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I have a 2008 Toyota Auris. Yesterday I was stuck in traffic, and I noticed that the temperature was getting high as time was passing by. At one point I had to stop because the temperature was at its highest point. When I opened the bonnet I could notice white smoke coming out of the radiator. I stopped the car and I let it cool down. When I opened the top of the radiator, a black jelly-like liquid came out of it. I let it cool for some hours and then I refilled the radiator with water, the temperature did not get very high but remained stable. The car worked perfectly well. Can you tell me what happened to my car, please?

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    Welcome to Motor Vehicle Maintenance & Repair! It sounds like you lost your fans, which then caused it to overheat. No clue what the "black jelly-like liquid" is, but assume it must be engine oil, which would mean a blown head gasket. Sounds like it needs major surgery at this point. – Pᴀᴜʟsᴛᴇʀ2 Feb 16 at 16:45
  • Take it to a good shop - there are tests that can be done such as CO2 in the coolant to see if the headgasket is blown... – Solar Mike Feb 16 at 16:56
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    "Black jelly like liquid" sounds like a mousse of oil, water, and exhaust gas - and the one-word technical term for that is likely to be "expensive," unfortunately. – alephzero Feb 16 at 17:31
  • @SolarMike - I believe the tests for blown head gaskets you are talking about look for hydrocarbons in the coolant, which there should be absolutely none of if things are ship-shape ... but that's probably pedantic. – Pᴀᴜʟsᴛᴇʀ2 Feb 16 at 18:11

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