Flare upshifts or downshift bind-ups in vehicles with the Aisin AWTR-60SN,VW/Audi 09D transmission can be caused by a worn K3 clutch control valve. Wear at this valve causes incorrect shift timing, which can also cause clutch distress. The Sonnax K3 clutch control valve kit 25741-08K helps restore shift timing.
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.
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A vacuum test at indicated ports fails to yield 18 in-hg or greater, or if visual wear is detected.