[BONZ99]

How do you drain the gas from a '91 850I without having to remove the gas tank. Is there a drain plug?

 

[marti5]

Im not sure if you have a drain plug or not on your model, easy way have a look underneath, it looks like a bolt.
If you havent.....undo the fuel line up front in the engine bay or after the fuel filter and direct wire the fuel pump and it will pump out.

 

[anthonyrossitto]

mine drains in my driveway every night.