My 2015 C200 needs a new battery and the dealer quote is honestly ridiculous, nearly 1800 dirhams just for a standard AGM replacement. A friend suggested I look at FIAMM as a more affordable alternative, but I’ve never seen anyone use that brand on a Mercedes before. I found https://batteryzoneuae.com/fiamm/ which has all the specs listed, and it seems like they make AGM batteries that should work with the stop start system, but I’m still nervous about going off brand. The price difference is huge though, almost half of what the dealer wants. Has anyone actually run a FIAMM battery in a modern Mercedes for more than a year? Did the car give any weird errors or did the start stop act up? I know these German cars can be really picky about voltage and battery type, so I don’t want to save money now only to end up with electrical gremlins later. Any real world experience would be super helpful before I decide.
