I had a similar thing withy old p38n and it turned out to be corrosion on the inside of the main feed to the starter motor it woulds turn on etc but not crank then two minutes later it would try putting another cable from battery to starter not sure of the circuit on the l322 but just double it up cables from motor factors about a tenner - it may not be the issue but that was the problem I had apparently when the temperature varies the lead can pass less current worth a look

Good morning.

I have decided that one option to take the worry out of whether my car will start is by fitting a Battery Brain. I have seen this mentioned elsewhere on the forum and a friend fitted one to his Jeep recently, with great results.

Can you advise me, please. Does the BB kit work, is there room for it be fitted into the L322 engine bay, and can anyone tell me where I should connect the mysterious 'black wire', please?

Many thanks

Barry

Barry,
Not sure this helps now but I have had a few battery fails. The Bosch S5 simply wasn't up to the job. I purchased the AGM battery as fitted by JLR now. It's a different world, never failed and so far so good. Is this where I put the car details and a bit about myself ?........

Sorry bazwd I know this don't help, but why do we buy very expensive vehicles that don't work ?
It's as if we take it for granted that we'll have battery problems etc etc

I've been there mate, and I sympathize with you, it's like a battle of wills when you approach your motor thinking will it start today

Good luck

Thank you for your messages of support. This is the third battery l put on this car, bought after much research and good guidance from this forum. The battery works fine but it's the drain when the car's supposed to be silent that creates the problem. I travel abroad a lot with my work so the car is often parked up for days on end at the airport and baggage reclaim is always a fraught time wondering whether the damn thing will start. Yes l guess l could swap it for an Audi or a Dacia or something else but no car will have the same pull for me as FFRR so l have to live with it l guess.

Best regards

Barry