Krebs

This is maybe a bit of a dumb question but what is the correct size of the battery for a 2018 GLC? I went to pick up a new battery but the guy at the battery depot told me there were 3 different sizes and he didn't know which was the right one for my car. I'm in Canada if that makes any difference.

I'd rather not have to pull the battery first before replacing. I googled but I never actually found a clear answer.

Thanks

DanD.

Battery locate on the passenger side under the hood right below the dust filter. You don't have to pull it in order to see the type and spec.

Krebs

I looked at the battery but I see no specs to confirm what a suitable replacement would be. See the attached pic.

From the battery guy, he told me there were 3 options all with different dimensions which is what I am trying to figure out. Maybe he's out to lunch but I'm just trying to figure out which I should buy. My nearest MB dealer is 2 hours away so I am dealing with a local battery shop.

DanD.

I think you can measure yours without pulling it.
Read this if you didn't, I don't recall reading about multiple dimensions.

https://mbworld.org/forums/glc-class...tration-3.html

kjb55

I just replaced the battery in my 2018. It is an H7. Costco Interstate brand H7 AGM was $169 usd.

no_mulligan

H8 is a much closer match to the OEM battery. It fits as well. I've personally done it.

kjb55

The H7 was an exact match to the MB OEM battery I replaced. I looked into upsizing to the H8 - no way that was going to fit into the tray / space of my 2018 VIN WDC0G4KB8JV100752. Possibly the 20/21 models are different, the OP specified 2018.

BlueRidge

I just submitted the question "Battery for 2017 GLC 300 4Matic?” I should have read this first.
Most answers on Internet list battery sizes H5, H6, and H7 for GLC 300 2017, with most showing H5 and H6.
I will go with the H7 based on this thread.
Thanks for the responses.

omgitsjj

I just replaced mine at Costco. I went through the battery selection process on Costco's website, and it recommended an H6. However, the guy at the store compared the actual size and cranking power and got me an H7. Since they are the same price, I went with an H7.

no_mulligan

I was incorrect about H8. I installed an H7 NAPA Legend AGM battery 94R 800CCA. 80AH. Did the battery registration (reset charging counter) myself. Some say it's not necessary. Others say that it prevents overcharging new batteries and under charging older batteries. My original battery lasted 4 years. I say why not reset for another run toward 4 years.




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