Changing transmission oil in Citroen C3 2011 1.4 HDI

[French Divas]

Hi there,

I'm planning to change gearbox oil of the C1 and DS5 this month. For C1 there are numerous video's on the net, but DS5 only automatic gearbox.
So, can anybody tell me where the fill and drain plug are on a THP200, 6-gear manual gearbox?
VIN: VF7**************[VIN obfuscated, can be read by forum staff]

Bart