11 51 000 Removing and installing/renewing coolant pump (N54, N54T)

WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

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.

IMPORTANT: Aluminum screws/bolts must be replaced each time they are released.

Aluminum screws/bolts are permitted with and without

color coding (blue).

For reliable identification:

Aluminum screws/bolts are not magnetic.

Jointing torque and angle of rotation must be observed without fail (risk of damage).

Necessary preliminary tasks:

Remove COOLANT THERMOSTAT
Remove RIGHT DIAGONAL STRUT

Release coolant hose (1).

Release coolant hose (3).

Disconnect plug connection (2).

Release screws (5).

Installation note:

Replace aluminum screws.

Tightening torque 11 51 1AZ .

Installation note:

If a coolant pump is reused, it must be mechanically rotated once (breakaway torque at pump gears).

Fig 1: Identifying Coolant Hose With Plug Connection And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

One coolant pump rotation will be sufficient.

Assemble engine.

VENTING INSTRUCTIONS must be observed without fail.