17 13 030 Removing and installing/replacing coolant filler neck (S63, B44 T 0)

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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

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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 Hoses On Coolant Filler Neck

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Top up COOLANT .

CHECK COOLING SYSTEM FOR LEAKS.