Question about BMW 330

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P1619 also code 174

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Hi David:

P1619 is a thermostat error, you likely need to replace it or you have a bad sensor. P0174 (I'm guessing that's what you meant, not just 174) is a bit trickier to troubleshoot. There is a good video here showing where to start:

Posted on May 20, 2014

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