3 Series E46 316Ci (N45) COUPE
11 25 671
Replacing piston rings on all pistons
(N40/N42/N45/N46)
Necessary preliminary tasks:
•
Remove all pistons.
Measuring axial clearance of piston rings in piston ring
groove (1 and 2):
Technical Data.
Note:
It is not possible to measure the axial clearance of the oil
scraper rings.
Remove piston rings (1 und 2) with piston ring compressing
pliers.
Note:
It might not be possible to find the identification on used
piston rings.
Put aside piston rings in correct sequence and installation
position.
New pistons may only be installed together with new piston
rings.
Measure end clearance.
RA Replacing piston rings on all pistons (N40/N42/N45/N46)
BMW AG - TIS
18.01.2013 19:08
Issue status (12/2007) Valid only until next DVD is issued
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