159 Q4 V6 Ti Gearbox

[GTR27]

Oil for my gearbox/diff has finally come in and was wondering if someone has a parts / exploded view of the gearbox for the drain and fill points?

Also same thing for the rear diff.

I have seen the gearbox drain on the bottom when doing half the service last week, so i'm comfortable with that, but if anyone could help me out with a picture or parts view that'd be awesome!

[Colin Edwards]

To get easier access to the front transaxle filler plug requires removal of the battery.  And also the battery cradle as I remember.  The filler plug can then be attacked  - however youll probably need a 300mm or longer 1/2" extension to reach down to the filler plug. 
I found the 75w85 oil did help a lot but doesn't cure the stiff shifting when cold. 

[bonno]

Hi GTR27
You could also try the removal of plug from underside of vehicle (suitable access) in lieu of removal of battery and tray and use a transfer pump to fill the gearbox oil.
Regards
bonno

[GTR27]

I've found the plugs - will def require removal of battery tray and battery, plus crawling under the thing.

Does the drain plug have a crush washer? Figure if I can get a generic one I'll put a fresh one on for reinstall. The drain and fill plugs look in ok condition.

[Colin Edwards]

Mine had a copper washer.  I re-used after annealing.