CL-Class (W215) 2000-2006: CL 500, CL 600

Engine stays hot for a long time after shutoff

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Old Dec 13, 2018 | 04:12 AM
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Engine stays hot for a long time after shutoff

I have noticed my 2003 CL600 stays hot for so long after I part it. We are now in the middle of winter. At night its in the 30's, I noticed that two to three hours after I have gotten home, my car engine is still hot, not warm. Does anyone else experience this?
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Old Dec 13, 2018 | 04:44 AM
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Originally Posted by MrTracy
I have noticed my 2003 CL600 stays hot for so long after I part it. We are now in the middle of winter. At night its in the 30's, I noticed that two to three hours after I have gotten home, my car engine is still hot, not warm. Does anyone else experience this?
yes it’s normal. There’s a lot of heat in those turbos

as long as your coolant temp is always below 100 and is at 80-95 most of the time you are fine
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Old Dec 13, 2018 | 09:15 PM
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Engine heat

Originally Posted by tusabes

yes it’s normal. There’s a lot of heat in those turbos

as long as your coolant temp is always below 100 and is at 80-95 most of the time you are fine
I didn't know that. I have never had an engine stay that hot for that long. I have also never had a turbo charged car before this one.
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Old Dec 14, 2018 | 01:02 PM
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if the turbos are bothering you, feel free to send them to me
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Old Dec 14, 2018 | 03:54 PM
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Originally Posted by MrTracy
I have noticed my 2003 CL600 stays hot for so long after I part it. We are now in the middle of winter. At night its in the 30's, I noticed that two to three hours after I have gotten home, my car engine is still hot, not warm. Does anyone else experience this?
I do not drive my 600 in the winter but I can assure you that it is ok. The V12 TT Engine produces tons of heat! These engines are also HUGE! Always remember to check your coolant as well!
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Old Dec 14, 2018 | 04:52 PM
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This engine has 4 gallons of coolant, 11 quarts of oil, and tons of parts that contribute to a huge thermal mass. It takes a while to warm up and a terribly long time to cool down, nature of the beast. Completely normal for it to still be quite warm 4 hours after shutdown.
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Old Dec 14, 2018 | 06:05 PM
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Originally Posted by ItalianJoe1
This engine has 4 gallons of coolant, 11 quarts of oil, and tons of parts that contribute to a huge thermal mass. It takes a while to warm up and a terribly long time to cool down, nature of the beast. Completely normal for it to still be quite warm 4 hours after shutdown.
WOW WOW WOW 4 gallons of Coolant? wtf?? It makes my S550 look like its not even trying. I must admit and please don't tell anyone. I prefer to drive the older Cl600 compared to the S550..
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Old Dec 17, 2018 | 10:42 AM
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I usually open the hood after parking it in the garage to help it to cool a little faster. It still takes many hours. My hope is that opening the hood will help prolong the life of some of the engine bay components. While you're driving there's some airflow, but when it's parked the engine compartment just bakes.
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Old Dec 17, 2018 | 04:50 PM
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Open hood

You are right.. I opened the hood when I got in and it cooled down in about 30-45 minutes


Originally Posted by Geraldius
I usually open the hood after parking it in the garage to help it to cool a little faster. It still takes many hours. My hope is that opening the hood will help prolong the life of some of the engine bay components. While you're driving there's some airflow, but when it's parked the engine compartment just bakes.
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