Symptoms:

Cause:

Inconsistent reaming can result in slightly undersized bore.

Correction:

The Sonnax bore sizing tool slightly resizes bore ensuring correct bore-to-valve interface.

Warning:

Associated tool kit 119940-TL4 is no longer in production. Check with your distributor for availability.

01M, 01N, 01P

Bore Sizing Tool
Part No. 119940-BST

View Instructions Find a Distributor

In some VW/Audi 01M, 01N and 01P units, you may find after installing the Sonnax oversized TCC apply valve kit 119940-04K that the TCC apply valve sticks or doesn't drop all the way into the bore without excessive force. Sonnax bore sizing tool 119940-BST resizes the bore and gives you the finish and roundness you need to allow the valve to move freely.

¼-20 Tapped hole for use of slide hammer
Allows for successful oversizing of bores