GL63 main and aux battery replacement Tips?




OEM is about $600 (including labor). Bulk of that is battery cost which I'm not sure exactly what MSRP is as I'm seeing prices all over the board online.
I've found that autozone carries this battery that is supposedly a direct OEM fit. Anyone try this?
Main:
https://www.autozone.com/ignition-tu...9_537165_25698
Aux:
https://www.autozone.com/ignition-tu...4_276961_25698
I've read you have to cut the carpet, but I looked at mine and the carpet was already trimmed so not sure if it was replaced before or if the GL63 came like that. Maybe it was trimmed for service. Some have AUX and Main together, but the GL63 has the AUX in the trunk area.
Anyone has any good youtube videos or link to forum posts (I haven't found anything that hit on everything), let me know.
There looks to be nearly zero room to remove the battery (clearly it's possible) so doesn't look like a 5 minute job as on my other cars.
I welcome any feedback, tips or tricks!




I just had both of my batteries replaced by the dealer. The total with tax was $730. According to the invoice, the auxiliary battery is located under the spare tire.






