Generic OBD-II scanners might read basic codes, but European cars in Malaysia...

https://wiki-velo.win/index.php/BMW,_Audi,_Mercedes,_Volkswagen_-_Which_Brands_Need_the_Most_Coding%3F

Generic OBD-II scanners might read basic codes, but European cars in Malaysia use manufacturer-specific data that only specialist tools can unlock. Without proper diagnostics, misreads lead to unnecessary repairs or missed issues