Cooling fan not coming on when AC is off

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10-03-2009, 06:07 PM

Dainos

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Cooling fan not coming on when AC is off

Cooling fan(95 850 turbo) works as it is supposed to when the AC is on. However, I was in some traffic and coolant started coming from the green cap.Any idea whe could be the cause of this issue?

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10-03-2009, 08:09 PM

confused_al

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Very likely your ECT sensor gone bad.

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10-03-2009, 08:30 PM

JPN

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The cooling fans run at all times whilst the A/C compressor is on. Then they turn on when the coolant reaches certain temp. If your coolant spewed out, either the coolant temp signal did not reach the ECU due to a bad ECT sensor as stated above, or something else.

JPN

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