1995 BMW 525i Over heats

1995 BMW 525I
18,000 MILES • 6 CYL • 2WD • AUTOMATIC
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H3CKZ
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  • 2 POSTS
My BMW over heats I change the radiator sand thermosta and still heats up steam comes out is it cause I use water insted of colent
Jul 26, 2010 at 12:25 PM
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BLUELIGHTNIN6
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water should still do the job of keeping engine cool, although it is not nearly as good as coolant becaues it does boil quicker and also can rust up the inner parts of the cooling system. this would be the first thing to replace, even if it doesn't help the overheating it still needs replaced , in my opinion. make sure the radiator cooling fan(s) come on properly and that there is no air in the cooling system.
Jul 26, 2010 at 7:04 PM
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DOCHAGERTY
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  • 9,606 POSTS
  • ASE Certified Mechanic
And bleed out all the air, the screw on top of the radiator expansion tank.
Jul 26, 2010 at 10:33 PM
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