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If car still overheats after changing the thermostat the water pump the headgaskets and the radiator what else would cause it to overheat?

From what you describe it sounds like you might have an air lock in your cooling system. I would recommend that you bleed any and all air out of the cooling system. The bleeder valve is located on top of the engine. Once engine starts to overheat or when you can hear bubbling back into the overflow bottle, turn car off and open bleeder valve. If you see bubbling you have air in your system. Bleed the system a couple of times and see if this helps.

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if it still overheats after that like my BMW 318 does you could be looking at a crack in the engine as i think that's my next option

but also check or renew your heater matrix and temp sensors and use a rad leak in your rad even though its a new one as the leak could be in the engine so might seal it

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โˆ™ 2011-09-12 21:17:06
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Q: If car still overheats after changing the thermostat the water pump the headgaskets and the radiator what else would cause it to overheat?
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