BMW Forums : BimmerForums banner


  1. BMW 3 Series Forum - Technical Talk on the BMW E46
    hi Guy's, Just a quick one, A friend of mine's 2000 E46 318i, M43TU, failed on emisions. The Co2 and HC were all within spec but the Lambda was out on fast idle- cant remeber by how much. looked for air leaks and found that the crankcase vent valve pictured here as part #1 was leaking...