Battery shows 12.3 when the car is off. Shows 14V when the car is running which means it is being charged.

I just had the battery professionally charged. Picked it up this morning. Shows 12.93V when car is off which is good. However, the car is still struggling to start, just couple hours after being taken off the charger.

Could it be that the Starter is going bad?

So you are saying that I should get OEM Genuine BMW parts and not those "High-Performance" coils. I think original parts are better but just wanted to hear other opinions. I will replace them with original parts.

I understand that you can't be sure the coils are going to solve my problem but if you say they should be replaced after 60,000 miles, then it is time. I have a little over 100,000. I show some misfires but thought it was because of LPG system.

Thanks for your help.