Question about 2003 BMW 5 Series
Remove fan impeller with fan clutch from water pump. Remove coolant expansion tank from fan cowl. Note: Coolant lines remain connected. Remove auxiliary water pump from fan cowl. Note: Coolant lines remain connected.
Unclip AUC sensor.
Lever out expansion rivets (1) on left and right. Detach sealing strip (2). Installation: Pay attention to installation position of sealing strip. Lift out fan cowl and fan impeller together.
Installation: Attach fan cowl in retaining lugs at bottom and sides.
Removing and installing radiator (M54):----
Warning! Danger of scalding! Only perform this work after engine has cooled down.
Drain coolant. Remove fan cow.
Lever out spring (1). Remove water hose (2). Release screws (3) on left and right of radiator. Remove both brackets (4). Installation: Follow instructions for working on cooling system.
Disconnect plug (1). Lever out spring (2). Remove water hose (3). Installation: Slide spring (2) back. Water hose (3) must snap audibly into place.
Lift out radiator.
Installation: Pay attention to rubber mounts on left and right.
Installation: Install radiator with rubber mounts on left and right in bracket.
Top up coolant. Vent cooling system and check for leaks.
If cowling out the fan is in the way then :-- Here are the instructions for fan removal.
I have found putting a 32mm wrench on it and hitting it with a mallet works good to break it free, also a impact hammer with a long bit works well as well instead of the special tools.
Removing and installing/replacing fan clutch (S52 / S54 / M52 / M52TU / M54 / M56)
Special tools required:
11 5 030
11 5 040
Important! Left-hand threads. Using special tool 11 5 030, grip pulley and unfasten cap nut from water pump using special tool 11 5 040. If necessary, unfasten fan cowl. Take the fan wheel with fan coupling off the water pump and remove.
Installation: Tighten down fan impeller using special tool 11 5 040. Tightening torque 11 52 1AZ. Note: When using special tool 11 5 040, 30 Nm on the torque wrench scale are equivalent.
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Posted on Jul 09, 2010
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Posted on Jan 02, 2017
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