iang5 wrote:
Be good to know what option you take, i.e DIY or the £190 garage option. Mine is an auto too, hence keen to know how it goes, the cost, the ease of the job and the results thereafter.
It's not a difficult job, certainly on the 968.
This is my post from 2014:
blackadder30 wrote:
ATF and filter change today...
The drain plug came undone with a nice 'click' and the old ATF was clean and clear with a ruby red tint to it so this may have been done not to long back but as the car had virtually no paperwork with it... good idea to change everything anyway.... however some heathen PO used a Philips headed bolt for the ATF sump... other 3 are 10mm nuts

ATF and filter change done and refilled to correct 80 degC level.... could I get the quick fill fitting undone? Not a chance

it was stuck solid..... and my hand driven fuel pump couldnt deal with the viscosity of the ATF and simply gave up the ghost....

Filled using length of PVC hose into the top of the plastic reservoir at the rear of the sump... dead easy

Now runs like a dream, nice and quiet smooth changes moving up to 3rd at 29mph and to 4th at 40mph, back down to 3rd at 31mph and down to 2nd at 20mph....

Still got my rattle at start up though grrrrrr
Final note - this is a first ever for me changing gearbox oil and filter so feeling pretty chuffed tonight 
Loosen things off first before fully undoing everything - especially the filler plug!! Have a catch tray for when you take the sump off as some oil remains in the sump. The filter is then between the sump and the solenoids in the bottom of the 'box.
Workshop Manual here for pre 87 cars:
http://www.9ss1.dk/porsche944/garage/vol2/vol2.htmlAuto details start at page 37-01
Details on testing fluid levels are at 37-13
Changing the ATF and filter are at 38-01
Good luck!