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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Necessary preliminary tasks:
Remove front seat.
Remove seat cover with padding for front seat.
Release screws (1).
Tip seat towards rear.
Installation:
Tightening torque 52 10 6AZ.
Fig. 36: Identifying Seat Screw
Unclip hydraulic pockets (1) with supports on left and right from flex mat.
NOTE
Special tools required:
31 4 151
31 4 152
31 4 153
IMPORTANT: For reasons of driving dynamics, the rubber mounts may only
be replaced in
pairs (refers to left and right control arms)!
Necessary preliminary tasks:
Check ball joint of both control arms while installed, replace lower
control