Symptoms:

  • Broken end plugs
  • Line pressure cannot be adjusted

Cause:

Inability to adjust or inspect the boost regulator valve due to design and breakage of the OE ratcheting endplug.

Correction:

This drop-in replacement end plug allows replacement of missing or broken OE plugs. The adjustment tool allows line pressure to be tuned by compressing the ratcheting arms of the OE or Sonnax ratcheting end plug for adjustment purposes.

Warning:

Recommended tool kit 119940-TL9 is no longer in production. Check with your distributor for availability.

01M, 01N, 01P, 096, 097, 098

Ratcheting End Plug
Part No. 119940-22


View Instructions Find a Distributor

In listed VW/Audi units, the boost regulator valve, which regulates EPC pressure feed to the main regulator valve, is secured in the valve body with a ratcheting end plug. Attempting to turn the end plug in order to tune line pressure will cause the end plug to break. Additionally, the boost regulator valve can cause significant wear to the bore, allowing EPC leakage, which can result in low line pressure, soft shifts and burned clutches. This bore should be inspected for wear on every rebuild.

The worn bore may be salvaged using the Sonnax oversized boost regulator valve 119940-05K for 01M, 01N, 01P units, or 119940-07K for 096, 097 and 098 units. Sonnax ratcheting end plug 119940-22 and adjustment tool [119940-TL9] allows line pressure to be fine-tuned.

  • High-quality plastic ratcheting end plug is designed to replace broken or missing OE end plugs
  • Adjustment tool allows line pressure to be tuned without breaking the end plug by compressing the ratcheting arms of the OE or Sonnax end plug
  • Drop-in Zip Valve™ part installs quickly and easily

Sonnax adjusting tool [119940-TL9 ]is not required but is highly recommended to allow removal or adjustment without breaking the end plug arms.

  • 01M, 01N, 01P, 096, 097, 098 Ratcheting End Plug 119940-22
  • 01M, 01N, 01P, 096, 097, 098 Ratcheting End Plug 119940-22