car runs hot while idling or in heavy traffic

1999 MERCEDES BENZ CLK320
120,000 MILES
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JEWELSOFABRAHAM
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When traffic is inching along,the temperature guage moves up into the danger zone.As long as I am on the expressway, no overheating problems are experienced.Also, I would like to know if I can replace a bad alternator with a 115 Amp Bosch instead of the 150 Amp.
Aug 3, 2013 at 6:48 PM
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ASEMASTER6371
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The radiator fan motors are most likely not working. you need to have them looked at before you damage the motor from overheting

no, you meed to use only the alt for the vehicle.

Roy
Aug 4, 2013 at 1:40 AM