Generic OBD-II scanners can miss crucial manufacturer-specific codes on...

https://dlf-ne.org/how-do-i-know-if-a-workshop-really-specializes-in-continental-cars/

Generic OBD-II scanners can miss crucial manufacturer-specific codes on European cars, leading to misdiagnoses and unnecessary repairs. Plus, the risk of counterfeit parts is real, which can affect your car’s performance and safety