Why is your BMW 730i showing engine oil pressure low?

Why is your BMW 730i showing engine oil pressure low?
Check the oil "level" in your engine....a low oil level will cause low oil preasure, especially when the engine is "idling" Find the "oil dipstick" located near the front of the engine....pull it out...wipe it off with a rag...put it back in the engine... pull it out and see where the oil "level" is at the bottom of the dipstick...depending on how much oil is "showing" on the dipstick, will deterime if oil needs to be added......each engine is different as to the "full" capacity but generally, if the oil level is at or slightly below the "add" mark, you would be safe to add 1 quart of the reccomended oil you are using for your engine. High millage, engine wear, low viscosity and or "dirty" engine oil, etc. will also lead to a lower oil preasure reading.