11 53 090 Removing and installing/replacing auxiliary water pump for exhaust turbocharger (N63)

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

Recycling:

Catch and dispose of drained coolant in a suitable container.

Observe country-specific waste disposal regulations.

Necessary preliminary tasks:

Remove charge air cooler EXPANSION TANK

Unclip the coolant hose (1) from the holder in the direction of the arrow.

Unfasten screws (2).

Tightening torque: 11 51 4AZ .

Fig 1: Removing Coolant Hose From Holder

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Risk of damage!
Coolant emerges when the coolant hoses are detached from the auxiliary water pump.
Cover surrounding components and plug connections with suitable apparatus

Fig 2: Identifying Coolant Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

Release hose clamps (1 and 2) with a suitable tool.

Disconnect plug connection (not shown).

Installation note:

Plug connection must snap audibly into place!

Lift out auxiliary water pump.

Assemble engine.

Top up COOLANT .

VENTING INSTRUCTIONS must be observed without fail.