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Currently have a MB EQS that’s fantastic for about 1/3 of what it cost new.
I have a 2020 GLB250 and mine was saying "12V battery" on and off for a few weeks. I checked under the hood with a multimeter and my main battery did have a low voltage while the car was off. I replaced it a few weeks back. No more notification.
I had the same issue on my w213 - same warning every now and then until one day it just didn’t start. Replaced the battery and solved the issue.
Historically, OEM Mercedes batteries are really good and last many years.
Its an AGM battery, once it gets depleted heavily this happen. Just replace it. The factory batteries are made by exide or varta so just seek out a same spec replacement from those brands
Everyone's suggesting things that might save you half a percent or so, but no one has pointed out that by driving at 80mph, you lose *around 30% more battery* than if you were doing 70mph over the same distance
m.b. buy a Benz battery?
In the 166 body MB ML/GL, its under the passenger seat, with barely enough room to reach the rear terminal. It's also so far forward that you can barely grab the fuckin thing. Oh, did I mention that it is a group 49 battery.
its surely a dead battery, the fuckall exide batteries that they give are dogshit. had the same issue some days ago, thankfully the bike was covered under warranty.
im honestly thinking of changing the battery to a better one.
Same shit keeps happening with my N250 for some reason, the starter relay just does the "tk tk" sound but bike doesnt start, Service centre said the factory battery was faulty, so bought a new Exide battery and everything was perfect for 1.5 months.
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We compare battery across these categories:
In March 2026 on PartReview, battery Exide were overall better than OEM Mercedes.
In March 2026 on PartReview, battery Exide were overall more popular than OEM Mercedes.
By vote balance, battery Exide surpassed OEM Mercedes:
By number of reviews, battery Exide surpassed OEM Mercedes:
In March 2026, according to PartReview, battery Exide and OEM Mercedes have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.
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For example, comparisons of battery Exide with: OPTIMA, Varta, Bosch, OEM Subaru, OEM Volkswagen, YUASA, Tesla, Duralast, OEM BMW, Deka.
Also available: comparisons of battery OEM Mercedes with: OPTIMA, Varta, Bosch, OEM Subaru, OEM Volkswagen, YUASA, Tesla, Duralast, OEM BMW, Deka.
You can also see who is better among other battery manufacturers: OPTIMA or Varta, OPTIMA or Bosch, OPTIMA or OEM Subaru, OPTIMA or OEM Volkswagen, OPTIMA or YUASA.