Pump Nozzle Service: Long Life for T5 with DPF

Hello everyone!
I have a question:
"On my van (T5, manufactured in 05/2006, 2.5 TDI with a pump nozzle injection system and a particulate filter from the factory), the following happened:"
"The service indicator showed 'Service in 3000 km'. The VW dealer was not familiar with this problem and reset the instrument cluster (after performing the inspection) and programmed channel 42."
"The earliest service indicator corresponds to 30, which is based on oil quality and a service interval of 30,000 km. Since the electronics believe that an oil change has been performed, I would then be driving with the same oil for 45,000 km! "
Therefore, yesterday I changed the oil and filter and adjusted the following channels in the instrument cluster:
40 hours of operation corresponds to 13,200 km since the vehicle was first registered.
41=240 corresponds to 240 days since the initial registration.
42=15 corresponds to a minimum of 150,000 km with the same oil. Is this value set by the manufacturer?
43=50 corresponds to a maximum of 50,000 km with the same oil.
47=0: Reset the oil consumption value to zero, as the oil is new.
48=0 corresponds to setting the thermal load to zero per 1000 km, as the oil is new.
Do these settings make sense? Sorry, I'm a beginner .

I previously drove a bus with the same engine type, but without a particulate filter, and I didn't experience any problems, managing to drive approximately 30,000 km before needing a service. The driving style and the proportions of short trips, city driving, and highway driving were quite similar!
It's probably due to a change in the injection timing during the fourth stroke, which is used to regenerate the particulate filter?
Has anyone had similar experiences?
The sad thing is that there's only one type of oil approved for use with a common rail injection system and a particulate filter, and it costs a whopping €30, plus the filter and installation... (the engine takes 7.4 liters), so almost €250 every 15,000 km just for the oil – a real bargain...

Best regards, Gerd.
There are.

Since you apparently have a VAGCOM or similar device, could you please provide the part number and software version of the engine control unit?
Or a complete car scan.

Thank you.

Why? It's possible that you need to bring your car in for service after 15,000 km.
It's a flexible maintenance interval. The minimum mileage for a long-life diesel is 15,000 km.
And it's not a bad thing if the first oil change is done a little earlier.
The motor experienced greater material wear during the initial running-in phase.

Steffarn wrote:

Why? It could be correct that you need to bring your car in for service after 15,000 km.

Because the young man wants to know the data status, and he has reasons for that. Sometimes it's useful not to question everything all the time, but simply to take action.