64 11 262 Removing and installing/replacing auxiliary water pump (S63)

Special tools required:

WARNING: Risk of scalding!
Only perform this work after engine has cooled down.

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:

IMPORTANT: Risk of damage!
Ribs on radiator may not be damaged.

Unlock plug connections (1) and disconnect.

Unlock and disconnect coolant hose (3) from auxiliary water pump for charge air cooler (2).

Open the hose clamp (5) on the coolant hose (4).

Detach coolant hose (4).

Fig 1: Identifying Plug Connections, Coolant Hoses, Clamp, And Charge Air Cooler

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (2).

Open the clamp (1) and feed the auxiliary water pump for the charge air cooler (3) out toward the top.

Installation note:

Make sure auxiliary water pump for the charge air cooler (3) is seated correctly in the auxiliary water pump holder.

Fig 2: Identifying Charge Air Cooler, Clamp And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

For better removal, place the holder (1) with the auxiliary water pump (4) upward.

Unlock spring clamps (3) with special tool 17 2 050 .

Pull off coolant hoses (2) from auxiliary water pump (4).

Release screws (5).

Remove the auxiliary water pump (4) from the bracket (1).

Installation note:

Make sure auxiliary water pump (4) is seated correctly in bracket (1).

Fig 3: Identifying Spring Clamps, Coolant Hoses, Screws, Auxiliary Water Pump, And Bracket

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