As far as the physical appearance and dimensions, the crankcase on the N54 is
the same as the N52. The main
change is in the materials, the N54 uses an all aluminum alloy crankcase. There
is also cast iron cylinder liners
similar to the previous M54 engine.
The reason for using the all aluminum c
WARNING: US/CDN front passenger seat (with OC3 mat) only:
The padding can only be removed in conjunction with the OC3 mat.
If padding is defective, both parts may only be replaced together. After fitting
new padding, enable OC3 mat with BMW diagnosis system.
The operation for removing the padding