BMW X2 Transmission Nightmare: Rough Shifts & Grinding

Had a similar issue with my 2018 BMW X1 last year. The symptoms you're describing match exactly what I experienced, transmission warning, CEL, and rough shifting. Turned out it wasn't the radiator oil pressure at all. After taking it to the dealership, they diagnosed a faulty wiring harness and connector leading to the transmission control module. Some pins were corroded and the connection was intermittent. The transmission was going into limp mode as a safety measure. It was actually a much simpler fix than expected, needed a new wiring harness and connector replacement, plus a transmission control module reset. Not a huge repair job, but definitely needed experienced techs who knew what to look for. I'd suggest getting a second opinion from either the dealership or a BMW specialist. These symptoms are too specific to mess around with general mechanics. While my issue wasn't catastrophic, ignoring transmission problems can lead to much bigger headaches down the road.

That sounds exactly like what happened to my X2! So glad someone else went through this. When I had these issues, mine turned out to be a faulty wiring harness too. Can't remember if I got ripped off or not though, how much did you end up paying for yours? Has everything been working smoothly since the repair? Just asking because I've been noticing some slight hesitation during cold starts lately, wondering if it might be related.

Hey there! Happy to update you on my X1 situation. Since getting it fixed, it's been running like a dream, no more transmission drama at all! The repair was actually pretty reasonable, paid 95 € to fix what turned out to be just a dodgy cable connection to that oil pressure component. Much cheaper than I was expecting, especially after all that worry about potential transmission failure! About your cold start hesitation, mine was doing exactly the same thing before the repair, but it completely cleared up once they sorted out that wiring issue. Honestly, getting it fixed was the best decision. Haven't had a single problem with the transmission since then, and it's been over a year now. Those BMW specialists really knew their stuff, they spotted the real problem straight away instead of just guessing like my first mechanic did. If you're still getting that hesitation during cold starts, might be worth getting it checked out just to be safe. These modern BMWs can be pretty sensitive to even small electrical issues. Better to catch any problems early before they turn into something bigger, you know?

Thanks for sharing your experience! I finally took my X2 to a specialist mechanic last week. The whole ordeal was way less painful than I expected. Turned out my transmission wasn't the main culprit, it was actually a worn-out sensor and some electrical connections that needed fixing. The mechanic really knew what they were talking about and found the issue pretty quickly. The repair cost me around 200 bucks including labor, which was such a relief considering I was worried about needing a full transmission overhaul. The car's running smoothly now, and those scary warning lights are finally gone. The grinding noise completely disappeared too. Got to say, it was definitely worth getting a second opinion from someone who specializes in BMWs. They even gave the whole system a thorough check while they were at it, so I'm feeling pretty confident about the car now. Lesson learned, sometimes the simplest solution is the right one, and it pays to find a mechanic who really knows these cars!