September 30, 2005
Continuous stroking of the TCC apply valve in VW/Audi 01M, 01N and 01P units can create excessive valve body wear and allow converter apply pressure to leak to exhaust. This prevents proper engagement of the torque converter clutch and can result in loss of TCC apply, engine stall, overheating conditions or a 1582 code. Sonnax oversized TCC apply valve kit 119940-04K allows the valve body to be refurbished, restoring the hydraulic integrity of the circuit.
Early versions of this tool kit did not contain bore sizing tool. Customers who already have the reamer and reamer jig are encouraged to order bore sizing tool 119940-BST and complete the bore sizing steps outlined in the instructions on all future kit installations.
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.
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.