRE.
07Z 906 051 A up to 4F-7-159515.
076 906 051 A from 4F-7-159516.
In the 2007 model year, the switch was made to the type you mentioned.

For the ASB, BMK, BPP, and BSG engines, the part number is 059 906 051 A.

By the way, the Bosch part number for my sensor is 0 281 002 711. According to Bosch, this sensor is also compatible with other engines. Perhaps they simply switched suppliers.

I'll wait and see what's left of the soot after the next regeneration cycle. If the results are significantly above 0% again, I will adjust the ash content and observe the reaction.

Thomas.

Okay,

Approximately 1000 km have passed since the DPF (Diesel Particulate Filter) was reinstalled. The regeneration cycle occurs between 150 and 220 km. I feel like something's about to happen.

During regeneration, the post-injection is always stopped when the soot load reaches 10%. After that, the load value decreases to approximately 5%. I haven't experienced anything this intense before.

Okay, then let's replace the differential sensor and/or increase the ash mass setting.

Web spider.

ThomasG wrote:

So, Approximately 1000 km have passed since the DPF (Diesel Particulate Filter) was reinstalled. The regeneration cycle occurs between 150 and 220 km. I feel like something's about to happen.

Clear indication of ash mass being set too low.

The ash mass generates a pressure difference, which is interpreted as soot ingress (in the calculation model), and therefore, regeneration is initiated prematurely.
If the ash mass is increased, the system will operate with a higher inherent differential pressure, which will result in a slower increase in soot ingress.

"One must be clear that the diff." The pressure sensor can only measure the actual dust level when the filter is brand new. The older the filter, the more complex the calculation model required.

I would gradually increase the ash mass (carefully) until the regeneration level is back to around 400 km.

I don't know the specific value for your engine regarding when the DPF regeneration starts. For additive-free systems, it was something around 400 km, while in my additive-based system, it was around 1200 km.

Hello,

I'm going to set the ash content to 5 g and monitor the changes in the cycle. A range of around 400 km would also be my desired value.

Web spider.

Hello,

Unfortunately, I'm unable to enter any value other than 0g. I've also posted about this problem on the vagcomforum. However, no one there can or wants to help me.

Perhaps there's a specialist here who can help.

Problem: I'm unable to, for example, set a specific amount like 5 grams of ash.

Using VCDS, access the engine control module. Then, enter '10' or '0A' to enter the so-called 'Long Adaptation' mode. Select channel 12 for the ash adjustment. You must now enter an 8-digit hexadecimal value. If you enter '00000000', the ash mass will be set to zero. Entries like '00000500' or '00000005' also result in 0g of ash mass. So far, I haven't been able to determine what value needs to be entered to set, for example, 5g. The description shown doesn't help me.

Perhaps the reason you're not getting a response is because you're not providing your VCDS serial number when asked.

While you were typing the message, I entered the serial number...

Thomas.

Here's the corresponding part for the MSG from the log:

Address 01: Engine Control Module
Label file: DRV\03G-906-016-BRE.clb
Part number SW: 03G 906 016 GB, hardware number: 03G 906 016 GB.
Part: R4 2.0L EDC G000SG 9886.
Revision: --H02--- Serial number:
Encoding: 0020072
Operating number: WSC 06325 000 00000
VCID: 69DD46BF4062C31

No error codes found.
Readiness: 0 0 0 0 0

It refers to the serial number stored under "About..." in VCDS, as it indicates where this information is entered.

I currently have the cable in the car. The attached drawing is affixed to the cable and appears to be the serial number. However, I can double-check it later tonight. Check the windows.