Mercedes E350 W212 auxiliary battery location and malfunction DIY fix! Step by step replacement!

In this video Mike Icee will replace the auxiliary battery malfunction on a Mercedes W212 E350 e-class. The battery goes for $60 at the dealer. The auxiliary battery location is in the dash on the drivers side. You&see all the steps (step by step) and DIY tools needed. This aux battery was used in most 2010, 2011, and 2012 E350 cars. Always check with a Mercedes Dealer for proper parts and repair methods. The auxiliary battery replacements costs $250-400 at the dealership.