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bmwdavid54 08-13-2019 09:01 AM

Rad fan
Car runs great 2008 x3 149000 miles
When the ac is on the fan is at ultra high speed. Any thoughts? Car doesn't overheat with or without ac on. Help

marcozandrini 08-14-2019 05:21 AM

Rad fan
Sounds normal to me. The fan has power and a ground at all times. Its operation is controlled by the engine computer (DME).

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