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Hyundai Kona 64KWh Premium SE, Kia E Niro first edition, Vauxhall e-Corsa se nav (on order)
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Discussion Starter #1
Anyone had a problem with their air con? Mine has packed in and the car was booked in for its 20k service in a corona proof service centre and the dealership alerted to the issue in advance. As usual on the first visit, it couldn’t be fixed and they want it back next week for a couple of days so an electric vehicle technician can look at it. They said “the pipe was heating up and the pump was making a strange noise” but they needed the electric specialist to have a proper look at it and he wasn’t due back off furlough until next week. I had noticed a slight fluttering noise before I realised it had stopped producing hot air and I remember my old Honda CRV used to make the same noise before the compressor imploded.
 

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Kona Electric, EU base with heat pump
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426 Posts
One report of a failure in NZ out of about 1,000 Konas, see image below.
130854
 

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Mine stopped working last year (no coolimg / no heating) . Blown fuse which they replaced. But they haven't found what caused fuse to blow.
 

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I had about 29000 km in the odometer this spring when I noticed that the AC was blowing warm air, had a mechanic take a look and did the 30k maintenance check at the same time, verdict was that the refrigerant had either leaked or the system was undercharged from the beginning but there was 7g of refrigerant left in the loop when 1kg was expected. They did a pressure / leak test and found no leaks so recharged the system and told me to bring it back if the problem crops up again.

Anyone had a problem with their air con? Mine has packed in and the car was booked in for its 20k service in a corona proof service centre and the dealership alerted to the issue in advance. As usual on the first visit, it couldn’t be fixed and they want it back next week for a couple of days so an electric vehicle technician can look at it. They said “the pipe was heating up and the pump was making a strange noise” but they needed the electric specialist to have a proper look at it and he wasn’t due back off furlough until next week. I had noticed a slight fluttering noise before I realised it had stopped producing hot air and I remember my old Honda CRV used to make the same noise before the compressor imploded.
 

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Hyundai Kona 64KWh Premium SE, Kia E Niro first edition, Vauxhall e-Corsa se nav (on order)
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81 Posts
Discussion Starter #5
Forgot to update forum re this matter. The car needed a new compressor which is unique to the electric car. Arrived in just under a week and was fitted and now working perfectly again. A bit worrying in a car less than 2 years old but that’s what the warranty is for I suppose. Car faultlessly reliable otherwise.
 

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Refrigerant was almost empty at 1st service. Rarely use AC so could have gone at any time. Garage refilled and pressure tested and I was told to monitor. 5 weeks later it has failed. Lost all the refrigerant again. When they fill and pressure test it shows no leak again so I am again told to monitor. They say that if the pressure test holds, Hyundai won't instruct further investigation. There's clearly a fault and I expect to be back with no AC shortly. Groundhog Day. Any suggestions?
 

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2020 Corsa E
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Is there an AC pipe that runs inside coolant? I'm assuming that could leak but pass pressure test maybe? Pure guess :)

Pretty poor though as it's clear there is a leak so their pressure testing methodology must be inadequate.
 

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Kona Electric, EU base with heat pump
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Very possibly the BMS heat exchanger and the coolant system does not appear to be pressure-sealed, although such a metallic leak might not close up again like a rubber seal might.
The cases reported in forums of the heat pump system failing or leaking refrigerant are still very few in the big picture.
 
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