We've got a 2019 Land Rover Discovery Sport and the AC has started doing this weird thing where the driver side blows ice cold but the passenger side is noticeably warmer, almost like the dual zone system is confused. I've tried resetting the climate control by disconnecting the battery for a few minutes but no luck. A friend sent me a link with some detailed info about common Land Rover AC issues, I think it was https://caracrepairsharjah.ae/brands/land-rover/ but I'm still not sure if this points to a bad blend door actuator or something more serious like a low refrigerant charge affecting one side more than the other. Before I rip the dashboard apart or pay for an expensive diagnosis, has anyone here fixed this exact problem on a Discovery or Evoque? Would love to know what the actual fix cost before I go down the rabbit hole.
Driver ice cold with passenger side warm on a Discovery Sport dual zone system is almost always a passenger blend door actuator fault rather than a refrigerant issue. Low refrigerant affects both sides simultaneously rather than isolating one zone completely.
Battery disconnect reset is worth trying for climate control faults but actuator position faults on these Land Rovers usually require a proper module reset through diagnostic software rather than just a power cycle to clear.
Passenger blend door actuator on the L550 Discovery Sport is accessible without full dashboard removal in most cases. A specialist who knows these cars will confirm whether it requires partial or complete dash removal before quoting rather than assuming worst case.
Had almost identical symptoms on a 2018 Evoque last year. Turned out to be a faulty passenger actuator that the diagnostic software confirmed was not responding to commands. Replacement sorted it without touching the dashboard beyond removing the glove box area.
Getting a proper diagnostic scan showing the actual actuator position values before any physical work is the correct sequence here. That data confirms the fault and shows whether it is electrical, mechanical, or a calibration issue, which changes the repair cost significantly.
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