Drain the coolant from the high-temperature cooling system

Prerequisite

Switch off ignition.

Preliminary work

Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVE RESONATOR .
Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR AND THRUST FIELD RESPECTIVELY .
Refer to REMOVING THE STIFFENING PLATE .

WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

NOTE: TECHNICAL INFORMATION
Immobilization period-long fill of coolant!
Do not reuse used coolant.
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be emptied and refilled.
In the case of other removal work involving the draining of part quantities of coolant, the coolant level must be topped up with new coolant.

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

Loosen sealing cap (1).

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

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

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up works

Refer to CONNECT THE COOLANT LINES FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT .
Refer to FILL THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT
Refer to VENT THE HIGH-TEMPERATURE COOLANT SYSTEM .
Refer to CHECK THE HIGH-TEMPERATURE COOLING SYSTEM FOR WATERTIGHTNESS .
Refer to INSTALL THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to INSTALL RESONATOR .
Refer to INSTALL ACOUSTIC COVER .
Refer to INSTALL THE THRUST FIELD .
Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .