Generic OBD-II scanners might give you a basic code, but European cars often...

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

Generic OBD-II scanners might give you a basic code, but European cars often use manufacturer-specific diagnostics you just can’t miss. Plus, the risk of counterfeit parts is real and can cause more harm than good