Gearbox oil and filter

[Alfieb]

Hi all
I have the 6 speed semi auto 2009 C4 grand 2.0 diesel.
I am having terrible trouble trying to get the correct oil and filter for the gearbox.
I'm told that the oil pressure changes the gears, and if filter is blocked or the oil is old, it will cause the gears to change slowly and the engine over rev during gear changes.
I've put .my reg number into europarts
and others, but it comes back with wrong info, such as 4 speed auto and a variety of different looking filters.
My reg is. GJ59WEP.
It appears that there is confusion between the gearbox and the robotic gear change device. It's the one that the high revs causes oil pressure increase and changes up to the next gear.
Any one got any ideas please?
Thanks.

[mickthemaverick]

The easiest way to resolve this would be to contact your dealer with your VIN and ask them what oil and filter you need. That way if it does turn out to be wrong you have recourse to them.