Draining the coolant for the low-temperature coolant circuit

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

Open the lid (1) on the coolant expansion tank.

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Unlock the coolant hose (1) at the auxiliary coolant pump and detach it.
Catch and dispose of leakage coolant.

Courtesy of BMW OF NORTH AMERICA, INC.