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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1.0 Recommended tools
Only use those tools designed for steel repairs.
2.0 Straightening outer shell
"Cold" straightening: Press dents out from their center and smooth in an
inwards direction with
gentle taps.
In the case of small, soft dents (hail and parking damage), this is also
possible
WARNING: Scalding hazard!
Work on independent heating may only be carried out when it has cooled
down.
Necessary preliminary tasks:
Remove left underbody panelling.
Slacken clamp (1).
Release screws (2) and remove muffler (3).
Tightening torque.
Fig. 45: Identifying Muffler/Silencer And Slack