Join Date: May 2010
Location: Cape Town, South Africa
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I think I fixed it thus:
I started this morning with the engine cold. Then removed the two small black bleed screws from the elbow that connects to the expansion tank and the other above the pipe just in front of the sound cover on top of the engine.
Removed the coolant filler cap. Turn on the ignition but don't start the engine
Turn the heater knob all the way up and put the fan on no 1
Then pour mixed coolant into the expansion tank until coolant runs out of the bleed screw hole (first the expansion tank, then the top bleed screw)
Replace the bleed screw/s and check the coolant level in the expansion tank.
Now start the engine but don't replace the cap yet
Allow the car to idle until normal operating temperature is reached. Observe the bubbles that appear on top of the water just below the level of the expansion tank inlet, close it when the bubbles stop appearing (this took 15 mins)
Allow the motor to cool (3-4 hours) and top up the coolant level again.
Since then, I took it for a drive (20km) and will check tomorrow, but the water level light has not come back on.