A worn secondary pressure regulator valve in vehicles with listed Aisin AW, VW/Audi, and Mini transmissions can cause several problems. Overheating the fluid, bushings, and torque converter can all be caused by a worn secondary pressure regulator valve. Drivability issues include harsh Reverse, TCC slip, and poor shift quality. Sonnax kit 15741-11K is designed to correct the pressure outputs from the secondary pressure regulator valve and fix these drivability issues.
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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Either a Wet Air Test or a Vacuum Test in the location shown, result in leakage. Vacuum test must hold a minimum of 18.