095, 096, 098, 099, 01P

Symptoms:

• Delayed engagement
• Engine stall at idle
• High line pressure in Reverse
• Erratic line pressure
• No line rise

Cause:
Wear at the large end of the main regulator valve can cause low line pressure. Wear at the inboard end of the main regulator valve causes high line pressure.

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

In VW/Audi 01M, 01N and 01P units, regulated line leaks to exhaust at the pressure regulator, it creates a low pressure condition. Wear at the inner balance spools prevent the valves from stroking, which can cause high line pressure. Wear at the inboard bore also affects the K1 clutch circuit, which can result in 1-2 or 2-3 shift complaints. The Sonnax oversized main pressure regulator valve allows the valve bores to be refurbished.

• Oversized hard-coat anodized aluminum valves restore hydraulic integrity of the circuits and prevent wear
• Contains an O-ringed end plug to positively seal the bore and prevent regulated boost line pressure from exhausting
• A new spring is included to work with the oversized valve and re-establish OE regulated pressure specifications

Content:

• Valve
• Spring
• End Plug
• O-Rings (2) 1 extra

SONNAX Installation Instructions