17 00 005 Draining and topping up coolant (N12, N16)

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

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

FOLLOW NOTES FOR CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM.

After adding coolant, check cooling system for water 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 2 051.

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

Fig 2: Releasing Spring Strap On Lower Coolant Hose Using Special Tool (17 2 051)

Courtesy of BMW OF NORTH AMERICA, INC.

Observe CAPACITIES .

Observe mixture ratio of 50% antifreeze and 50% water.

FILL AND BLEED COOLING SYSTEM .

CHECK COOLING SYSTEM FOR LEAKS .