How to Replace Auxiliary Battery on Mercedes Benz C200 C220 C250 C300 C400 | Installation Guide

[@elsageorge9358]

Is this guide same for B Class W247?

[@saiiptv5538]

hi Maybe someone can help me out. My mechanic changes this for me but fault keeps reappearing any idea why? as i cant find know where if its a common problem or not and I'm really confused as he told me they can be a short but on forums and youtube they say just change it and that's it should work k

[@millipeter3066]

Does it fit s class w222 too ?

[@tigerali7]

Anyone can help me locat 2017 e300 auxiliary battery location

[@jasminejordan8904]

How to order it ?

[@michaelcole1367]

Before replacing auxiliary battery, do I have to disconnect main battery?

[@bgumani2850]

I change the auxiliary capacitor battery in my W205 (2015) faulty still appears on dashboard

[@bgumani2850]

What else should I look for?

[@lard1892]

If you're going to do videos on Mercedes you need to know which battery you're talking about. That is not the auxiliary battery

[@Xenons4U]

Hello Lard, On the Mercedes-Benz catalog, part number a2059053414 is called an auxiliary battery because it doesn't have “mini” battery at the rear of the vehicle, like other models.

[@Johntom2k]

I have a 2010 c300. Is this where the auxiliary battery is? I changed the trunk and found nothing.