Replace gearbox or electrical fault?
I've got an automatic 2003 Mini Cooper which for the last two months has had an intermittent problem with only being able to reach 2nd gear (reverse is fine). At first, car would run fine on long journeys, then problem would occasionally occur after short journeys. This got progressively worse so took it into BMW for a look.
BMW advised that the DSC needed to be replaced, which was done, fixed the problem for a week or so, then it reoccurred. It has since been in twice for 'reprogramming' - once again, fixed the problem only for about a week. After second breakdown, pulled it into a local garage who said the battery needed replacing (was the original factory fitted one, so not surprising). After changing the battery, car no longer goes above 2nd gear at all. Got it towed into BMW who tried to reset the computer again, but they've given up on it. They have suggested it 'might' be the gearbox.
I'm keen to get the car fixed rather than scrap it, so wondered if anyone can suggest whether the above symptoms (running only in 1st & 2nd gear) is an indicator that a new gearbox might be needed. I'd assumed that a knackered gearbox would make some kind of noise or stop working altogether, rather than still work some of the time.
Any help with the above would be greatly appreciated, as don't want to replace the gearbox if it could be an electrical/computer problem.