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Transmission Fluid Change?

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Old 01-28-2010, 05:49 AM   #1
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Default Transmission Fluid Change?

Anyone done a tranny fluid change yet? I see them done for older models but haven't seen one done for the C6.
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Old 01-28-2010, 07:20 AM   #2
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Originally Posted by r1racer View Post
Anyone done a tranny fluid change yet? I see them done for older models but haven't seen one done for the C6.
its not recommended, you might create more problems for yourself, just fyi.
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Old 01-28-2010, 11:09 AM   #3
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my indy audi shop recommended it (I'm at 56k) but I have not done it so far.
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Old 01-28-2010, 11:28 AM   #4
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Why did they recommend it? Did you report an issue or did they just recommend it unsolicited?
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Old 01-28-2010, 11:32 AM   #5
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its not recommended, you might create more problems for yourself, just fyi.
I hear a flush can cause problems. I'm talking about changing the fluid (not using special machinery to flush it out).

Can someone confirm that a flush and a simple fluid change are different?
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Old 01-28-2010, 12:25 PM   #6
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I think the recommendation is to drop the pan and do a filter change with the logic being that there will be loose particles after an ATF change that get dislodged and may cause issues. A new filter should catch those.

I am planning to do it this summer on both our cars - they both have 'lifetime' AT fills. I just do not feel comfortable with this proposition because they never specify what "lifetime" means. Lifetime could very well mean "until the AT fails".
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Old 01-28-2010, 12:47 PM   #7
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I too feel like it should be done. Especially after seeing how so many of the C5's had old tranny fluid that looked like metallic paint.

Just don't know if I should do it myself or not. My biggest concern would be the fill (you have to get the temp right for an accurate fill). Also bluaparts.com doesn't sell kits for the C6. I'm wondering why.

I guess I'll just do some more research before I decide whether or not to do it myself or take it to the dealer.
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Old 01-28-2010, 01:53 PM   #8
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I got mine done twice already.

Once at 46k miles using the Blue ATF TSB
Second time at 49k miles when they changed the Torque converter.

I read that after 75k-80k miles you shouldn't bother changing it because the fluid has become slush and changing it could break your tranny.

We have the ZF (GM) tranny's in our car, or atleast in my A6 3.2. I looked up youtube videos on how to change it... seemed hard, but not that hard.
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Old 01-28-2010, 02:47 PM   #9
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Why did they recommend it? Did you report an issue or did they just recommend it unsolicited?
They just don't have faith in the so called "lifetime" fluid and have changed the transmission fluid on their own Audis. I have had no issues with the transmission though (*knock knock*).
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Old 01-28-2010, 03:14 PM   #10
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I had mine changed at 35K miles and will do it again at 70K miles. The transmission manufacturer recommneds getting it changed every 45K miles, even though Audi claims it is lifetime fluid.
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Old 01-28-2010, 03:56 PM   #11
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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
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Old 01-28-2010, 04:23 PM   #12
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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 canít 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.

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Old 01-28-2010, 04:29 PM   #13
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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.
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Old 01-28-2010, 07:17 PM   #14
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For reference, my audi indy quoted me around $500 for a trans flush.
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Old 01-28-2010, 09:26 PM   #15
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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.
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Old 01-29-2010, 06:06 PM   #16
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Quote:
Originally Posted by freefaller25 View Post
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 canít 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
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.

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Old 01-29-2010, 07:38 PM   #17
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I change it every 100k
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Old 02-01-2010, 11:45 AM   #18
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Originally Posted by r1racer View Post
I too feel like it should be done. Especially after seeing how so many of the C5's had old tranny fluid that looked like metallic paint.

Just don't know if I should do it myself or not. My biggest concern would be the fill (you have to get the temp right for an accurate fill). Also bluaparts.com doesn't sell kits for the C6. I'm wondering why.

I guess I'll just do some more research before I decide whether or not to do it myself or take it to the dealer.
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
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Old 02-01-2010, 06:24 PM   #19
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Does anyone have the exact ZF tiptronic 6-sp model #?
http://www.zf.com/na/content/en/impo...ent/R___D.html
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.
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Old 02-02-2010, 08:32 AM   #20
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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.
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
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Old 02-02-2010, 08:32 AM
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32, 70k, a4, a6, audi, b7, change, fluid, flush, fuild, miles, s4, tranny, transaxle, transmission


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