My 2008 Range Rover spirt HSE blues cold air on the drivers side and warm on passenger side. I freeze in the winter and use a blanket while driving. I’ve had it looked at once with no results. Anyone have any answers that might help? Thanks

 

its the heater core, it gets clogged up and makes the drivers side cold, it super weird, you think it would be the mixing door but more than likely it's the heater core. google heater core flush for instructions on how to clean it out and get it warm again.