Tool Required VB-FIX Required

Printpartsummary
Symptoms:
  • Adaptive limit codes
  • Chatter on acceleration
  • Delayed engagement
  • 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.

Tool Required VB-FIX Required

01T

Oversized VSTV Pilot Pressure Valve

Part No.

33741B-07

Oversized VSTV Pilot Pressure Valve
  • 33741b-07_combo

  • Oversized VSTV Pilot Pressure Valve

  • 33741b-07_id

Small_33741b-07_combo Small_33741b-07 Small_33741b-07_id

01T

Oversized VSTV Pilot Pressure Valve

Part No. 33741B-07

Complaint:

  • Adaptive limit codes
  • Chatter on acceleration
  • Delayed engagement
  • 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.

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
WARNING:

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

Required Tools

Related Parts

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.

  • Test Locations

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Valve Body Layouts

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.

Valve Body Layout Audi 01J
Valve Body Layout Audi 01T

Related Tech Articles

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