Generic OBD-II scanners can only tell part of the story when it comes to...

https://www.automotiveaddicts.com/119095/why-european-cars-need-a-different-kind-of-mechanic-than-usual-workshops

Generic OBD-II scanners can only tell part of the story when it comes to European cars in Malaysia. Manufacturer-specific codes often need specialist tools to diagnose accurately. Plus, sourcing genuine parts is tricky—counterfeits are everywhere