Mastering Auxiliary Battery Malfunction Resolution A Detailed Walkthrough

"[P] LOCK MALFUNCTION WHEN PARKING, PARK IN FLAT PLACE AND APPLY PARKING BRAKE SECURELY" this was followed by an "AUX BATTERY LOW" warning. From a weak primary battery to a defective battery management system; there are all sorts of reasons why your Mercedes' auxiliary battery may fail. This guide will explain everything you need to know about the auxiliary and show you how to replace it yourself for under $100. AUXILIARY BATTERY MALFUNCTION ... Many Mercedes have the main battery and a backup battery known as the auxiliary battery. If it is the auxiliary battery that ... Loss of non-essential features: The auxiliary battery typically powers non-essential features such as the radio, interior lights, and power windows. If the ... 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 ... The 2 batteries r isolated from each other when the car is completely shut off, so if u cant start ur car, it has something to do with the main ... Root cause?! According to the electrician, he found a groung cable near the área where the battery is, that had high reistence and could be ... I am working on a 2020 A220. It has a Auxiliary Battery Malfunction message. I cannot find the location of the battery. When it starts showing signs of battery failure, it is best to replace both of them. The most common sign is the Aux Switches or ESS Unavailable ...