BMW X5: Engine

 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

 Leak-Testing Evaporator

Special tools required: 64 5 104 64 5 108 Necessary preliminary tasks: Remove expansion valve. Replace sealing rings (1) and coat with refrigerant oil. Fig. 90: Identifying Sealing Rings Mount special tool 64 5 108 and retainer (1) with screws of expansion valve. Tightening torque. Fig. 9