Tool Required VB-FIX Required

Printpartsummary
Symptoms:
  • Chatter on Forward
  • Delayed Forward
  • Harsh Forward
Cause:

Low or excessive forward (V clutch) pressure due to worn SIV safety bore.

Correction:

The Sonnax oversized safety valve has been redesigned with annular grooves and is made of upgraded materials to help prevent wear and restore proper hydraulic control.

Tool Required VB-FIX Required

01J, 01T

Oversized Safety Valve

Part No.

33741B-01

Oversized Safety Valve
  • 33741b-01_combo

  • Oversized Safety Valve

Small_33741b-01_combo Small_33741b-01

01J, 01T

Oversized Safety Valve

Part No. 33741B-01

Complaint:

  • Chatter on Forward
  • Delayed Forward
  • Harsh Forward

Cause:

Low or excessive forward (V clutch) pressure due to worn SIV safety bore.


Correction:

The Sonnax oversized safety valve has been redesigned with annular grooves and is made of upgraded materials to help prevent wear and restore proper hydraulic control.

A common issue with Audi 01J and 01T units is chatter during engagement or harsh forward engagement. This can be caused by a worn safety valve bore. The Sonnax oversized safety valve 33741B-01 restores V-clutch engagement.

  • Valve is hardcoat anodized and features annular grooves to reduce wear
  • Restores proper hydraulic sealing and OE pressure control

Required Tools

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
  • 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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