17 00 005 Draining and adding coolant (N55)

Special tools required:

00 2 030

WARNING: Risk of scalding!
The repair work on the cooling system should only be carried out on an engine that has cooled down!

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 part quantities of coolant, replace these quantities which have been drained with new coolant.

Installation note:

Use only recommended coolant. See RADIATOR - OPERATING FLUIDS .

Observe mixture ratio. See RADIATOR - OPERATING FLUIDS .

Protective measures/rules of conduct:

Wear safety goggles
Wear protective gloves
Observe national/country-specific regulations

IMPORTANT: For dirt contamination of the cooling system (e.g. by engine oil), the cooling system must be rinsed with water until all dirt contamination is removed!

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

Catch and dispose of drained 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: Supporting Coolant Drip Tray Using Special Tool (00 2 030)

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary tasks:

Follow notes for CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM .
Remove front UNDERBODY PROTECTION .

Draining coolant:

Open sealing cap (1) on coolant expansion tank.

Installation note:

Close sealing cap (1) until the arrow marks line up.

Fig 2: Identifying Sealing Cap On Coolant Expansion Tank

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove cover (2).

Fig 3: Identifying Cover And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release hose clamps (1) and (2).

Pull off coolant hoses from coolant pump and drain coolant.

Installation note:

Note installation position of hose clamps.

Fig 4: Identifying Hose Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Adding coolant:
Use only recommended coolant. See RADIATOR - OPERATING FLUIDS .
Observe mixture ratio. See RADIATOR - OPERATING FLUIDS .
Observe CAPACITIES .
Observe bleeding instructions without fail.
FILL AND BLEED COOLING SYSTEM .
Visual inspection of cooling system for tightness.