BMW 1999-2005 M3 Service Manual page 381

Radiator and Cooling System
5 of 16
http://ebahn.bentleypublishers.com/BMW/3/E46/Repair%20Manuals/1...
Working at top of fan shroud, remove
screw and expansion rivet (arrows)
holding fan shroud to radiator. Unclip
or disconnect electrical connector(s)
from right side of shroud.
Note:
Shroud is detached from radiator at this
point but can only be removed later
when fan and clutch assembly is
removed.
Using 32 mm wrench (BMW special
tool 11 5 040) on fan clutch nut
(arrow), turn wrench quickly in a
clockwise direction (working from front
of car) to loosen. Spin fan off coolant
pump.
Note:
The radiator cooling fan nut (32
mm wrench) has left-hand threads.
If fan nut is difficult to loosen, use
BMW special tool 11 5 030 to
counterhold coolant pump pulley.
Lift fan and shroud together out of
-
engine compartment.
- To replace fan clutch, remove fan
mounting bolts and separate
viscous clutch from fan.
Installation is reverse of removal.
-
Tightening torques
Clutch nut to coolant pump (left-hand
threads)
without BMW tool
11 5 040 40 Nm (29 ft-lb)
2/25/2009 9:57 PM