How to Replace an Auxiliary Battery - Mercedes E400 (and most other models)

Not something I am usually doing on this channel BUT something worth noting! When my Mum had this warning light come up on her E400 for the Auxiliary battery, I had no idea what she was talking about until I looked it up! In this episode, you'll see exactly where and what it is, and how to replace it. From what I looked up, almost all of them are the same or very similar. Make sure to give your vin number when ordering the battery though as there are two types of battery for this.