140 000 Miles ???.... check if the engine is running ,,, and if it does , see if transmition shifts in all the gears
But really i wouldnt buy automatic with this kind of mileage .... i would recomend you to try and find manual.... if you dont have too much money its not worth buying a bmw with really high mileage, i m not saying they cant take it but who knows , better be safe then sorry cuz if something series gets ****ed the car will end up sitting on your driveway for a long time .... i know because i ve been in this ****ed up situation before

.. my 540 has 305000km already and its still going strong without any series problems....
Anyways good luck ....