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Found 1 result

  1. Ok...Ive read all of the posts on this forum and (have been a contributing member since day one of my Cayenne ownership), about the hard shifting from 5-4 and 4-5 with the cayenne S. Mine is an 04S with 94K bought from the dealer with 72K in October (yess I do a ton of driving, but why not do it in style?) Here is the issue: Hard downshifts after cruising in 5th or 6th gear at around 55 mph, when I coast down to say 35 mph and get back on the gas I get a hard clunk (just like everyone else with an 04) as if i just hit a cinder block in the road. my gut is saying trans valve body. Today I took to the only indy Porsche mechanic in my area (he only works on german autos his lot was filled with BMW's and Mercedes and came highly recommended) and he advised, after witnessing the same symptoms that I have described, that I take it to the dealership and have the Trans control unit and the DME software reprogramed, and then if the issues reoccur, to bring it back to him and then he will proceed with the valve body or full on trans replacement. ultimatley, here is my question. I have an appt with the dealership on thursday for the reprogram. Am I wasitng time and $ the the software reprogram, or should I just let the dealership diagnose and trust what they have to say? I am a good mechanic and have worked on everything under the sun except a Porsche and am wondering if the TVB is something that is reasonably do-able in the everyday man's garage
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