Gearbox oil change

[Adam230K]

I'm going to change the gearbox oil soon... i just wanted to know 2 things;

How do i know its full?

Is there a filter involved that needs changing?

I heard that it should be filled up from the side plug until it starts pouring out of it (or something like that). Correct?

 

[rajinder_1]

Hi,

You measure what you take out and then use a gear box dipstick to top up if needed.

yes you will need to buy a filter, rubber seal, and a magnet which should all be removed and replaced.

you should fill it where the gearbox dipstick goes in with a funnell.

Raj

 

[call4benz]

Hi,
Assuming your car is a manual, you are right. Just drain oil by removing the 14mm Allen screw and refill till reaches the lower curve of the filler screw hole also 14mm Allen type at the side of the transmission. (In W202 it’s a bit pain to remove the filler screw without the MB tool as no much gap between the tunnel and the transmission). No filter replacement.
call4benz

 

[andy27168]

Hi,

You measure what you take out and then use a gear box dipstick to top up if needed.

yes you will need to buy a filter, rubber seal, and a magnet which should all be removed and replaced.

you should fill it where the gearbox dipstick goes in with a funnell.

Raj

Rage is referring to a manual gearbox.
As far as I,m aware it is filled from the side plug and is full when it comes out of side plug hole, as you say. No filter in a manual box.
But ensure you can undue the filler plug first before draining the present oil, when I did mine there seemed to be a discrepancy on what oil to use and what was in the gearbox (local motor factors application list) so I bit the bullet and bought Gen. MB oil for it better to be safe than sorry, and ensure I got the right stuff.