Alright, this one's got me properly stumped and I'm hoping someone here has been down this road before. I've got a 2014 M135i that runs absolutely beautifully 90% of the time, but I've noticed a really strange pattern where it starts idling rough and almost stalling about five minutes after I fill up the tank – and it only happens for the first couple of drives after refueling, then it settles down like nothing ever happened. I initially thought it could be bad fuel, but I've tried different stations and even switched to premium only, and the issue keeps coming back like clockwork. I've been digging through forums and some people mention the charcoal canister or a purge valve issue, while others say it could be the fuel pressure sensor acting up. I'm honestly leaning towards taking it to a specialist who deals with these N55 engines daily, and I've been looking at https://exoticautoservices.ae/bmw/bmw-repair-abu-dhabi/ to get a feel for what a proper diagnostic should involve before I book it anywhere. The thing is, I'm a bit paranoid about leaving my car with just any workshop because I've heard horror stories about people getting overcharged for parts that didn't even need replacing. Has anyone dealt with this specific refueling idle issue and actually fixed it? Also, would a standard OBD scanner even pick up intermittent faults like this, or do I need someone with proper BMW ISTA software to really get to the bottom of it? Really appreciate any insights because this is driving me slowly insane every time I need to fill up.