Aux battery went yesterday in my 2018.
Thread Starter
MBWorld Fanatic!
Joined: Jul 2013
Posts: 4,830
Likes: 772
From: Venice Florida
2018 S560
Aux battery went yesterday in my 2018.
100 bucks at batteries plus. Gonna do it myself. These 275 an hour dealer rates around here are just crazy. Anyone who’s done it just pretty much disconnect the terminals and reconnect the new one and should be all set? Looks like it’s burried pretty well in the rear passenger quarter panel. Think I’ll be able to access it ok though. Watched a YouTube video on it last night. Right now have the aux malfunction message and no cruise control or brake hold or stop/start.
MBWorld Fanatic!
Joined: Aug 2017
Posts: 1,694
Likes: 521
2019 S560, 2015 Honda Civic Hybrid
Yes, not too hard. There's a vid or two on Youtube that shows each of the steps. Only twist I encountered: the battery sits on a slide out tray, that wasn't immediately apparent to me at first. Good luck and buy your wife or girlfriend flowers and a nice dinner with the money you save!
MBWorld Fanatic!
Joined: Dec 2006
Posts: 6,497
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From: Europe
223.168 & 213.012 & 906.633 & 214.005
Not exactly disconnect/reconnect but not difficult either. The rear SAM needs to be loosened to make room for the tray to come out as mentioned above. Videos will show which screws to remove etc.
Thread Starter
MBWorld Fanatic!
Joined: Jul 2013
Posts: 4,830
Likes: 772
From: Venice Florida
2018 S560
Thanks folks. I’m at a Indy garage now getting it done. I had the panels out but had an issue trying to get the battery out. Hopefully it’ll be ok. MB does not make it easy for what should be a simple maintenance item. Gonna get a quote at this garage getting the trans oil changed soon as that’s coming up. Will need brakes in the not too distant future too so good I found this Indy mercedes bmw place.
Super Member
Joined: Jan 2009
Posts: 566
Likes: 261
From: In The Woods
2019 W222 S560 4Matic/2025 Yukon Denali
Super simple.
right side of the trunk.
peel back carpeting, move the fuse box to the left and replace.
esay.
I did mine in the parking lot of my office.
right side of the trunk.
peel back carpeting, move the fuse box to the left and replace.
esay.
I did mine in the parking lot of my office.
