I've got a 2015 750Li with the ZF 8HP and recently it started shuddering when accelerating gently around 60 km/h, which I've read could be the torque converter clutch or maybe just old fluid. The dealer wants a fortune just to drop the pan, so I've been looking at independent options and came across this site https://gearboxrepairsharjah.ae/brands/bmw/ but I can't find any real customer reviews anywhere. Has anyone here actually used these guys for a BMW transmission issue, and did they properly diagnose the problem or just try to sell you a full rebuild? I'm in Abu Dhabi so it's a bit of a drive, but if they're good it might be worth it. Appreciate any honest experiences before I make the trip.