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Hey Guys I'm new to this forum I own a 2003 C320 4matic w/58,000miles and notice that my temp gauge is CONSTANTLY fluctuating between 80-100 degrees C. Is that normal??
 

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85 300SD, 82 euro 500 SEC, 78 450SL
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Short answer ---- Thermostat keeps engine at 80 min, elec engine cooling fan turned on by another thermostat at 100 max. So yes, engine can fluctuate between 80 and 100.
 
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