Auxiliary Battery Malfunction Your Ultimate Guide to Diagnosis and Repair Strategies

No photo description available. Car Care Workshop. . Auxiliary battery malfunction means what Abeg ? 3:22 PM · Sep 4, 2024. ·. 101. Views. In this article, we'll go through how to replace the auxiliary battery in a late model ML class (rebadged GLE from 2015). Symptoms of Battery Failure · Presence of Water in One or More Cells · Excessive Corrosion · Long Crank Time. This guide will explain everything you need to know about the auxiliary and show you how to replace it yourself for under $100. There's only a single aux batt. Could be bad -- so long as the truck isn't driving, you could disconnect the aux batt overnight to see if the issue persists. Take it to the dealer now. The Auxiliary battery controls many of the functions on the car. The main battery is for starting only. From a weak primary battery to a defective battery management system; there are all sorts of reasons why your Mercedes' auxiliary battery may fail. It is highly recommended to disconnect the battery terminal when doing anything in the car, Open the carpet and it is easily seen, remove the plastic cover and ... My 2016 GLC has just started with the auxiliary battery malfunction error message. I intend to check the fuse 448 first.