11 53 090 Removing and Installing/Replacing Auxiliary Water Pump for Exhaust Turbocharger (N63O1)

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Risk of Scalding!
Only Perform Repair Work After Engine Has Cooled Down.

Recycling

Catch and Dispose of Drained Coolant In A Suitable Collecting Vessel.

Observe Country-Specific Waste Disposal Regulations.

Necessary Preliminary Tasks:

Remove Intercooler EXPANSION TANK .

Unclip Coolant Hose (1) From Bracket (3) and Lay In Direction of Arrow To One Side.

Unfasten Screws (2).

Tightening torque 11 51 3AZ .

Fig 1: Identifying Coolant Hose, Bracket and Screws

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IMPORTANT: Risk of Damage!
Coolant Emerges When The Coolant Hoses Are Detached From The Auxiliary Water Pump (3).
Cover Surrounding Components and Plug Connections with Suitable Apparatus

Release Hose Clamp (5) with A Suitable Tool.

Installation Note:

Replace Hose Clamp (5).

Fig 2: Identifying Auxiliary Water Pump, Hose Clamps, and Coolant Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

Detach Coolant Hose (4) and Lay To One Side.

Release Hose Clamp (1) with A Suitable Tool.

Detach Coolant Hose (2) and Lay To One Side.

Disconnect Plug Connection (2).

Installation Note:

Plug Connection (2) Must Snap Audibly Into Place!

Lift Out Auxiliary Water Pump (1).

Release Holder (3) From Auxiliary Water Pump (1).

Fig 3: Identifying Auxiliary Water Pump, Holder and Plug Connection

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Assemble Engine.

Top Up COOLANT .