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WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Open drain plug (2) on coolant expansion tank. Tightening torque, see 17 00 2AZ in COOLING SYSTEM - TIGHTENING TORQUES .

Fig 1: Locating Drain Plug On Coolant Expansion Tank And Bottom Of Radiator

Courtesy of BMW OF NORTH AMERICA, INC.

Open drain plug on right of engine block. Drain, catch and dispose of coolant.

Installation:

Replace seal.

Tightening torque, see 11 11 5AZ in ENGINE - TIGHTENING TORQUES .

Fig 2: Locating Drain Plug On Right Of Engine Block

Courtesy of BMW OF NORTH AMERICA, INC.