BMW X5: Integrated Suspension Systems

 Crankcase

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

 Connecting Lines

NOTES ON FITTING A NEW PIPE OR A SCREW CONNECTION IMPORTANT: Do not kink, twist or crush lines. Do not disassemble screw connection! Fitting new screw connection: Insert complete new screw connection consisting of toothed ring (1), banjo bolt (2) and assembly plug (3) into air spring/pipe connecti