![2018 Audi A3, after battery change nearly all lights came on the dash. Is this an ECM failure? : r/AskMechanics 2018 Audi A3, after battery change nearly all lights came on the dash. Is this an ECM failure? : r/AskMechanics](https://preview.redd.it/4lwj84wbwwo91.jpg?auto=webp&s=27cc54913eb7bd05f31744ec8e672f40456aee35)
2018 Audi A3, after battery change nearly all lights came on the dash. Is this an ECM failure? : r/AskMechanics
First drive: US spec Audi A3 Sportback e-tron plug-in hybrid; 83-86 MPGe with 16-17 mile EV range - Green Car Congress
First drive: US spec Audi A3 Sportback e-tron plug-in hybrid; 83-86 MPGe with 16-17 mile EV range - Green Car Congress
![Replacement car battery for Audi in Sydney and Melbourne. Ranked No.1 for Audi Car Batteries, with professional fitting and fast delivery. Every Battery are The Car Battery Experts. Replacement car battery for Audi in Sydney and Melbourne. Ranked No.1 for Audi Car Batteries, with professional fitting and fast delivery. Every Battery are The Car Battery Experts.](https://www.everybattery.com.au/images/Auto/Audi/Audi_A6.jpg)