17 13 030 Removing and installing/replacing coolant filler neck (N53, N63 B40/B44 O 0/1, N74)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2016 BMW 760Li, 2015 BMW 760Li, 2014 BMW 760Li, 2013 BMW 760Li, and 2012 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Drain COOLANT .
Remove ACOUSTIC INSULATION for bulkhead on left
Remove front left WHEEL ARCH COVER

Release screws (1).

Fig 1: Identifying Coolant Filler Neck Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and detach coolant hoses (1) on coolant filler neck.

Fig 2: Identifying Coolant Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and detach coolant hoses (1) on coolant filler neck.

Weave out and remove coolant filler neck.

Fig 3: Identifying Coolant Hose

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Top up COOLANT .

Visual inspection of cooling system for tightness.