Draining coolant

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2014 BMW Alpina B7L, 2014 BMW Alpina B7, and 2013 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Open sealing cap (1) on coolant expansion tank.

Installation note:

Close the sealing cap (1) until the arrows line up.

Fig 1: Identifying Coolant Sealing Cap

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For purposes of clarity, the fan cowl is shown removed.

Unlock and detach coolant hose (1) from radiator.

Drain, catch and dispose of coolant.

Fig 2: Identifying Coolant Hose

Courtesy of BMW OF NORTH AMERICA, INC.