4motion - Can somebody a tell me where I can find the filler and level plugs for the gear and bevel box

[Unimog]

Can somebody a tell me where I can find the filler and level plugs for the gear and bevel box on my 2017 4 motion. I would like to check the oil levels are correct. Thanks

 

[Pauly]

Gearbox doesnt have sight glass, its an empty and refill job