94 325i temp gauge says its overheating, check engine light comes on, but coolant is full?

1994 BMW 325I
120,000 MILES
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DANTOLMAN
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After light driving of 10 minutes the temp gauge goes right to red. The second time it happened the check engine light came on. I checked the coolant, it seems to be full. Is this a sensor or what am I looking at here, thank you.
Apr 15, 2012 at 2:07 AM
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KHLOW2008
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If the coolant is full and does not seem to be bubbling or pressurised, it most probably is a sensor fault. You would need diagostic tools to check for trouble codes to find what if the MIL turning on is related to this.

Apr 15, 2012 at 5:47 AM