BMW X5 Owners & Service Manuals

BMW X5: Engine Mechanical Overview



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 ca


Although, the N54 engine has an all aluminum crankcase, many of the bolts are still aluminum as on the N52. This is to reduce any potential confusion between steel and aluminum bolts. Some bolts, fo

 Cylinder Head Cover

As stated before, the cylinder head cover used on all of the new NG6 engines is made from plastic. However, the design differs between the engines due to engine equipment. For example, the N54 engi


 Ignition Management

Most of the ignition system components have remained the same for all NG6 engines for 2007. There are some minor changes to the ignition coils that apply to all versions. The coils have been optimized for more durability. Spark Plugs The spark plugs for the N51 and N52KP remain the same as N52. Ho

 Replacing Crankshaft (N52K)

Special tools required: 00 2 510 DIAL GAUGE WITH FEELER 00 9 120 TORQUE ANGLE MEASURING DIAL 11 4 370 11 4 440 11 4 470 11 9 360 IMPORTANT: Aluminium-magnesium materials. No steel screws/bolts may be used due to the threat of electrochemical corrosion. A magnesium crankcase requires alumin

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