08 x5 e70 3.0 heat starts hot then turns cold....what cause

Asked by Guru95VY12 Nov 06, 2021 at 10:36 AM about the 2008 BMW X5 3.0si AWD

Question type: Maintenance & Repair

Heat gets cold after driving awhile...what causes that.

1 Answer

Demian answered 2 years ago

Your heater valve has failed. Very common problem on e70 chassis X5. A simple part, DIY type of repair if you own a box of tools. Look around online for a diy/guide. Mostly its obvious though with the exception of the procedure for bleeding the coolant pump after drain and refrefilluill coolant.

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