Where is the Auxiliary battery located?

2011 MERCEDES BENZ S550
114,000 MILES • V8 • 4WD • AUTOMATIC
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BHAMDOC1973
  • MEMBER
  • 2,007 POSTS
Got a message on dash. Where is it located?
Oct 3, 2022 at 9:16 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
It is hidden up behind the dash on the A pillar to the left of the steering column. To access it you remove the trim panel on the end of the dash and under the dash in the drivers footwell. Then you can get to the battery retaining screw that is behind the dash end cover and lower it out the bottom. Reverse the procedure to replace it.
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Oct 3, 2022 at 3:40 PM
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