[dip555]

Hi, looking for some advice on my 2020 BMW 320i.
Car was in a minor front end collision about 6 months ago. Damage to front bumper, headlights, grill and a small bend in the front crash bar. Pedestrian protection system set off lifting the bonnet but no other damage behind the front crash bar. The car has been sitting since April just waiting on parts. Car was repaired a few weeks ago and driving perfectly apart from 1 of the headlights replaced being faulty. So took the car back to the body shop with a new light. Bumper was taken off and new light installed. Everything working as expected now but getting a drivetrain error on the idrive screen with slightly reduced power. Ignored this on the day thinking there may just be a loose connection at the bumper when the headlight was replaced which I would get round to sorting soon.
Then on second day of driving with the drive train error on I pulled the flappy paddle to shift manually and the car changed gear but started losing power immediately after and then the engine turned off. Now the engine starts and cuts out straight away. Scanned the car with 2 scanners which are giving different codes. Codes below

DTC: 804081, Drive readiness error: Production not possible
DTC: 804415, Remote control: battery undervoltage

213802 - Battery management steady state current - No load current fault
CD9204 - Communication with the component <Radiator blind> - LIN data bus message fault
CD9203 - Radiator blind - No LIN data bus communication
21B057 - Active cooling flap system - Batch errors
11A031 - Fuel pump - Pressure too low
11A038 - Electric fuel pump - No fuel/low power input
110001 - Output stage (High-pressure injector) - Pressure too low
11A605 - Fuel system - Inadequate delivery
120408 - Boost pressure control - Safety shutoff
216117 - Starter: Actuation - Fuel system fault detected
030E06 - Energy management: Energy availability - Load deactivation active
030E08 - Energy management - Upper start cap. threshold undershot

Grateful for any advice. Car was running smooth before and after the accident and the engine was smooth just before the time it shut off.

[snekjumpr]

Sounds like a dying battery.