Need some advice.
This is for the e46 m3. Car has been parked up since november. A new battery which was 6 months old fitted. It had not been driven and not started for a 2 months. Battery died and when i came back to start it. It would not. This was in january
So jump started it. It started and let it run for 10-20 minutes. Drove it up and down the road too. Switched it of and tried to start it again. Would not at all. Dash lights would flicker.
Changed the battery to a bosch one from ECP. Started straight away.
Came back this weekend. Tried to start it and it wont start. So decided to jump start it again and drive it up and down the road. Let it run for 15 mins again. Switched it off and it wont start again.
Checked the Volts on it and it was 13.3 volts while running. Will check it now how it is with out the car running.
Got warrenty on the battery. Car will be moved to coventry, end of the month. So will be used more often.
Anyone know the cause. Starter motor has been replaced in september. Thinking it could be the alternater.