W123 auto tranny oil change

[brunotxu]

Hello everyone, can anyone help me to change the auto tranny fluid on my '83 300TD? I am confused since my setup doesn't look like the Haynes manual or the other photos out there on the web.... normally there's an allen bolt somewhere on the pan, but mine has none! As you can see from the photos, there's a drain bolt on the torque converter but not in the usual place. Apologies if this is really simple, but I'd rather not undo the wrong bolt...

Thanks!

B

 

[brunotxu]

Just thought I would post an update to say that I have (I think) solved my own problem, with a little help from the guys at Mercedes Source...

Turns out my W123 has the slightly older 722.1 transmission, which is why it didn't match the Haynes manual. If uses a different filter and (importantly!) less fluid than the later models. There is a service guide here:

www.marekv.ee/MB/Automatic_transmission_fluid_and_filter_change.pdf