BMW X5: Engine Mechanical Overview
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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
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
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REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT B-PILLAR AIR VENT
Necessary preliminary tasks:
Remove B-pillar trim.
Unclip retaining clip (1) and feed out air vent (2) in upward direction.
Installation:
Replace damaged retaining clips (1).
Fig. 61: Identifying Air Vent Upward Positions
REMOVIN
Head Gasket
The head gasket design on the N54 is unique to that engine.
It features a multi-layer steel design. There is no silicone rubber perimeter
"shelf" as on the N52. This is not
needed due to the aluminum block on the N54.
The N52KP and N51 engines are still using the head gasket that is f