REP-TAT-P-1700-03 Drain the coolant from the high-temperature cooling system

WARNING: This page is about a different car, the 2018 BMW 340i, 2017 BMW 340i, and 2016 BMW 340i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Hot fluids.
Risk of scalding!

Conduct all work in the vehicle wearing appropriate personal protective equipment only.

CAUTION: Materials harmful to health.
Contact with fluids harmful to health!

Note and follow safety instructions on containers.
Conduct all work in appropriate personal protective equipment only.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

Preliminary work:

Refer to REMOVING THE FRONT UNDERBODY PROTECTION

Release the sealing cap (1) on the coolant expansion tank for the high-temperature cooling system.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock and loosen coolant line (1).
Drain, catch and dispose of coolant.

Courtesy of BMW OF NORTH AMERICA, INC.