Hi guys. Quick question. Mk5 2.0 dielsel had a flat battery today. It had a 75ah EFB battery.
I replaced it with a 70ah AGM as the battery was considerable cheaper.
would this 5ah change a big deal?
If you car has stop/start then you should fit an EFB battery. They are specifically designed for the stop/start process. Having said that, good quality AGM may be fine. To answer your initial question, going from 75 to 70 is not a big deal.