It does not leak and I have removed it, cleaned it and flushed it with water until it came out clear.
I'll check the temperature using my laser sensor like you said.

Thanks guys

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k