
Originally Posted by
danbfree
What's the build date? Pre 12/11/05 needs update or else use older tan fluid.
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This is the post that confused me as it basically says ALL B7 A4s came with ZF6 and unless you have or get the software update you need to stay with ZF6. I still have not been able to check the version of my software.
http://www.audizine.com/forum/showth...=1#post8240709
Our cars originally came with the Lifeguard 6 (yellow) G-055-005-A2. The fluid was later updated to Lifeguard 6+ (blue) G-055-162-A2 with a corresponding update to the tranny software – see TSB. This 6+ fluid didn’t last long and was superseded by the Lifeguard 8 (green) G-060-162-A2. The 6+ (blue) and the 8 (green) are interchangeable/intermixable as long as you have the new software code, however, the 6 (yellow) should not be mixed with the 6+ or 8. I believe it takes a flush to switch from the 6 to the 8. I read somewhere that the Lifeguard 8 has a thinner viscosity so apparently the shifting algorithms were revised to allow for this and if you use it with the old software code tranny damage could result.
In order to pick the correct fluid you need to determine what software code you have (old or new). If you have the new software then there has most likely been some service work done to your car where the dealer changed the fluid and the fluid should be either blue or green. In which case you should stay with the Lifeguard 8 (green) fluid.
If you have the old software code “0010” you have a decision to make. Either stick with the old fluid G-055-005-A2 Lifeguard 6 (yellow) or flush the old fluid out and use the new Lifeguard 8 with a software update. Now is this simple or what?
My build date is 02/06 so per your info and dealer it would be ZF8, however this post makes it seem like I need to check software version. Also per this post the software changes how 1st gear shifts:
http://www.audizine.com/forum/showth...=1#post8262592
Just wanted to add my experience. I have an 06 tip I recently did a filter/fluid change. Went from yellow fluid to lifeguard 8. The lifeguard 8 has a very faint green tint to it. It actually looks more like yellow. I jumped into it knowing the tcm may need a software update. It did. Without the software update, the transmission had a nasty 3rd to 2nd gear downshift. So bad I thought I messed something up. The dealer performed tsb 2025083, which seems to be just a bulletin strictly to advise updating the tcm software if the original yellow fluid is changed to something newer like the blue or green fluid.
The transmission now shifts smoother than I can ever recall. I couldn't tell you if it's due to the fresh fluid or the software update. What I can attribute to the software update is the function of 1st gear. It is now much more functional as in it shifts a fair bit later on light load. It use to shift out of 1st gear as early as 1100rpm on a very light load, like when you're rolling out of a parking space. It was just very annoying if you needed to accelerate from a near standstill and the transmission has already shifted to 2nd gear.
My car definitely seems to shift to 2nd way to early.
Per TSB 37-06-13 my vin falls within:
http://uberlame.com/a6_tsb/Transmiss...2037-06-13.pdf
Called Audi of Hartford and they didnt seem to understand why I was changing the ATF so feel they will be of no help.
So I back to thinking that if I change to ZF8 I will likely have to take it to Audi for software update. Maybe I should just use the ZF6 I have and deal with switching to ZF8 and software update later...
Everything on car is done (Oil cooler/filter housing seals, fuel pump and ATF drained, filter replaced and pan installed. I was waiting on ZF8 fluid, however UPS says has been delayed due to weather...
I also still do not have a way to check trans temp.
I tried to see if Torque Pro could read trans temp and seems it will not as I just have a dash under both Trans Temp A/B. However, I did not start that car so that may have been why it did not show up. I cannot start the car until I add the ATF.
I can try my Dashhawk but feel it is unlikely to work.
EDIT,
just bought Ross Tech Cable. Now "only" $200.
I can only assume that by checking SW version I can now be certain what fluid I need to use. If 010 than gold if 030 than green.
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