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

https://dlf-ne.org/e90-bmw-common-wiring-harness-issue-what-symptoms-show-up/

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