17 00 039 Venting and filling cooling system with vacuum filling unit (Version 2)

WARNING: This page is about a different variant/trim than selected.

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

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

Note on ordering:

Workshop equipment
Workshop equipment catalogue
No.- 81 93 2 152 473

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

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

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.

NOTE: Following graphics shows F01, procedure for other model series is identical.

Vacuum filling unit consists of

1) Filling unit with vacuum meter and shut-off 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)

Fig 2: Identifying Vacuum Filling Unit Components

Courtesy of BMW OF NORTH AMERICA, INC.

Preconditions

Cooling system expansion tank 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 COOLING SYSTEM - OPERATING FLUIDS .
- Observe mixture ratio.
- Observe FILLING CAPACITIES .
Position the filling unit container at the same height as the coolant expansion tank.
Compressed-air connection with 6 bar pressure present.
Set heating to maximum temperature.

Application

Connect filling unit (1) with adapter (2) 17 0 113 to coolant expansion tank.

Shut-off valves (A) and (B) must be closed.

Fig 3: Identifying Coolant Filling Unit With Adapter And Shut-Off Valves

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 4: Identifying Coolant Filling Unit With Venturi Nozzle

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Connect compressed air (1) and open shut-off valve (B).

The venturi nozzle produces a flow noise.

Fig 5: Identifying Venturi Nozzle With Shut Off Valves

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Then open shut-off valve (A) until filler hose (1) is filled without bubbles. Close shut-off valve (A) again. This vents the filler hose (1).

Fig 6: Identifying Coolant Filling Hose With Shut-Off Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Shut-off valve (B) remains open. Approx. 1 minute. Generate vacuum in cooling circuit. The end vacuum is reached at a vacuum of -0.7 to -0.95 bar. Green scale in vacuum meter.

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

Then close shut-off valve (B) again.

Fig 7: Identifying Coolant Shut-Off Valves With Vacuum Meter

Courtesy of BMW OF NORTH AMERICA, INC.

Both shut-off valves (A) and (B) must be closed. Then seal venturi nozzle (1).

Fig 8: Identifying Venturi Nozzle With Shut Off Valves

Courtesy of BMW OF NORTH AMERICA, INC.

The cooling system must maintain the vacuum for 30 seconds. 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 9: Checking Cooling System For Leaks

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 filling unit container at the same height as the coolant expansion tank.

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

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

Coolant is now added.

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

Fig 10: Identifying Cooling System Shut-Off Valves