mowermech wrote:
The issue is, does the transmission output shaft get lubricated when the vehicle is moving in neutral without the engine running?
If it does, then you are good to go.
If it does not, then eventually the output shaft bearing and seal will be damaged due to lack of lube. It may take a while, but it WILL happen! some say it can be solved by towing with the engine running. that is probably true, but I would not do it. Some say it can be solved by installing an elbow in the transmission fill port, pointing up, and filling the transmission to the top of the elbow, thus increasing the lubricant level in the transmission. Yes, on some transmissions that does work, although it may cause leaks. I do not know if it will work with a BMW.
What does the Owners Manual say about towing?
Or, just put it in top gear so they both spin for sure? I doubt you'd exceed max engine rpm in 5th behind a motorhome, but I guess some people are in a hurry. :)