Symptoms:

  • Delayed engagement
  • Chatter on acceleration
  • Adaptive limit codes
  • Unstable solenoid pressure

Cause:

Bore wear at the VSTV valve allows pressure escape that causes driveability issues.

Correction:

Oversizing the bore and installing the Sonnax VSTV pilot pressure valve re-establishes proper modulated VSTV pilot pressure.

Warning:

For 01J applications, use 33741B-06. See casting comparison illustration to correctly identify unit being worked on.

01T

Oversized VSTV Pilot Pressure Valve
Part No. 33741B-07


You need this if... View Instructions Find a Distributor

In VW/Audi 01J applications, the VSTV valve is the regulator to both N88 shift pressure and the N215 line pressure control solenoids. As the bore wears, solenoid output will not react according to the control module requirements, eventually setting adaption limit codes. The Sonnax oversized VSTV pilot pressure valve 33741B-07 allows the bore to be refurbished and restores the hydraulic integrity of the circuit for proper modulated VSTV pilot pressure.

  • Valve is hardcoat anodized to reduce wear

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.

VW/Audi 01T Valve Body Layout

VW/Audi 01T Valve Body Layout
  • 01T Oversized VSTV Pilot Pressure Valve 33741B-07
  • 01T Oversized VSTV Pilot Pressure Valve 33741B-07
  • 01T Oversized VSTV Pilot Pressure Valve 33741B-07 details

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

01T Oversized VSTV Pilot Pressure Valve Vacuum Test Locations