3 Series E46 318Ci (M43TU) COUPE
Caution!
Before removing the pistons, remove the oil carbon residue
from the cylinder walls.
Note:
The M43TU B19 has a new style of oil scraper ring (U-Flex
ring) which can be damaged by the oil carbon residue when
the piston is removed.
Version with oil spray nozzles on underside of cylinder
Caution!
Oil spray nozzles for cooling the pistons are installed on the
underside of the cylinder between the bearing seats. Be
careful not to damage the oil spray nozzles when removing
the pistons.
In order to avoid the possibility of injury from the piston or
connecting rod, the location of oil spray nozzles is equipped
with special tool 11 7 320.
Unscrew conrod bearing cover.
Remove conrod with piston from cylinder head side.
Lift out retaining ring and press out piston pin.
Caution!
Piston and piston pin are paired and must not be fitted
individually.
RA Removing and installing or replacing all pistons (M43 / M43TU)
BMW AG - TIS
29.01.2013 23:02
Issue status (12/2007) Valid only until next DVD is issued
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