Isn't the fabulous BMW road side assistance valid only as long as the warranty is valid? The bike is a 2018 and could be out of warranty.Not to fear Gillard!
You are just experiencing your 310 initiation protocol: Alternator Failure.
Well, at least that is what I guess it to be. You'll want a proper diagnosis to confirm - I had my used bike from BMW for 7 months, with continuous daily riding AND the use of an Optimate battery charger (plugged in overnight, every night) before my bike failed to start one day.
You should get BMW Roadside Assistance with every BMW purchase in the UK. Not sure of the availability of services across the globe. They can check the charge output when the engine is running (after boosting or using an alternate battery source). Which will confirm or deny that path of diagnosis.
If you want more information, this topic is packed across the site. Just search "Alternator".
All the best with your repair!
P.S. this repair isn't so bad, my courtesy car (as they didn't do courtesy bikes :[ ) I had a brand new 320i xDrive for 4 months just as the snow hit. Heated seats do trump heated grips in my opinion. Handed the keys back as the frost thawed. The 310 hasn't had any issues 12 months later. I assume they've upgraded the part now.
The roadside assistance can be extended past the warranty. I've kept mine going as it's the best value road side assistance here, and they use specialised bike recovery vehicles.Isn't the fabulous BMW road side assistance valid only as long as the warranty is valid? The bike is a 2018 and could be out of warranty.
After connected to the charger overnight I got few minutes to crank it up and it started on the second go.
Update: bike starts three days in a row with no issues.
I'll watch and wait on this. As others said, battery was looking okay, but then it started after putting on the charger.
@J4ehill really hope it's not your issue!
Great tip. Mine is finishing in 5-6 weeks...end of 2021.The roadside assistance can be extended past the warranty. I've kept mine going as it's the best value road side assistance here, and they use specialised bike recovery vehicles.