Avantt007

wait a minute...i believe the C6 A6 has a sealed transmission and don't need a "flush". Someone correct me here, but I don't believe tranny oil is listed in our scheduled maintenance manual

freefaller25

I had mine changed at 50K and will do it again around 100K. The shop used BG equipment to perform a flush type change (tap into the cooler lines). The final level tweaking was done using their VAC-COM and the Audi procedure. Cost was a little under 300. No problems after 10K miles, and maybe it shifts smoother after but I can’t say for sure. I did have the problem of jumping RPM when coasting with a cold transmission and it was much better after the fluid change. I almost though it went away until it got colder out.

I saw the fluid that came out and it looked terrible (brown and muddy). It did not feel slick when I rubbed it between my fingers. Lifetime fluid means there will be fluid in the transmission when it breaks, not that the fluid will not be a contributing factor to the transmission breaking. Just my 2 cents, I am sure the transmission could drop out of my car tomorrow.

Tony

r1racer

I guess I'll just take it to the dealer and let them do it along with a coolant flush.

Do you guys think at 65k I should even bother (not trying to f^ck anything up) even though the car is under warranty.

RDD

For reference, my audi indy quoted me around $500 for a trans flush.

A6Gary

Only the CVT ATF is listed in the maintenance schedule to be changed at 35K/75K miles. But that doesn't mean you shouldn't change the ATF because the fluid does degrade over time/mileage due to heat, contamination, etc.

oaktreelimb

Little under $300 to flush the transmission fluid in you 2006 A6 Avant? What kind of ATF did they use? To flush your A6 transmission properly, they need to use at least 10 quarts of ATF. The Audi gold ATF for your car is around $30/quart, blue AFT is above $80/quart.
Drain and refill is around 5 quarts.

Brozee

I change it every 100k

mystrodo

I'm still not convinced I needed the $80qt blue but I did the change anyway at 41K simply because I'd read the first change is the most important on a *new hydraulic system but I wish I'd had the Audi shop save a vile of it for independent testing. Anyway..here's a ZF link that might be helpful, I've been tempted to ask them about what compatible full syn fluids can be used. My change used about double the fluid for a full clean flush so be prepared...thank goodness it was a TSB that got under the wire. The next change say at 100k might be a completely different fluid and transmission shop.
Does anyone have the exact ZF tiptronic 6-sp model #?
http://www.zf.com/na/content/en/impo...ent/R___D.html

audi bug

Mystrodo,
My 06 A6 3.2 Quattro has ZF6HP19A

I was seriously thinking about replacing transmission fluid around 55K but decided not to do it because I am too cheap to spend $1,000 every 50k to 60k. I rather not change the fluid than use non-OEM fluid.

mystrodo

Here's a slow PDF regarding OEM ZF Fluid..looks like LifeguardFluid6 Plus for the ZF6HP19A.
http://www.zf.com/na/content/media/i..._PC_102307.pdf
I've read LG6Plus is a relabled Pentosin brand

If you ever deside to do the change here's a writeup..BMW but basically the same procedure we've got posted here somewhere:
http://forums.5series.net/topic/8812...eb7a78115c22f5