gearbox oil procedure

A8L Chick · #1 11th January 2013, 05:10 PM

How much ATF fluid should one replace when the whole sump is removed from a D3 3.0 TDI gearbox???
Would it be wise to buy say 7 litres???

Bex

carterleeds · #2 11th January 2013, 05:48 PM

as far as im aware the whole gearbox takes 10 litres, but we only change 6 litres, unless a full drain and flush is carried out then, you will need 10 litre's.

snapdragon · #3 12th January 2013, 01:19 PM

Yes, I read many time ~5.5 litres gets changed so buy six.

A8L Chick · #4 13th January 2013, 12:28 AM

Super. Thanks Guys

Any way of getting the update to run the blue ATF in the south east without going to a main dealer

carterleeds · #5 13th January 2013, 12:06 PM

Quote:

Originally Posted by A8L Chick

Super. Thanks Guys

Any way of getting the update to run the blue ATF in the south east without going to a main dealer

yep its only dealer that can flash your gearbox, vcds dont work and no one out there seems to be able to atm. well thats what ive been told. but i dont really see the difference in fluids anyways especially if im putting brand new fluid in.

snapdragon · #6 13th January 2013, 07:48 PM

Quote:

Originally Posted by carterleeds

but i dont really see the difference in fluids anyways especially if im putting brand new fluid in.

Something to do with the friction modifiers and the torque converter (TC) regulator clutch. This gearbox can have TC open, TC closed, or TC regulated (slipping). Around town the clutch is designed to be slipping most of the time and I have read it can judder or make a noise with the wrong fluid. I don't think there's anything wrong with trying another fluid as long as it drives the same or better than before.

sarg · #7 14th January 2013, 09:39 AM

my experience of doing this on a D2 is that you need roughly TWICE the capacity to flush out the old fluid properly as you will lose some of the new fluid flushing out the old - it's impossible to only flush out old fluid, so I'd say you need to buy double the capacity

carterleeds · #8 14th January 2013, 11:58 AM

Quote:

Originally Posted by snapdragon

Something to do with the friction modifiers and the torque converter (TC) regulator clutch. This gearbox can have TC open, TC closed, or TC regulated (slipping). Around town the clutch is designed to be slipping most of the time and I have read it can judder or make a noise with the wrong fluid. I don't think there's anything wrong with trying another fluid as long as it drives the same or better than before.

oh no sorry i meant, once the original fluid was changed out for the same new fluid, it dosent make a difference as to what quality or type, because the fluid would be new so working to best it can. like replacing the gold fluid for the blue, wouldnt make a difference in my eyes due to the fact that whenever new fluids are replaced they work awesome lol. well thats my opinion.

like when i change engine oil on my 04 polos, i put cheap oil from your local parts shop because i make sure it gets changed every year regardless, so by the time the goodness has ran out, ive already changed it. you could say better oil less changes but its just like audi saying lifetime ATF never needs to be changed.

however i did put castrol sport in my mini because of the power and that still gets changed out every year, and in my m3 i used millers which is the best but i still changed that out twice in the year i had it.

i guess you can just tell when it needs doing and what works best tbh. so i guess if people find blue is better than gold without trying new gold in the first place thats just dopy. however if they have tried gold and then moved to blue and feel a difference then good for them.

hope i cleared that up lol

and as for these gearboxes bludy hell is all i have to say lol