I wanted to change the oil in the gearbox, but I don't know where the oil level cap is. According to the instructions I have, it looks like this:

And in my car:

I'm guessing it's the oil filler cap:

This is the drain plug:

But I don't know where the status plug is and someone can tell me what this hole is in the box on the engine side (it is threaded):

Or maybe there is no fill cap and only the appropriate amount needs to be poured? Thank you in advance for the information.


And in my car:








I'm guessing it's the oil filler cap:

This is the drain plug:

But I don't know where the status plug is and someone can tell me what this hole is in the box on the engine side (it is threaded):

Or maybe there is no fill cap and only the appropriate amount needs to be poured? Thank you in advance for the information.