17 00 005 Draining and topping up coolant (N14, N18)

Special tools required:

17 2 052

WARNING: Risk of scalding!
Only carry out repair work on the cooling system after the engine has cooled down!

IMPORTANT: Wear protective gloves and safety goggles.

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!

Necessary preliminary tasks:

Follow notes for CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM .

After adding coolant, check the cooling system for leaks.

Draining coolant:

Unscrew sealing cap (1) on coolant expansion tank.

Fig 1: Identifying Sealing Cap On Coolant Expansion Tank

Courtesy of BMW OF NORTH AMERICA, INC.

Release spring strap on lower coolant hose (1) with special tool 17 2 052 .

Detach coolant hose (1). Drain, catch and dispose of coolant.

Fig 2: Releasing Spring Strap On Lower Coolant Hose Using Special Tool 17 2 052

Courtesy of BMW OF NORTH AMERICA, INC.

Adding coolant:

Observe filling capacity. See COOLANT, COOLING SYSTEM TEST (N16) or COOLANT, COOLING SYSTEM TEST (N14, N18) .

Observe MIXTURE RATIO .

Fill and bleed COOLING SYSTEM .

Check cooling system for LEAKS .