Most transmission shops do not want to touch this car. It seems like it is low on fluid. I do not see any visible leaks and of course you can't check it. It is more prevelent in traffic where it is shifting alot. One transmission shop told me it might be a sensor.
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2008 Volkswagen Jetta Question: My Jetta's transmission down shifts very hard comming to a stop.
oss in need of service? see aamco for free diag and est then shop prices