Well, where did you learn this? There were no F-Types built with a battery in the front - to begin with, there is no room for a battery in front (!). The two battery cars had both batteries in the trunk area, main battery to the left, second battery (related to the start/stop system) to the right.

 

With respect, I did not misunderstand. You put a new battery in, but the problem remains. I suggest that the new battery may not be fully charged - and they are almost NEVER fully charged at purchase; further, you ran the battery down while installing the VAP tune, correct? Anything less than a full charge can cause random electrical misfunctions. There might be a different cause but you must eliminate low battery voltage FIRST. Alternator issue? possibly, if the is an oil leak from the front timing seal dripping oil on the alternator. If there is no leak, a problem with the alternator would be very rare. Battery first!

 

At least two people think they have a secondary battery in the engine bay ...
https://www.ftypeforums.co.uk/viewto...p=49542#p49542

 

Well, if we depend on what "people think" then we might believe that Covid-19 is a myth. It isn't a myth, but the idea of a front battery in the F-Type is. The people in question at the UK site have mistaken the front charging points for a battery. They are uninformed and the opinions of the uninformed have no value. They do nothing but obscure the facts. The F-Type batteries (or battery in the later cars) are (is) in the rear. One other thing that is not a myth is that low battery voltage in modern cars presents very often as random system failures - warning lights, frozen touch screens, windows, seats, locking mechanisms, climate controls malfunctioning ...all of which depend on electronic modules that need full battery voltage. People often think that because they have bought a new battery, the battery is therefore not a suspect. This is wrong. New batteries are almost NEVER fully charged on installation so any fault caused by low battery voltage may be/will be continued.

 

Yep, they are confused, they even link back to a separate thread on this forum as "evidence" of the secondary battery being in the engine bay and looking through that thread (where I have a few posts) I don't see any such "evidence".