Audi vehicles equipped with 0AW transmissions may develop symptoms of sluggish take-off or trouble achieving desired ratio range. Solenoid or ratio codes may also be stored in computer memory. These issues can be caused by bore wear at the VSTV valve, which allows critical control pressure to escape the circuit. Reconditioning the bore and installing Sonnax oversized VSTV valve 33741Q-01 eliminates bore wear for renewed pressure control under all operating conditions.
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.