Symptoms:

  • Chatter on Forward
  • Chatter on Reverse
  • Clutch friction failure & overheat

Cause:

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

Correction:

Recover hydraulic control and renew system operation by reconditioning the bore and installing Sonnax oversized clutch control valve kit.

01T

Oversized Clutch Control (KSV) Valve Kit
Part No. 33741B-02K

No flow notches


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

Bore wear is common in Audi 01T units due to contamination and the high system pressure. Any unit with a worn clutch control valve and/or bore can show clutch chatter on Forward or Reverse engagement and clutch friction failure and overheat. These symptoms are caused by the loss of fluid pressure to the forward or reverse clutches due to excessive wear, allowing critical hydraulic pressure to leak to adjacent circuits or to the sump. OE function and performance can be expected after installing the Sonnax oversized clutch control (KSV) valve kit 33741B-02K.

  • Valve is hardcoat annodized to reduce wear
  • Restores proper hydraulic sealing and OE pressure control

For 01J applications, use 33741B-03K. See valve comparison illustration to correctly identify unit being worked on.

  • Valve
  • O-Rings (4) 2 extra

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 Clutch Control (KSV) Valve Kit 33741B-02K
  • 01T Oversized Clutch Control (KSV) Valve Kit 33741B-02K
  • 01T Oversized Clutch Control (KSV) Valve Kit 33741B-02K details

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum 14 and 16 in-Hg, or if wear is visually detected.

01T Oversized Clutch Control (KSV) Valve Kit Vacuum Test Locations