So about a month ago during a snow storm I seem to have lost reverse in my 209,000 mile 530i. This transmission is known for shearing apart its revrse drum, but I'm not sure that's the case here: when it's COLD, reverse functions at idle for a few feet. If it warms up, or if you hit the gas, there's nothing. But if it's cold, it will idle back into a parking space.
If the drum were broken, would it do this? Or is the solenoid/clutch just shot?
The car is sitting in my garage and I'm thinking about dropping the pan and changing the fluid and filter once the temps warm a bit (I'd prefer at least 20F outside) just to see what happens.
I bought the car last spring with the hopes of using it as my winter beater, but I've found that not having reverse makes driving a lot less convenient.
BTW all forward gears work as intended. It hunts for gears as good as it did, but drives just fine, going forward.