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 fresh-air grille in rear cabin.
Remove trim from rear cabin monitor base at front.
Release screws (1) and remove rear cabin monitor with holder (2).
Disconnect associated plug connections and feed out leads.
Tightening torque.
Fig. 39: Identifying Rear Ca
WARNING:
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling R 134a refrigerant.
Follow safety instructions for handling refrigerant oil.
CAUTION:
Always use new O-rings each time A/C connections are opened.
Moisten O-rings with refrigerant oil pr