Only when refilling!

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Use only RECOMMENDED COOLANT .

Observe MIXTURE RATIO .

Perform filling operation slowly.

Adjust coolant level to MAX.

Fig 1: Identifying Coolant Level To MAX

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Close coolant expansion tank.

Installation:

Close cap (1) until the arrow marks line up.

Fig 2: Locating Cap Of Coolant Expansion Tank

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: The following venting procedure is necessary e.g. when a part is replaced in the cooling system or when the cooling system is refilled.