2014 E63S Auxillary Battery replacement




Vehicle: 2014 E63S Wagon
Location of the battery: Trunk passenger side towards the back bumper under carpeted panel
Tools needed: Trim clip removal tool and I think 10 mm removal tool
Battery: Bought it at O'Reilly's ( one of the office employees husband had a commercial account--- $98 vs $225 at Mercedes dealership
Time- 20 minutes--If that
Satisfaction rating 10/10
Hope this helps
Remove the nut and the bracket will swing up and out of the way
***** Do not forget to re attach the vent tube *****
Last edited by Faast; Dec 21, 2024 at 04:10 PM.
I got mine from fcp euro given the frequency of failure on these batteries sometimes
Last edited by PeterUbers; Dec 21, 2024 at 10:07 PM.




