Cross-Reference Numbers: BMW 13718596850, ELRING 398.0, FAI VS250210, 13 71 8 596 850, 1371 8596850, 1371-8596850. 11618506786, 11617801974. X6 All (Petrol/Diesel) F16 2014–2019 N57, B57, N55, N63. Check for any obvious air leaks by running the engine and feeling for any escape of air at the connections.
