bmw x5 heater control valve

[talljames]

Hi all, my X5 E53 2005 4.4i heating is not working. I suspect it is the heater control valve under the bonnet. I live in an area where I dont really need the heater. Do I really need to replace this unit if I dont need heat? or will it cause issues elsewhere?

thanks
James

[andrewwynn]

I'd be more concerned the thermostat is not working. I drove for months never achieving closed loop. Get a prepare scan/scanner. Mine will show me real time data for both sides of water valve and the heater core temps.


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[talljames]

Thanks for letting me know. I just happened to purchase a scanner some time ago. I will give it a try and let the forum know.

cheers