17 11... Bleed and fill the cooling system for the charge air cooler with the vacuum filling unit (N63)

Special tools required:

00 2 030

IMPORTANT: Lifetime coolant filling: Never 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 drained and refilled.

IMPORTANT: In the case of other removal work involving the draining of part quantities of coolant, replace these quantities which have been drained with new coolant.

IMPORTANT: You must protect the alternator against contamination before carrying out any repair work on the cooling circuit. Cover alternator with suitable materials. Failure to comply with this procedure may result in an alternator malfunction.

Note on ordering:

No.- 81 93 2 152 473

IMPORTANT: Risk of slipping due to coolant on the floor.
Danger of injury!

Catch and dispose of emerging coolant in drip tray (1) and if necessary special tool 00 2 030 (universal hydraulic lifting equipment).

Recycling:

Observe country-specific waste disposal regulations.

Fig 1: Identifying Drip Tray And Special Tool (00 2 030)

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Check all the coolant hoses before filling the cooling system with the vacuum filling unit.
If necessary, replace damaged and porous coolant hoses.

Vacuum filling unit consists of:

Fig 2: Identifying Vacuum Filling Unit And Related Components

Courtesy of BMW OF NORTH AMERICA, INC.

Filling unit with vacuum meter and shutoff valves
Filler hose
Coolant container
Venturi nozzle
Compressed air connection (max. 6 bar)
Outgoing-air hose (lead outgoing-air hose into a collecting container)

Preconditions

The expansion tank of the cooling system for the charge air cooler must be empty.
There must be sufficiently premixed coolant in the filling unit container, 1 - 2 liters more than the vehicle filling capacity.
- Use only recommended COOLANT .
- Observe appropriate water/antifreeze mixture ratio.
- Observe CAPACITIES .
Position the vacuum filler device container at the same height as the coolant expansion tank.
Compressed-air connection with 6 bar pressure present.
Set heating to maximum temperature.

Select adapter (Y) according to table and connect to coolant expansion tank.

Connect filler unit to adapter connection (X).

Fig 3: Identifying Adapter And Adapter Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Shutoff valves (A) and (B) of the filling unit (1) must be closed.

(X) Expansion tank connection

Fig 4: Identifying Filling Unit Shut-Off Valves

Courtesy of BMW OF NORTH AMERICA, INC.

Connect venturi nozzle (1) to filling unit (2). (X) Expansion tank connection

Fig 5: Connecting Venturi Nozzle To Filling Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Connect compressed air (1).

(X) Expansion tank connection

Fig 6: Connecting Compressed Air Line

Courtesy of BMW OF NORTH AMERICA, INC.

Open shutoff valve (B).

The venturi nozzle produces a flow noise.

Fig 7: Opening Shut-Off Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Then open shutoff valve (A) until the filling hose (1) is free of bubbles.

Close shutoff valve (A) again. The filling hose (1) is vented in this way.

Fig 8: Opening/Closing Shut-Off Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Shutoff valve (B) will remain open. Generate vacuum in coolant system for approx. 2 minutes. The end vacuum is reached at a vacuum of -0.7 to -0.95 bar. Green scale on the vacuum meter.

NOTE: The coolant hoses contract during vacuum build-up.

Then close shutoff valve (B) again.

Fig 9: Checking Shut-Off Valve Closing Time

Courtesy of BMW OF NORTH AMERICA, INC.

Both shutoff valves (A) and (B) must be closed. Then seal Venturi nozzle (1).

Fig 10: Closing Shut-Off Valve

Courtesy of BMW OF NORTH AMERICA, INC.

The cooling system must hold the vacuum for 30 s. If the needle in the vacuum meter falls, this indicates a leak in the cooling system.

If the vacuum remains constant, proceed with filling.

In event of leaks, check cooling system for leaks.

Fig 11: Testing Cooling System Vacuum

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: There must be sufficiently premixed coolant in the filling unit container: 1 -2 liters more than the vehicle filling capacity.
Position the vacuum filler device container at the same height as the coolant expansion tank.

Fig 12: Opening Shut-Off Valve To Filling Unit Container

Courtesy of BMW OF NORTH AMERICA, INC.

Shut-off valve (B) remains closed during the filling process.

To fill the cooling system, open shutoff valve (A) to filling unit container.

Coolant is now added.

The filling procedure is finished when the needle in the vacuum meter is at 0 bar or no longer falls.

If necessary, reduce remaining vacuum. Open shutoff valve (B) to do so.

Fig 13: Filling Coolant

Courtesy of BMW OF NORTH AMERICA, INC.

Remove vacuum filler device with adapter from expansion tank.

Adjust coolant level to maximum.

Close coolant expansion tank.

Fig 14: Adjusting Coolant Level To Max

Courtesy of BMW OF NORTH AMERICA, INC.

After the cooling system has been filled with the vacuum filling unit, another BLEEDING PROCEDURE must be performed.

Close charge air cooler expansion tank.

Adjust coolant level to maximum.

Check cooling system for charge air cooler for leaks.