11 53 590 Removing and installing/replacing the auxiliary water pump (B48AO0)

Necessary preliminary work: 

• Drain COOLANT

Removal: 

Release screw (1).

Pull the auxiliary coolant pump (2) slightly forwards.

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect the connector (1) of the auxiliary coolant pump.

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock coolant hose (1) and pull off of auxiliary coolant pump.

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock coolant hose (1) and pull off of auxiliary coolant pump (2).

Remove auxiliary coolant pump (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Install auxiliary coolant pump (1).

Connect coolant hose (2) to auxiliary coolant pump (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Connect coolant hose (1) to auxiliary coolant pump.

Courtesy of BMW OF NORTH AMERICA, INC.

Connect the connector (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Fasten auxiliary coolant pump with screw (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: 

• Add COOLANT
• Check cooling system for leaks