Installing coolant expansion tank for the high-temperature coolant circuit

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

Feed in and install coolant expansion tank (3).
Lock the lock (2).
Connect coolant hose (1) to the coolant expansion tank and audibly lock it.

Connect coolant hose (4) to the coolant expansion tank and audibly lock it.

Courtesy of BMW OF NORTH AMERICA, INC.
Check plug connections for residual coolant and remove residual coolant if necessary.
Make sure that the coolant expansion tank is inserted in rubber mount (3).
Pin up connector (1) and lock audibly.
Connect and audibly lock coolant hose (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALL THE FRONT SECTION OF THE LEFT FRONT WHEEL ARCH COVER .
Refer to ATTACHING THE FRONT LEFT WHEEL .
Refer to FILL THE COOLING SYSTEM WITH THE VACUUM FILLING UNIT .
Refer to VENT THE HIGH-TEMPERATURE COOLANT SYSTEM .