Bleed and fill the cooling system for the charge air cooler with the vacuum filling unit (X6 M)

Special tools required: 

• 00 2 030

Note on ordering: 

• applicable BMW Workshop Equipment catalogue
• No.- 81 93 2 152 473

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.

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Vacuum filling unit consists of: 

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

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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 MIXTURE RATIO .
  • Observe capacities. See the Fluid Capacities tab for the selected vehicle.
• 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).

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

(X) Expansion tank connection

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Connect venturi nozzle (1) to filling unit (2).

(X) Expansion tank connection

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Connect compressed air (1).

(X) Expansion tank connection

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Open shutoff valve (B).

The venturi nozzle produces a flow noise.

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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.

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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.

Then close shutoff valve (B) again.

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

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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.

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

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

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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.

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Remove vacuum filler device with adapter from expansion tank.

Adjust coolant level to maximum.

Close coolant expansion tank.

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After the cooling system has been filled with the vacuum filling unit, another bleeding procedure must be performed for the following vehicles: 

• F15 F16 N63 B40/B44 O 1 .
• F85, F86 S63 B44 T 2 .

Close charge air cooler expansion tank.

Adjust coolant level to maximum.

Check cooling system for charge air cooler for leaks.