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About D-Rob

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  • From
    Carlisle, PA
  • Porsche Club
  • Present cars
    2005 Cayenne Turbo
  1. The only 'special' tools would be maybe a bench grinder and small torque wrench, but that's it. Hand tools will do everything else. The hardest part is transferring fluid into the transmission when you're done.
  2. Hello everyone, I realize I'm new (was a long-time lurker, finally joined up), but I am just dropping in to share my experience using the TransGo Shift Kit (part number "SK O9D"). I have owned my 2005 CTT since January 2014, and adore driving the car (when I can pry it away from my wife, whom drives the car daily). Of course, I do enjoy some wide-open throttle driving. In April 2014, I loaded an aftermarket tune to the DME, and seemingly after that point, I began to notice some strange behavior from my transmission. Under heavy throttle on the shift from second gear to third, the car would "flare shift," or rev as if you had depressed a clutch pedal, before finally engaging the next gear. I would also experience very hard shifts under load from 3-4, and 4-5 sometimes. I have only experienced one or two harsh coasting downshifts ever, also. Seeing that my wife primarily drives the car, and she never loads the car enough to experience any of the problems, I decided to shelf any idea of repair until she noticed any of the symptoms while SHE drove the car. As time has progressed, the conditions never got worse, but I got antsy and wanted to enjoy some WOT in our twin-turbo V8 mom-car. So, I did some searching around and found that the general consensus was to simply replace the valve body; which is what everyone seems to do. I spoke with an acquaintence of mine whom works for my local Porsche dealer, and he said the same thing. I know a lot of guys that own these cars aren't exactly DIY guys, but I didn't understand what made the Aisin valve body any different than anything else, and if a company like RevMax could refurbish an old malfunctioning unit, why couldn't I? I am a mechanic by trade (along with an engine builder, dyno tuner, etc for mostly Honda/Acura products), so I did some more digging. That's when I stumbled upon a thread on these boards regarding a $100~ dollar product in a small box from a company called "TransGo" that promised to fix all aforementioned valve body/shifting problems that plague the Aison TR60SN O9D in our cars. Other than here, there wasn't a lot of information floating around regarding the use of the kit, so I have decided to make this post. The installation process is fairly straight forward, but it certainly is time consuming. You wear a bunch of transmission fluid, and may be a bit overwhelmed at how many parts are actually coming apart when the valve body splits, but follow the instructions and use some common sense, and you'll be fine. After installing the TransGo kit, I didn't reset the transmission adapation, and took the car for a drive. Immediately after pulling away from the shop, every problem the transmission had before was exaggerated. My heart sank, and I thought to myself "Great, a full day's worth of work, and now I have a valve body that's a useless brick." I then returned to the garage, and did some research on how to reset the transmission on the O9G transmissio using a VAG COM (VCDS) cable, and decided to give that a try. The VCDS software spit out some German at me, and I took the car for another drive. Immediately on this test, everything was fixed. Shifting was better than ever; crisp, fast, solid. No flare shifting, no clunking, all perfection. I would also like to note that I switched to Toyota Type IV fluid at the same time. In conclusion, to anyone whom is mechanically-inclined, and has a day to spare and less than $200 in parts, I recommend grabbing the TransGo Shift Kit to fix valve body related shifting problems on their Porsche Cayenne, or VW Touareg. Thanks!
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