64 11 262 Removing and installing/replacing auxiliary water pump

Special tools required: 

• 17 2 050

Recycling 

Coolant emerges when coolant lines are detached. Have a suitable collecting vessel ready.

Catch and dispose of emerging coolant.

Observe country-specific waste disposal regulations.

Necessary preliminary tasks: 

• Remove FRONT LEFT WHEEL ARCH TRIM
• Disconnect COOLANT HOSES 

Unlock spring clamps (1) with special tool 17 2 050 .

Pull off coolant hoses (2) from auxiliary water pump (3).

Unlock associated plug connection and disconnect.

Pull off auxiliary water pump (3) from bracket (4).

Installation note: 

Make sure auxiliary water pump (3) is seated correctly in bracket (4).

Fig 1: Identifying Coolant Hoses, Auxiliary Water Pump, Bracket And Spring Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

After installation: 

• FILL COOLING SYSTEM
  IMPORTANT: Filling and bleeding must not be performed in ECO-PRO MODE!
• Check cooling system for leaks  . See 17 00 009 CHECKING COOLING SYSTEM FOR WATERTIGHTNESS (N55, N63, N47 D20 O/T 1, N57 D30 U/O/T/S 0/1) or 17 00 009 CHECKING WATERTIGHTNESS OF COOLING SYSTEM (N63 B40/B44 O 1, N74)