Check here for the part #'s
http://www.realoem.com/bmw/showparts...79&hg=63&fg=25
and put those numbers in here for the best pricing
http://www.mileoneparts.com/partloca...?siteid=214336
and the procedure for replacing bulbs
http://bmwe34.net/e34main/maintenanc...Back_light.htm
Am hoping you're in the US and you've got a US spec Touring. Guessed about a 6/93 build date to look up the part numbers, but I don't think those are any different from one Touring to the next.
Cosmos Black/Black 1995 540iA M-Sport
BMW Individual Exclusive Edition, 1 of 65 total, 9/25/95 Build