Coolant: Service and Repair

Draining And Adding Coolant (COOPER S)

Warning: Danger of scalding, work on the cooling system should only be carried out when the engine is cooled down.

Recycling:
Catch and dispose of drained coolant. Observe country specific waste disposal regulations.

Note: Follow instructions for working on the cooling system.
After topping-up the coolant, vent the cooling system and check for coolant tightness. 17 00 039 Venting Cooling System and Checking For Leaks





Drain coolant:

Release pressure cap (1) on expansion tank.





Remove underguard.

Remove bottom hose connection on radiator (1).

Drain, catch and dispose of coolant.

Refit coolant hose (1).





Release vent screw in heater rail (1).
Heater bleed screw 4,5/6.5 Nm





Release vent screw (1) in top coolant hose.

Venting takes place during filling.





Add Coolant:

Fill coolant through expansion tank (1).

Tighten vent screws when coolant exits.
Expansion tank retaining nut
M6 5 Nm

Fill expansion tank to maximum level.

Start engine and allow to idle, top up expansion tank when level drops.

Continue to run engine, until the level ceases to drop.

Switch off engine.

Top-up expansion tank to max.

Note: Before filling, turn on ignition, set heater control to maximum temperature.

Set fan to low speed.

Perform filling operation slowly.

Use only recommended coolant.