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My 2000 S80 T6 has the "adaptive" Geartronic transmission which has adapted to the habits of the previous owners. Despite my keeping my foot in the turbochargers, the transmission short shifts into second gear just before it starts making power. In 20k miles, it has not adapted to me, however it runs out just fine in manual mode.<p>What steps must one take to reset the mind of the transmission? My independent mechanic thinks that if the battery cables are disconnected and the positive and negative cables are joined away from the battery, the system will somehow drain in an hour and clear its memory. My local dealer didn't have a clue.<p>Have any of you "unadapted" the transmission and what is the correct procedure?
 

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Re: Unadaptive My Transmission (RWMunday)

Pull the ETM and the TCM fuses. Wait 5 minutes. Restart WITHOUT the fuses in, (car won't start).<br>Reinsert fuses. You should have a "blank" TCU" (& ECU)waiting for you to drive<br>(This is what some of the R people are doing to clear their programing)
 

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Re: Unadaptive My Transmission (JRL)

That is very much the right answer JRL. Please RWM do not even think of touching the pos and neg cables! with or with out the bettery even near them. ANY static charge left in the system till the total discharge like JRL has said will short whatever computor/module it can get to first. Kill the static charge like he said by leaving fuses out a few mins and trying to start the car to drain it of juice in those systems. Then reinstall fuses like he said and start car. ALSO do not use the sport manual shift gate till after a few days. LET the base transmission auto fuction relearn a bit of your NON slapstick driving. Then move on to useing that feature again. All should be well in a week or days. Depends on how much to drive everyday.
 

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Re: Unadaptive My Transmission (RWMunday)

It really shouldn't still be adapted to the old owners. In my experience the 'adaptive' part of the transmission control is much much more time dependent. If I start pushing the car, within a few minutes it's changed it's character, delaying shifts, etc. When I'm driving normally, the car settles down within a few miles as well. It's adapting to how you're currently driving the car, not the whole past history of driving.
 

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partridge, <br>May be true, but there's a whole lot to be said about "placebo effect." <br>Regards,<br>MIJ
 

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Re: Unadaptive My Transmission (partridge)

Like MIJ said, Might be very well true partridge with SMALL adjustments to YOUR long term habits every day. But since he asked for a idea on HOW to clear the brain and relearn form base mode. It is best since he has not had it learn LIKE you say it should to his likeing in 20K! Clear the brain and just reteach the trans once and for all to his habits for sure from DEAD BASE mode. NO coulda shoulda woulda about it. Also it might be that it will start to learn from base for him now. And the adjust on the fly mode you state it should have been in, might not be learning and he will find that out now. After the clearing it might zap it enough to put it into that learn on the fly mode as well again. Nothing is sure till you try it and it does not work. Or it does. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0">
 

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Re: Unadaptive My Transmission (Nato740)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Nato740</b> »</i></TD></TR><TR><TD CLASS="quote">Like MIJ said, Might be very well true partridge with SMALL adjustments to YOUR long term habits every day. But since he asked for a idea on HOW to clear the brain and relearn form base mode. It is best since he has not had it learn LIKE you say it should to his likeing in 20K! Clear the brain and just reteach the trans once and for all to his habits for sure from DEAD BASE mode. NO coulda shoulda woulda about it. Also it might be that it will start to learn from base for him now. And the adjust on the fly mode you state it should have been in, might not be learning and he will find that out now. After the clearing it might zap it enough to put it into that learn on the fly mode as well again. Nothing is sure till you try it and it does not work. Or it does. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0"> </TD></TR></TABLE><p>My point is that the learning doesn't take place over a long term. <p>It doesn't have any long term memory. If you drive like a wuss for 20,000 miles there isn't some sort of memory that says "wow, this guy's a total wuss, no matter what he does, we're gonna keep the tranny in wussy mode, because we know that even if he acts sporty for a few thousand miles, he's really a wuss inside. That'll fix you you wussy wuss wuss." It just doesn't think like that.<p>The adaptation is taking place over a short term. If you drive like your rear is on fire for a few minutes, it'll switch to a sportier mode. If you then settle down a for a while, it'll settle down too. It's not doing any long term learning, and it should never stop adapting to your current driving style.<p>Think about it. If the transmission did long term learning, it would really really suck for multi-driver cars.<p>Resetting the tranny has more to do with possibly clearing a software error than clearing any learning memory.<p>Now, the ECU is an entirely different animal. It's learning about the engine and the fuel you're using, so it does take a slightly longer term approach, but even if you reset the ECU and it goes back to stock timing, it'll still retard the timing down to a safe level if it is warranted. The only benefit you get from doing so is, let's say you put in a tank of race gas. You don't want to waste half your expensive tank for the ecu to realize it's safe to advance the timing, so you just clear it's brain first.<br>
 
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