BMW 1999-2005 M3 Service Manual page 300

Lubrication System
2 of 4
http://ebahn.bentleypublishers.com/BMW/3/E46/Repair%20Manuals/1...
Oil pump removal requires lowering the
front suspension subframe to remove
the oil pan.
Drain oil as described in
-
Maintenance.
Remove oil pan as described
-
earlier.
Remove oil pump sprocket mounting
nut (left-hand thread) (arrow). Lift
sprocket off together with drive chain.
Remove mounting bolts from oil pump
(7) and oil pump pickup tube (12).
Withdraw pump.
1 - Drive chain
2 - Nut M10x1left-hand thread
-tighten to 25 Nm (18 ft-lb)
3 - Oil pump sprocket
4 - Inner rotor
5 - Outer rotor
6 - Oil pressure relief valve assembly
7 - Bolt M8 -tighten to 22 Nm (16 ft-lb)
8 - Oil pump housing
9 - Locating dowels
10 - Sealing O-ring
020
2/25/2009 9:53 PM