Installing coolant pumps

• Make sure the fitting sleeve (1) is in the crankcase.

• Clean sealing surface (2).

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• Check the O-ring (1) of the coolant line (2) for damage, replace the line if applicable.

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• Replace O-ring (1).

  Parts:  O-ring

• Replace the seal (2).

  Parts:  Seal

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• Position the coolant pump (3) with the feed line.
• Position the coolant line (2).
• Tighten down screw (1).
  TIGHTENING TORQUE SPECIFICATION
  
  

  Coolant line on coolant pump
  M6x12 screw	tightening torque	8 Nm

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Install the feed line to the external radiator 

• Position the feed line (2).
• Connect the feed line (2).

  The retaining clip (1) must engage audibly.

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Install feed line 

• Position the feed line.
• Connect the feed line (2).
• Retaining clip (1) must engage audibly.

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• Position coolant pump (1).
• Tighten the screws in the area indicated by the arrows.
  NOTE: Observe the screw length.
  TIGHTENING TORQUE SPECIFICATION
  
  

  Coolant pump
  M6 screw	Tightening torque	10 Nm

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• Position the coolant line.
• Connect the coolant line (2).
• Retaining clip (1) must engage audibly.

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Tighten the heater return 

• Position the heater return (2) in the coolant pump.
• Tighten down screw (1).
  TIGHTENING TORQUE SPECIFICATION
  
  

  Heater return
  M6x18	Tightening torque	8 Nm

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• Connect plug connection (1) and lock.

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• Check the O-ring (1) of the coolant line (2) for damage, replace the line if applicable.

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• Position the coolant line (2).
• Tighten down screw (1).
  TIGHTENING TORQUE SPECIFICATION
  
  

  Coolant line on coolant pump
  M6x12 screw	tightening torque	8 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE COOLANT LINE FROM THE COOLANT PUMP TO THE CHARGE AIR COOLER ON THE RIGHT .
• Refer to INSTALLING THE LEFT-HAND CHARGE AIR COOLER .
• Refer to CLOSING THE HIGH-TEMPERATURE COOLANT CIRCUIT .
• Refer to CLOSING THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to INSTALLING FRONT UNDERBODY PROTECTION .
• Refer to INSTALLING THE LOWER LEFT FRONT WHEEL ARCH COVER .
• Refer to INSTALLING DRIVE BELT .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE LEFT UNFILTERED-AIR DUCT .
• Refer to INSTALLING LEFT INTAKE SILENCER HOUSING .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING THE FRONT-END STRUT .
• Refer to INSTALLING UPPER CROSS CONNECTION .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT AT TOP LEFT AND RIGHT .
• Refer to FILLING THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .
• Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .