147 cooling system bleeding - Alfa Romeo Forum
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147 cooling system bleeding


I have just changed the termostat on my 2.0TS 147. I understand that the cooling system self bleeds, does anyone know how long it would normally take for the to have bled fully, as at the moment I topping it up the last 3 times i have checked the level. I can see an obvious leak but of course there may be one.


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Re: 147 cooling system bleeding

I think there's a bleed screw somewhere - open that & make sure that coolant comes out of it, then try 'burping' it - from cold, take the header tank cap off & run the engine for a few minutes, until the thermostat opens. That will most likely release a big air bubble.
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Re: 147 cooling system bleeding

There are two bleeding points. Best have these open when filling.

One on the radiator. Top off side (left of the radiator as you lean over the bumper).

One on the coolent pipe to the right of the thermostat (sticks out like a thump).

Make sure the rad one is closed properly (I didn't oops).

The other thing you can do is squeeze all the larger coolant lines. Helps removed some of the air (it there is any trapped).

Have fun.

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Re: 147 cooling system bleeding

I know how you feel. Replaced my thermostat last month and still constantly topping up. (500ml a week at the moment). hopefully should stop now that one of the hose clips has been tightened properly (oops).
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Re: 147 cooling system bleeding

To add to what the others have said, it helps if you open up the heater to hot, get the front of the car higher up, park it on a slope or jack up the front and gently squeeze the top and bottom hoses as well.
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