Hi. I bought a 2020 Zoe recently and have found 'serious' pending confirmed ODB errors P1B20 ( battery pack or battery control unit issue) and U2143 ( control unit). There are no warning lights on dashboard. Has anyone had similar issues and should I be worried? Also, having read the forums I'm reluctant to ask Renault to diagnose more fully and spend £170 if they deem this insignificant and not something they would cover under warranty. I'd prefer to return the car to dealer and get my money back. Many thanks for reading.