After three and a half years of trouble-free motoring... the IONIQ 5 is - for the first time - back with the dealer for a warranty repair.
The symptoms are that charging stops sooner than expected, with the instrument cluster shows 100% battery. This is blatantly incorrect, as can be seen from the amount of kWh charged on the payment receipt from the public charger.
The Hyundai forums say that this is the result of cell imbalance. The battery may just need to be rebalanced, or the reason could be a faulty cell.
I am aware that the recommendation is to charge the car to 100% at least once a month, which will balance the cells, and I have been doing that ever since I got the car. So it's odd thar the car should have this problem (unless a cell has failed).
In the meantime, the dealer carried out a health check and sent me photos showing that the windscreen wipers need replacing, and the the rear discs also need replacing because they are... corroded (presumably due to low use).
The good news:
- Hyunday provide 5 years warranty for the car and 8 years warranty for the battery.
- My business lease includes 'full maintenance pack' which covers all services and all repairs, including windscreen wipers and brakes.
- At no point prior to - or during - the booking process has it been suggested to me that I may need to incur the cost of diagnostic 'if the issue turns out to be not covered by warranty'
I did enjoy the Mercedes much more than I do the Hyundai. But the extended warranty and no-BS service are certainly a plus for the Hyundai.