Peugeot 3008 battery sensor issue

I have a Peugeot 3008 as well. Those symptoms sound very familiar. I remember noticing the same things – sluggish starts especially on cold mornings, and the interior lights would dim randomly. Have you checked the battery health with a multimeter?

I did check the battery, and it seems okay when the engine is running, holding a decent charge. It's just these intermittent weak starts. Was it definitely the sensor for you, or could it be something else?

In my case, it was definitively the battery sensor. After replacement, everything went back to normal. Given your symptoms and the diagnostics pointing to the sensor, I would suggest consulting with a trusted mechanic to confirm the diagnosis. Ignoring it could potentially lead to further issues.

Thanks for the confirmation. I had the battery sensor replaced. Cost me 315€, but it seems to have solved the problem. No more weak starts or flickering lights!