3 Series E90 328xi (N52K) SAL
If necessary, replace connecting rods.
Important!
Individual replacement of a connecting rod is not permitted.
Connecting rods are classified by weight categories and are
only available as a set for all cylinders.
Existing and new connecting rods must not be installed in
mixed combinations.
Installation:
It must be possible for the piston pin to be pressed with minimal
force by hand through the small end bushing. There must be no
noticeable play.
Measure piston installation clearance:
Measure piston diameter with micrometer at measuring point "A"
from lower edge of piston and offset by 90
°
to piston pin axis.
Piston diameter at measuring point "A".
Adjust micrometer to cylinder bore of crankcase. Set internal
caliper on micrometer to "zero". Measure bottom, centre and top
of cylinder bore in direction of travel and direction of engine
rotation.
Diameter of cylinder bore.
Piston installation clearance.
Total permissible wear tolerance.
If necessary, replace piston.
Warning!
Protective goggles must be worn.
Insert piston pin circlip (2) into groove (1) of special tool
11 4 493 .
Move piston pin circlip (2) into installation position.
RA Removing and installing/replacing all pistons (N52K)
BMW AG - TIS
17.02.2013 17:19
Issue status (12/2007) Valid only until next DVD is issued
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