DSG dq500 oil change top fill?

[Skager71]

Does anyone know why the DSG transmission should be filled from the underneath and not top filled?
I have a fill plug on the backside on my 2017 Dsg above the diff.

Did a test. Removed the drain/fill plug and lever tube and drained the dsg. Then filled some dsg oil in that top fill hole and oil very soon oil poured out from the drain/fill.

Volkswagen does not even mention that fill plug in their workshop manual!?!
Perhaps not all dsg has this fill plug?

 

[Skager71]

Youtube shorts of filling dsg from top plug

 

[Dellmassive]

Pass,

But the official word is drain from the bottom with the fill level tube removed.

Then re fill from below with the level tube fitted.

Get dsg to temp and cycle gears etc to flush mechtronic and check level.

Not sure about an upper plug?

 

[jayc001]

I filled dq500 in my t5.1 through the filter housing. Worked OK but was slow.