Replace the external radiator

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Feed out and remove the holder (2) with rubber mount (1) from the auxiliary coolant radiator (3).

Courtesy of BMW OF NORTH AMERICA, INC.

Check the rubber mount (1) for correct fit on the holder (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Replace auxiliary coolant radiator (3).
Parts: Radiator
Feed the holder (2) with rubber mount (1) into the auxiliary coolant radiator (3) and install it.

Courtesy of BMW OF NORTH AMERICA, INC.