How do you refill or change the transmission oil in a BMW m50 auto trans with no dip stick?

In order to check or change trans fluid on BMW vehicles with no dipstick a hoist or set of ramps is needed. Remove upper plug in drain pan under the vehicle. make sure vehicle is running for level inspections. Do not run vehicle if draining fluid!

proper level of oil when vehicle running is level with opening in side of trans oil pan.