Finally got my car back yesterday after 25 days. They pulled the engine and transmission out. Replaced all exhaust valves on bank 2, the timing chains, engine cooler lines and did an oil change. Total cost: $13,105.32. BMWNA paid 75% of that. Part of the job required them to replace every seal on the engine except for the valve seals on bank 1. I paid an additional $2080.14 for that. Total repair cost came to $15,185.46. My bill was $5356.27.
An hour after I left the dealership I got another Drivetrain Malfunction. I took the car back and now I have a fuel sensor out. The dealership is fixing it for the cost of the part, no labor charge. Unfortunately, the part won't be in until Monday. I may have the car back Tuesday. When I pick it up it's going to my mechanic to have the front thrust arm bushings, alternator belt tensioner pully replaced and both front door panels replaced. After that, new Pirelli P Zero are going on. That's another $4500 in costs.
Since the last week of May when the CCP was done, this car will have had almost $28,000 in repairs and maintenance. The dealership is trying to sell me a 2018 M760i for $187000 and will only give my $15000 on a trade in. I love these cars, but I'm seriously considering going a different route with my next car.