Sugar Bear asked for the pressures. Saying that they are good doesn’t give us what we need to offer better help.

The purpose of the electric fan is to prevent excessive high side pressure. I think chasing the electric fan operation is a worthwhile pursuit, but I think there could be something else going on that is leading to your symptoms. Having the pressures gives us more information to help you with.

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2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

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