I've sat in traffic this past summer in my 300E when it was almost 100F outside and when it got to about 92C the massive electric fans powered up and brought it back down to about 85C before they shut down, it continued this cycle the whole time I was sitting. As soon as I was moving again the engine fan was in full force until it was back down to about 82C then it was quiet again. Makes no sense why the 300 diesel inline 6 would run so warm, it generates a lot less waste heat than its gasser cousin.....

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