Yes placing a demand on the steering system will also force the engine to restart. For many many years now, I've bought and fitted a plug in 12V DC voltmeter - Chinese made bought via ebay, having one of them does let you see what is going on wrt the charging voltage, okay these cheap - roughly £5 voltmeters will not be extremely accurate - but in my experience, they are good enough to let you work out things like why the auto stop/start is or is not operational. The battery life of the original EFB battery depends a lot on how the car has been used over its lifetime, for reference (maybe) my wife's August 2015 VW Polo 1.2TSI never had any issues with its original battery, but I had fallen into the trap of "everyone says that these EFB batteries fail quite quickly" so I bought a new "next size up" Bosch AGM battery really to be ready to swop when the original battery failed at an inconvenient time during the winter. Well that just did not happen, so after storing it and "topping it up" every few months, for a "few" years, I ended up replacing the original Exide EFB with this "one size up" AGM when the car was 10 years old. My older daughter has a May 2019 SEAT Leon Cupra, again it has an Exide EFB and when I last tested it with my CTEK battery tester, it still looks very very healthy - which is okay, I'd doubt if she ever disables auto Stop/Start and only connected it to a CTEK charger during Covid lock down period. My younger daughter has a May 2019 SEAT Arona "bells and whistles" version - they badly under use that car and it bit them in as much as they needed to call the AA out to fit a replacement EFB battery after the original Exide EFB became unuseable - that was maybe 3 winters ago.
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rum4mo · 34 minutes ago 34 min