Auxiliary Battery Malfunction Unraveling the Mystery and Restoring Power

I am getting a code "218219 Starter unit, charging controller for auxiliary battery: Aged Auxiliary Battery". This is not surprising for a ... Take it to the dealer now. The Auxiliary battery controls many of the functions on the car. The main battery is for starting only. Mighty Max Battery YTX14-BS GEL Battery Replaces Mercedes Backup Auxiliary 2115410001 ... Casil 12v 1.2ah Rechargeable Sealed Lead Acid Replacement Battery for ... Car auxiliary batteries are very similar to the main car batteries, except that they are smaller and feature smaller capacity and smaller ... if you drive for a long enough time before the error appears, it may indicate a fault in your charging path. If it's able to recharge when you ... I am working on a 2020 A220. It has a Auxiliary Battery Malfunction message. I cannot find the location of the battery. I would simply replace it. The auxiliary batteries are very small and only last a few years, and your van is at the age that you're about due ... Have the Mercedes Auxiliary Battery Malfunction Fault? If so, you need to watch this video now! We will describe everything you need to fix ... In this video I am showing the way I am dealing with Auxiliary Battery Malfunction problem. This is unfortunately quite common issue across ... It happens after a new battery is installed and the previous battery was flat. So, drive the car around more with this new battery and the problem will go away.