Does anyone know how to remove and reinstall the starter battery? A note by the way: After a long research I found out that the Combo E with Start Stop were actually designed for AGM batteries, but very often were equipped with EFT batteries. After 2 1/2 years of operation, I would like to replace my EFT battery with a more durable AGM battery with identical electrical data (70Ah, cold test current: 760A). The battery management system is self-learning.