BMW N47 PCV Diaphragm Valve Cover Repair Kit Cap 11128508570 118d E82 E81 E60 X3

For OE number: 11128508570. BMW N47 PCV Valve Cover Repair Kit Cap - 18d / 20d / 25d Models. The PCV diaphragm cap is subjected to constant negative pressure, as a result, any cracks or leaks in the rubber seal will cause engine malfunctions.