Under certain driving conditions and in hot weather, the fuel tank ventilation valve may not remain fully closed. If this happens, fuel may leak into the evaporative system, saturating the carbon canister and causing the Malfunction Indicator Lamp (MIL) to illuminate. This may cause vehicle jerking as well. Fuel could leak out from the evaporative system leak detection pump filter. A fuel leak could lead to a vehicle fire in the presence of an ignition source. Dealers will replace the fuel tank ventilation valve with an improved valve. The recall began June 2, 2009. The Volkswagen recall number is 20P6/S2.