Think an off-the-shelf OBD-II scanner can handle your European car’s quirks?...

https://smart-wiki.win/index.php/Why_Does_My_European_Car_Idle_Change_When_the_Air_Conditioning_Turns_On%3F

Think an off-the-shelf OBD-II scanner can handle your European car’s quirks? Not quite. These cars use manufacturer-specific codes that generic tools often miss, leading to misdiagnoses and headaches