I have a 2002 A4 1.8T CVT. Lately, it has started to feel like it's slipping in the 1500-1900RPM range under any condition -- highway speed or taking off from a stop. I've made a couple other posts about this, and I was just going to try changing out the fluid (for which it's due for since I'm at 80K).

I purchased a VAG-COM license a few days ago and pulled the code on my transmission:

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Address 02: Auto Trans
Controller: 01J 927 156 CQ
Component: V30 01J 1.8l5VT USA 2032
Coding: 01001
Shop #: WSC 63351
1 Fault Found:
18113 - Gear Ratio Monitoring: Adaptation Limit Reached
P1705 - 09-10 - Adaptation Limit Surpassed - Intermittent

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Now, I've done a great deal of research and I'm pretty comfortable working on my car. That said, this is a little scary. I'm at 80,000 miles and everything else seems in tip-top shape.

From what I've gathered, I should upgrade to the 7-plate clutch from the 6-plate that is in there now. Additionally, based on the fault data above I will probably need to replace the hydraulic control unit. Since I have to pull the input shaft to do this (the clutch), I might as well rebuild the valve body while I'm in there.

Now, because of all of this and from talking to people today -- import auto specialist I know, transmission guy recommend by my friend and an Audi dealer -- they are telling me I might be better off just getting a remanufactured transmission and dropping that in.

There are a few TSB's from Audi regarding this issue, and from others on the forum I know it's a known issue.

I've had it since 45,000 miles and this didn't start happening until about 4,000 miles ago or so. Since then it's gradually gotten worse. As long as I use the shifter to keep the RPMs above 2000RPM, it runs fine.

All in all, how screwed am I? What would you do if this were your car?

-Chris

 

From reading on other forums, it seems upgrading to the 7-plate clutch does the trick. Will the dealer sell this to me? How hard is it to upgrade the clutch once you pull the transmission out? According to my service manual you just pull the input shaft and it's right there. Has anyone done this?

-Chris