Very bad news
How long did you have it and how often did you replace the oil?
How much mileage did it have in total?
If you read the regular maintenance in the owners manual, it is just fluid changes and tick boxes
I have the impression that these cars, even if they are finely tuned, they have very long service intervals
So over the years, there is a lot of dirt building up
Somewhere I noticed that the Australian cars get 10K km service intervals and I bet this is not just because of the heat and the dust
In the UK, I think only Toyota has 10K miles service intervals and everybody else goes for much longer intervals