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Old 01-24-2023, 03:20 PM
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wpoll wpoll is offline
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Join Date: Sep 2015
Location: South Island, New Zealand
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Check the viscous fan hub isn't "frozen" and spinning the fan at full speed at all times. These viscous couplers have a number of different failure modes... mine had a bearing failure but they sometime don't spin or sometime always spin. The coupling should be temp dependent and not spin (much) when the engine is cold.
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2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
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