Camshaft, 1st stage, last stroke

The topic of the 1Z crankshaft screw is very popular among enthusiasts
and therefore, here is my first and last contribution to this topic.
At KM 280,000, I experienced the typical symptoms, such as poor starting behavior.
At my trusted mechanic's, the KW strut was professionally re-aligned and a new KW wheel with its corresponding screw was installed.
That was almost exactly 100,000 km.
On the road, and approximately 500 km after the (almost) interval-based timing belt replacement, the familiar symptoms reappeared.
Gave the car, with 380,000 km on the odometer, to a major VAG (Volkswagen Group) company in the Ruhr area.
They installed a new KW strut with the corresponding bolt; without needing to be machined, the KW strut itself was in good condition.
Due to the previous ZR (Z-axis rotation) change, I inquired whether it could be related in a causal way. However, several experts disagreed.
Well, 4 weeks and 10,000km = 6 months later, the crankshaft snapped, and this happened to a car that was still in its prime, with 390,000km and 15 years of age. It was truly the end.

For those interested in lifespan statistics, it should be noted that:
390,000 km with original coupling despite frequent trailer use.
Full power and top speed were maintained until the end.
Without defects in LMM, ESP, turbo, injectors or other critical components.
Approximately every 100,000 km, the intercooler pressure regulator needed to be replaced, and I would occasionally check the functionality of the wastegate on the valve stem.
Overall, a very reliable engine, which probably died due to some construction "psychopaths" who made the auxiliary units with a 10KW power intake run by this 16mm screw.
Starting next week, I'll be driving a 320D E91.
Let's see if there are any opportunities for contributions related to this engine.

See you then.

PS: Since the Ruhrgebietswerkstatt has not entered into an agreement with me regarding liability and is now attempting to wriggle out of the situation using excuses, delays, and wear-and-tear tactics, the outcome of this matter now rests with my lawyer!

6 Months Later:
The Bochum District Court proposed a settlement, which would have resulted in a payment of 500,-€ to me.
To bring the matter to a close, I took the money from the VW/AUDI operation in Bochum - Laer.
Interestingly, a former VAG mechanic told me that the issue was likely caused by improperly tightening the screw with a impact wrench.
However, proving this is almost impossible.
The car then eventually drove onto a trailer heading east.