Jeremy3292
Active Member
The 2020 M3 LR EPA rating was 330 miles. 353 miles was the 2021 M3 LR EPA rating which has a different battery.
While you had the right idea with your recalibration, you need to let the car sit for more like 4-6 hours to calibrate with no sentry mode, no opening the app, no charging, nothing. Then charge to 100% until it says "Charge Complete" and see what the miles say. It may or may not help. You do not have a battery issue as batteries degrade over time especially in high heat areas; it is very normal. Also remember that the miles are just an estimate by the car's BMS.
While you had the right idea with your recalibration, you need to let the car sit for more like 4-6 hours to calibrate with no sentry mode, no opening the app, no charging, nothing. Then charge to 100% until it says "Charge Complete" and see what the miles say. It may or may not help. You do not have a battery issue as batteries degrade over time especially in high heat areas; it is very normal. Also remember that the miles are just an estimate by the car's BMS.