Regarding transmission oil change...
#2
Auto or Manual? For a manual transmission, I would not hesitate to change it. I replaced mine at 150k and shifting was so much smoother. I used Redline MTL, which is a fully synthetic GL-4 oil safe for the yellow metals in the syncros.
There are differing camps on if you should change out the atf on a high mileage auto tranny. Changing the fluid in an auto is also a little more involved as you need to use VAG-COM to check that the fluid level is correct at the right temp, etc.
Since you have a quattro, you may also want to concider changing the rear diff oil as well. Any gear oil will be fine. The auto tranny also has a separate drain for the center diff as it uses gear oil rather than atf.
There are differing camps on if you should change out the atf on a high mileage auto tranny. Changing the fluid in an auto is also a little more involved as you need to use VAG-COM to check that the fluid level is correct at the right temp, etc.
Since you have a quattro, you may also want to concider changing the rear diff oil as well. Any gear oil will be fine. The auto tranny also has a separate drain for the center diff as it uses gear oil rather than atf.
#4
Filter and fluid. Check this kit for $139. You don't have to have a VAG-COM. But you do have to check the level when the ATF is less than 30C. W/O a VAG-COM, you can just buy a cheap, digital thermometer at Home Depot...the kind with the wire and probe that hangs out your window. Let it sit overnight so the trans cools down well. Then just snake that sensor up into the fill hole and make sure it's in the ATF. When the temp is right and you've run it through all the gears, fill till it runs out the fill hole.
#5
Some more info on changing the ATF on these cars:
http://forums.audiworld.com/showthread.php?t=2797651
[url]http://www.audiction.com/audi-maintenance/audi-01v-tipronic-transmission-fluid-change/[url]
I think that the center differential in an automatic holds a little less than a quart of gear oil. The rear differential holds 2 quarts. Might as well change that while you're at it.
http://forums.audiworld.com/showthread.php?t=2797651
[url]http://www.audiction.com/audi-maintenance/audi-01v-tipronic-transmission-fluid-change/[url]
I think that the center differential in an automatic holds a little less than a quart of gear oil. The rear differential holds 2 quarts. Might as well change that while you're at it.
#8
I've never worked on one of the auto transmissions in these cars, but there should be drain plug on the bottom of the transmission where the rear drive shaft exits, and a fill plug above it toward the passenger side. On the manual cars, the center diff shares fluid with the transmission, so I haven't had to go and find it.
Be sure to remove the fill plug first so that you know that you can replace the oil that you drain. The rear diff plugs (drain and fill) are 10mm allen head if I remember correctly. The center diff is probably something similar.
Be sure to remove the fill plug first so that you know that you can replace the oil that you drain. The rear diff plugs (drain and fill) are 10mm allen head if I remember correctly. The center diff is probably something similar.
#10
That's where the debate begins. Some say that changing the ATF on high mileage cars can do more harm than good as it can dislodge debris that has built up. Others argue that the new fluid alone should be better an prolong its life.
As for what you should do, I have no data to support either claim, so it's up to you. You should also know that Audi will claim that the transmission fluid is a "lifetime" fluid and should never need to be changed.
Good job on changing the rear diff. Was yours as much of a stinky mess as mine was? The oil that came out of mine was more like maple syrup that smelled like fermented dill pickles mixed with monkey ****.
As for what you should do, I have no data to support either claim, so it's up to you. You should also know that Audi will claim that the transmission fluid is a "lifetime" fluid and should never need to be changed.
Good job on changing the rear diff. Was yours as much of a stinky mess as mine was? The oil that came out of mine was more like maple syrup that smelled like fermented dill pickles mixed with monkey ****.