1997 BMW 318 gets hot at idol

1997 BMW 318
120,000 MILES • 4 CYL • 2WD • AUTOMATIC
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RED318TI
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  • 4 POSTS
i can drive it for hours and it wont get hot but if it sets at an idol for 5 to 10 minutes it starts to get hot. then i rev the engine or drive it and the temp go right back down. help going crazy.
Apr 25, 2008 at 10:17 PM
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RASMATAZ
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Replace the thermostat and make sure your coolant level is correct and the cooling fan is coming on.
Apr 25, 2008 at 10:36 PM
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RED318TI
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  • 4 POSTS
thermosatat was replaced befor i replaced head gasket do you think it still might be bad.
Apr 26, 2008 at 12:40 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Take it back out and test it Or leave it out and see what happens this will tell you something at idle on that time frame- How old is the radiator cap?
Apr 26, 2008 at 12:45 AM
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DOCHAGERTY
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  • 9,606 POSTS
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Is there a fan and a fan clutch driven off the water pump? If not replace them with part# 11-52-1-723-918 & 11-52-1-723-363
Apr 26, 2008 at 9:52 AM
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RED318TI
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  • 4 POSTS
the thermostat and where the hoses connect is all one piece i do have an old one. will that make it run cooler or hotter.
Apr 26, 2008 at 4:14 PM
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