H150F gearbox in a 200 - fill plug question (1 Viewer)

[TheComedian]

Hi together, since the 200 section is mostly US based I came over with a small question.
I run a 200 series with the H150F gearbox mostly known from the 80 series (as I know hehe) and did a oil change today.
So online I saw informations that it takes 3l to fill up and I have two upper plugs at this gearbox. One is a bit higher and on the RH side like the drain plug and has (in my case, who knows what have been done here before) the same 24mm plug. The other one on the LH side is a bit lower and has a very big torx.
So I choose the RH side plug because it shared the same socket but in the end I filled something like 3.1 to 3.2 liters into the gearbox till it started to flow out of the hole. So now I am a little bit worried if I got the right fill plug.

Maybe someone can help

added a picture

 

[mudgudgeon]

Fill plug is on the left side. The are other plugs that are higher.
It would have been a 24mm hex from the factory, but may have been changed

Some have detent springs and balls in them.

If you overfill, it increases drag in the gearbox and potentially more heat.

 

[TheComedian]

Thank you for the info. So yeah looks like the po chabged them by accident. I guess the plug with the torx 55 and the writing „DO NOT REMOVE“ should be at the spot above the drain plug.
Removed it and something like the .2l I put too much in it came out. Should be fine now.