17 11 100 Removing and installing/replacing coolant expansion tank (N12, N14)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

NOTE: Follow instructions for working on cooling system

IMPORTANT: Make sure without fail that coolant hoses are correctly routed. Risk of damage due to sharp edges or chafing.

Release spring strap for hose (1) with special tool 17 2 052 and detach hose (1).

Release screw (2).

Release expansion tank (3) from rubber mount and raise slightly until lower coolant hose is accessible.

Fig 1: Identifying Expansion Tank, Hose And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and detach lower coolant hose (1). Catch and dispose of escaping coolant.

Remove expansion tank.

Installation:

Make sure bearing pin (2) is installed in correct position in rubber mount.

Fig 2: Identifying Lower Coolant Hose And Bearing Pin

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check coolant level