adding ATF

[Kulasstar]

Where is the fill tank to add ATF?
pics would help

[winfred]

if you don't have a tranny dipstick (most 525s after 91 didn't) you add it through a bolt hole on the left rear side of the pan under the car, take the car for a few mile drive to get it warmed up then figure out now to get under the car safely and with the car idling take the 17mm plug out and add fluid till it runs out the hole, it's now full

[whiskychaser]

May be a bit late in the day but if you have the 5HP18 gearbox, this link contains BMW procedure for filling ATF
http://www.zf.com/na/Home/M9/M12/M27/M367/5HP18.pdf