n239

  1. Seat Adam

    N239 or Inlet Manifold Changeover Flap Valve

    Also known as the Anti Shudder Valve. My car is a 2004 Leon Cupra TDI PD150 with 109K miles on the clock. Basically, my shut-off valve is sticking and is stuggling to re-open after engine switch off. I have had a look and can see the vacuum actuator working, just the quarter turn arm, bracket...