097, 01M, 01N

Symptoms:

• 2-3 Late
• No 3-4
• Wrong gear starts
• No line rise
• No 2-3
• 3-4 Late
• 2-3 Bind-up
• Loss of gear

Cause:
Constant oscillation of the solenoid regulator valve creates bore wear. This wear can result in oil pressure loss and reduce solenoid feed pressure and balance line pressure at the main regulator valve.

Correction:
Sonnax offers an oversized valve kit for the solenoid regulator valve. This kit allows the valve bore to be refurbished to restore solenoid feed oil pressure.

Warning:
Sonnax now offers an oversized valve kit for the main regulator valve with improved boost oil circuit and improved converter feed.

Constant oscillation of the solenoid regulator valve in the bore creates wear, which can reduce solenoid feed pressure, resulting in various shift complaints in VW/Audi 096, 097, 098, 01M, 01N, 01P units. In addition, wear at the solenoid regulator valve can reduce balance line pressure at the main regulator valve, which will result in low line pressure or no line rise. The Sonnax oversized solenoid regulator valve restores solenoid feed oil pressure. Adjustment of the ratcheting end plug on the boost regulator valve may be needed after servicing the solenoid regulator valve. Sonnax recommends the adjustment tool [119940-TL9] for proper adjustment without damage to the plug.

• Oversized valve restores solenoid feed oil pressure
• Hardcoat anodized aluminum valve combats premature wear
• Valve is recalibrated to restore OE pressure specifications

SONNAX Installation Instructions