[Thik]

So my car has about 35K miles. Drove fine since I got it, but today, when I pressed the 'start engine' button just like any other time, the car won't start.

Just a clicking noise, no cranking. Battery seemed fine with lights and radio on no problems. Called BMW roadside assistance, they sent a car over to give it a boost. An hour later, a Toyota Yaris came and tried to boost it.

This time the engine cranked, but was sputtering badly, then died after 5 seconds. Tried again, this time with the gas pedal depressed. Same thing, died after 3 seconds of struggling to stay alive.

Since the dealership is closed at this hour, they are going to tow it to the dealership in the morning.

Any idea what might be wrong? Would it be the battery? Gas is 3/4 full filled with Shell V-power 91 octane about 10 days ago. Drove the car about 20 miles two days ago and it was fine. It's not the cold temperature either since it's parked in an underground garage at above freezing temperatures.