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

https://kylerssplendidperspectives.nexorafield.com/posts/audi-vs-volkswagen-specialist-workshop-can-the-same-shop-handle-both

Generic OBD-II scanners can miss crucial manufacturer-specific codes on European cars, leading to misdiagnoses and repeat trips. Plus, sourcing parts comes with the risk of counterfeits that affect your car’s performance