when it is hot outside the engine temp goes higher when it is cool it hovers at a little higher than 100 C what is wrong?
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1996 Mercedes-Benz E320 Question: when driving the engine temp goes up to 120 C when the air is on
Answer #1patrick mannion from Greg Solow's Engine Room, September 07, 2011, 23:46Master
It could be many things, unfortunately and without experiencing the problem first hand or being able to do some basic diagnostic tests its hard to say. It could be a weak fan clutch, a thermostat that is not fully opening, a restricted radiator (not allowing coolant to circulate through all the cooling tubs of the radiator) or even the possibility of a mildly blown head gasket. Hard to tell without being able to do some basic tests.
Replycowboys22, September 08, 2011, 18:53Rookie
thanks Patrick! I will do that right away...
Answer #2PRESTONFITZ from Honest 1 Auto Care, September 08, 2011, 10:15Technician
Patrick hit the nail on the head. I would recommend having your vehicle diagnosed sooner rather than later to avoid damaging any other components.