Battery OEM Subaru or OEM Mercedes

I have a 2019 got a discounted replacement battery at the dealer and the new one is much larger (more powerful?).

I have a 2023 touring with the same problem. Dead battery multiple times within the first few months. The dealership put in a new larger battery (900 cca) Subaru brand, had to take out the factory battery tray to make room for it. No problems as of yet.

I have a 2023 touring with the same problem. Dead battery multiple times within the first few months. The dealership put in a new larger battery (900 cca) Subaru brand, had to take out the factory battery tray to make room for it. No problems as of yet.

Subaru OEM batteries can be pretty shit in cold weather. Even the service department at my dealership admits this. I eventually fed up with my Subaru batteries chugging in cold weather and replaced them with Interstate AGM batteries (with more CCA). I haven’t had any troubles since.

My car does not start well. I had replaced the battery myself, which helped it not be so bad.

It's a known issue that Subaru batteries fail much too early. Subaru began warranting great numbers of them a few years ago.... And they kept using "The same faulty batteries"!!! ...and they still are.

same issue with daily driver 2021 E63. In this case though, the car doesnt give me a warning as much as the Mercedes app on my phone - it alerts to low battery -even critically low, but when I get into the car it starts and there is no message.

Could be worse ... I bought a new 24 OB and within 3 months, the battery was replaced. Love the car, but crap batteries

Just bought a new G63, same issue!

I had this happen in my 2020 outback around 37k miles. Dead battery was the culprit. Fortunately I shut off all my electronics and lights and it had just enough power to get it to restart. I got the battery replaced by Subaru under the extended 5 year warranty from a settlement for premature battery failure. It failed right after my 36k service at the dealer I think the car was about 4 years old at the time.