The auxiliary battery on Your 2013 Mercedes SL550 is actually going to be located on the inside of the vehicle. You're going to need to remove the kick panel that is on the passenger's side of the vehicle in the foot area. It will require peeling back the carpet and then removing a few bolts before then takeng a pry tool to it so You can peel it back. Once You get this cover off You're going to see the battery. A new battery can cost between $80 and $175 depending on where You go to shop at.
Rita J
July 16, 2020
The auxiliary battery can be found at the top of the front passenger footwell in the 2013 mercedes sl550.
The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. VehicleHistory.com
does not research or authenticate any of the Answers provided.