Question about 1985 Mercedes-Benz 300

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Car running hotter then usual

I recently replace the thermostat & now the car is running hotter than before...it's not OVERHEATING just running hotter...can anyone tell me if this may be a problem?

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  • Dana Rudd Feb 19, 2009

    I got the thermostat at the Mercedes dealer...coolant level is fine

  • jrhinoh
    jrhinoh Oct 07, 2012

    probably just a hotter thermostat than the one you had as long as its not overheating it should be fine thermostats come in different degrees like 150 180 or maybe even hotter

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Sounds like wrong temperature range thermostat , or new defect , i only use stant thermostat , also double check coolant level , almost always air traps after coolant service

Posted on Feb 19, 2009

  • c38hot Feb 19, 2009

    compare dash reading with scan tool or infrared temp gun pointed just behind thermostat when hot , if different then find correct running temp and compare , with temp gun and dash temp , may be false reading in dash

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