Peter 
2002 BMW 7 Series Sedan 745i 4dr Sedan (4.4L 8cyl 6A)
No BMW Support
 When I purchased this car, it was covered under the extended warranty package. Notwithstanding, the car was in the service bay every two weeks, fixing a sensor, rebooting the computer,checking a warning light. At six years two months and 128,000 KM or post-warranty coverage a new transmission was required; a second transmission tune-up(??) at 133,000 km. The dealerships are at a loss to completely repair some of the noises under the hood: it has become a very expensive guessing game. When there was difficulty starting the car, an alternator and new battery were recommended. An independent garage, they replaced the starter at a third the labor/parts charge. BMW shrugs & smiles and I get poorer!