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Old 05-09-2012, 11:31 AM   #1
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Default 2005 Audi A6 c6 Transmission oil change.

Hi,
Recently I start noticing that gear shifting is not the same it used to be, also hear much more noise from transmission while driving. It sounds like running cold car in winter season. I have no clue where is trans dipstick for this car to check oil level and color/smell. Iím sure many of you already done your tranny oil flush. I have done twice on my 1999 4runner so I feel comfortable thinking about doing it on my 2005+ A6 3.2 Quattro.
Please guide me to any howto or pictures. I recently bough VAG-COM for my successful rear brake job so Iím partially equipped minus repair manual.
All help will be appreciated.
135k so far not sure if trany oil change was ever done before i bought at 82k.

AliÖ
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Old 05-09-2012, 12:45 PM   #2
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There is no dipstick on these transmissions, as Audi considers it a 'lifetime' fluid, sealed unit.

That's pretty far from true, though. In my case, I was at 127k miles, and started having some issues with shifting and the transmission 'juddering' - was more of a 'feeling', which then progressively got worse.

As I've detailed in other posts, the dealer wasn't a whole lot of help (since the car is out of warranty), and I wasn't willing to pay the 800 bucks for them to ignore the Audi tech bulletin on the exact issue (they were playing dumb), and based on member 'Turkeybaster's research, and with the help of the Ross-Tech VCDS, I did a fluid change myself, using Ford Mercon SP fluid.

Within about 10 miles, all shifting issues and juddering were gone, and I had only changed out about 5 quarts of fluid. 7k miles later, all is still well, but I DO want to order up a filter and gasket, and do the job properly.

If $ is not too much of a concern or you aren't mechanically inclined, have your dealer check to see if any software for the transmission is needing an update, and have them do a filter and fluid change. It could be costly, anywhere from 500 to 800 USD. And they might opine that it doesn't need it, since it is 'sealed and lifetime fluid'.

Member Kevin Gary here has a link to the various tech updates at the bottom of his posts. They are a good read, and show what most 2005 owners have had or are likely to have to deal with.

-Darryl
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Old 05-09-2012, 03:29 PM   #3
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I change my ATF every 40k. Check out the transmission TSBs in the library linked in my signature.
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C6 TSB Library link (Thanks to Dr. Cold for his help in setting this up) http://uberlame.com/a6_tsb/
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Old 05-10-2012, 04:56 AM   #4
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Mine's a 2007 and approaching 100k miles. I want to drop the pan and do a filter/gasket change with the ATF change.

The problem is that there are a few incompatible Audi ATF fluids, and the local dealer urged not to touch it because it's a lifetime fluid and they did not stock ATF for Audis.

How can one determine which fluid goes with which model and where to buy it?
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Old 05-10-2012, 08:15 AM   #5
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Only 08 and later uses newer fluid. The color of the oil is different greatly so you will be able to tell the moment you drain your fluid. DO NOT BUY any 3rd party fluid. Regardless whatever people posted online, they are NOT the same.
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Old 05-10-2012, 10:03 AM   #6
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Quote:
Originally Posted by zzz4 View Post
Mine's a 2007 and approaching 100k miles. I want to drop the pan and do a filter/gasket change with the ATF change.

The problem is that there are a few incompatible Audi ATF fluids, and the local dealer urged not to touch it because it's a lifetime fluid and they did not stock ATF for Audis.

How can one determine which fluid goes with which model and where to buy it?
best is visual check and also check sw version on the at with vcds
/H
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Old 05-10-2012, 03:27 PM   #7
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Quote:
Originally Posted by zzz4 View Post
Mine's a 2007 and approaching 100k miles. I want to drop the pan and do a filter/gasket change with the ATF change.

The problem is that there are a few incompatible Audi ATF fluids, and the local dealer urged not to touch it because it's a lifetime fluid and they did not stock ATF for Audis.

How can one determine which fluid goes with which model and where to buy it?
There is a transmission TSB in the TSB library linked in my signature with the fluid part number and the TCM software update.
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RIP - 2005 A6 4.2 - (February 2005 - August 2014) (142,000 miles)

C6 TSB Library link (Thanks to Dr. Cold for his help in setting this up) http://uberlame.com/a6_tsb/
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Old 08-16-2012, 11:42 AM   #8
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Last week i took a oil sample from my A6 transmission and it is BROWN. My VAG says Revision: H01, that i have no clue.


Address 02: Auto Trans Labels: 09L-927-760.lbl
Part No SW: 4F1 910 156 H HW: 09L 927 156
Component: AG6 09L 3.2 FSI USA 0020
Revision: --H01--- Serial number: 0088974
Coding: 0000002
Shop #: WSC 02331 785 00200
VCID: 29594B5380E2031

No fault code found.


Based on all feedback and other posting in this forum, I'm going to buy Mercon SP and drain and refill trany oil on my A6.
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Old 08-16-2012, 12:17 PM   #9
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your software is version 0020 which is the old software

Address 02: Auto Trans Labels: 09L-927-760.lbl
Part No SW: 4F1 910 156 H HW: 09L 927 156
Component: AG6 09L 3.2 FSI USA 0020
Revision: --H01--- Serial number: 0088974
Coding: 0000002
Shop #: WSC 02331 785 00200
VCID: 29594B5380E2031OR]
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Old 08-16-2012, 04:53 PM   #10
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Funny, I changed mine without Audi fluid and its working as good or better than ever. Mercon SP in mine too. No Vag-Com used either. Didn't change it the first time till 145,000 miles. Some of us just have to prove the world is not flat. Guess that's just the way I roll.

Going to get changed again at 150,000 miles with Mercon SP along with a filter, without a Vag-Com and run to 300,000 miles before another change. Gasp!
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Old 08-16-2012, 04:53 PM
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