Automatic Trans Fill & Drain bolts? Same or not?
 

Are the Drain and Fill bolts/plugs on the 97 318ti automatic trans pan the same size? Interchangeable? I can’t seem to find a new one (fill plug) listed at parts houses. They all say Drain plug...18x24x1.5mm. The fill plug is a 20x14x1.5mm also called M30? The seals for each are different sizes. I rounded up the edges on mine, using a 17mm boxed end. I’m almost positive it’s never been off the car. I have the car on jack stands and I’m under it trying my best with my torn rotator cuff shoulder. I want to replace the fill plug if I can ever get it off. Part of my problem is I don’t have a lot of room (I’m large) and not much strength in right arm now, just pain. I replaced the ATF cooler and lost fluid, now I’m trying to top it off. I’m just about to resort to Vise-grips. I pretty much used my last nerve for today, now I’ve switched to a bit of Bourbon to help with my research. Sorry for the rant, just a little pissed... if anyone can sort me out, if both plugs are the same or not and where I can find the FILL plug for 97 318ti automatic.
Thanks, signed Oldman on last nerve...

I have a 97 tranny in the garage I’ll look at later this morning for you.


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That would be great! If I knew they were interchangeable, or not, that would sure help. I guess I can’t understand why NO supplier offers the “fill”, only the “drain”. Also, if you could tell me if it takes a 11mm wrench or not? Thank you, BlackBMWs

17mm fill, 19mm drain


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Thanks BlackBMWs. Still baffles me why I can’t find a fill. I guess I’ll have to go to the dealer. Thanks again

Pelican parts had one, I guess I just didn’t look hard enough.