Chastity

My 3rd party mechanic suggested getting the manufacturer battery direct from Mercedes, since it's going on 8-9 years.

What's the general consensus here on car batteries.

25th Car

Here is a post where it speaks about batteries and the car. Hopefully you can get some information here.

https://mbworld.org/forums/c-class-w...ed-advice.html

MB Marko

I went with OEM it was reasonably priced and lasted 6.5years

Tom in Austin

That's remarkable life for an OEM battery. Here in Texas, my car batteries last about 3-4 years. Interestingly, my C350 is turning five in January (from first owner in-service date) and its battery is doing fine, so it may beat the odds ?

superangrypenguin

I got roughly 6 years out of my OEM batteries, and while Texas is a bit hotter than Toronto in the summer, it's really not that far off. I remember highs this last summer at roughly 36C, and I've been to Las Colinas for work and Dallas, and I've seen 41/42'C, so we're not talking that big of a difference.

MB Marko

These cars are crazy you can be hitting 12V and you'll have some issue with the car. When you put the new battery and hit 12.4v everything's fine. Plus the price of OEM is better than aftermarket stuff.

W204Motorsports

Original battery is great, mine lasted 8 years. However, my local dealer wanted over 400$ for one. I got an Interstate for 180$ instead with 4 year warranty, no issues yet after 2 years.

xsever

My new-to-me 2012 C300 still has its original battery and it's working perfectly fine. I wonder how long it will last given that the car only has 6,000 miles on it.

superangrypenguin

It's really a function of the environment. If the car was in a hot environment, and/or is in one now (I believe it is if I recall your posts correctly), battery life will take a hit. Temperatures kill batteries.

On REALLY hot summer days, I'd put my C300 in the garage, and open the hood up wide to get rid of that heat in the engine bay. I'd also leave my garage door open to rid the heat.

timlippold

Mine lasted about 10 years and 100k miles in MA

Demvang

My Duralast Gold battery is approaching 30k miles in just over 3yrs.

Baekhyunn

My W204 2012 C250 Sport has its original battery still with mileage is at 111k. Seems to me that its still running fine

1sturbo

My 2012 C250 needed a jump the other day. With the hot weather and short driving around town, I am checking the price on replacement battery. The dealer is asking for around $300, And Costco is selling Interstate battery for $199. I might try Interstate if my car die again.

Odd Piggy

OE battery is an AGM, but not absolutely required. Get a similar cold cranking amp (CCA) rating and reserve capacity. Interstate is a well known and reliable brand. You’ll get different opinions on this, but I recommend asking the shop to use a memory saver so you don’t have to reset everything.