Mercedes C300 Auxiliary Battery Replacement (W205) | Fix Stop Vehicle Leave Engine Running Warning

Mercedes C300 Auxiliary Battery Replacement (W205) | Fix Stop Vehicle Leave Engine Running Warning Product Links: Mercedes Voltage Converter Module (Auxiliary Battery): https://amzn.to/4fo53FP Socket Set (Metric): https://amzn.to/3GX7u5C If you see a dashboard warning saying "Stop Vehicle, Leave Engine Running" in your W205 Mercedes, it means it's about time to replace your main battery. However, even though I installed a new battery, my 2015 C300 was having other issues. Which led me to look at the Voltage Converter Module... often incorrectly referred to as the Auxiliary Battery. The Voltage Converter provides power to things like the automatic engine start/stop function, parking selector and other electrical accessories and systems. Only basic tools are needed including a 10mm socket, 8mm socket and a T20 Torx bit. As a side note, Torx screw and nut sizes might be different on your vehicle depending on your country or region. All of the issues went away after the Voltage Converter Module was replaced. And don't worry if you have no experience working on cars, I believe that this is something anyone can do. I estimate this job would take about 20 minutes to do. After following the steps shown in this video, any Auxiliary Battery warning messages and other issues related to Voltage Converter Module should go away. If this video was helpful please give me a thumbs up and hit the subscribe button to stay up to date on all my weekly videos. Chapters: 00:00 - Mercedes Aux Battery Intro 01:15 - Removing Panels and Trim 04:10 - Unmounting Auxiliary Battery/Voltage Converter 04:58 - Installing New Aux Battery 05:18 - Reinstalling Panels and Trim 06:27 - The Most Difficult Part of the Process 08:07 - Inspecting Fuse #448 in Trunk The instructions in this video applies to these vehicles: Mercedes-Benz C300 2015 Mercedes-Benz C300 4Matic 2.0L L4 2015 Mercedes-Benz C300 Base 2.0L L4 2016 Mercedes-Benz C300 Base 2.0L L4 2016 Mercedes-Benz C300 4Matic 2.0L L4 2017 Mercedes-Benz C300 4Matic 2.0L L4 2017 Mercedes-Benz C300 Base 2.0L L4 2018 Mercedes-Benz C300 Base 2.0L L4 2018 Mercedes-Benz C300 4Matic 2.0L L4 Mercedes-Benz C400 2015 Mercedes-Benz C400 4Matic 3.0L V6 Mercedes-Benz E300 2017 Mercedes-Benz E300 4Matic 2.0L L4 2017 Mercedes-Benz E300 Base 2.0L L4 2018 Mercedes-Benz E300 Base 2.0L L4 2018 Mercedes-Benz E300 4Matic 2.0L L4 Mercedes-Benz GLC300 2016 Mercedes-Benz GLC300 4Matic 2.0L L4 2016 Mercedes-Benz GLC300 Base 2.0L L4 2017 Mercedes-Benz GLC300 4Matic 2.0L L4 2017 Mercedes-Benz GLC300 Base 2.0L L4 2018 Mercedes-Benz GLC300 Base 2.0L L4 2018 Mercedes-Benz GLC300 4Matic 2.0L L4 Mercedes-Benz C63 AMG 2016 Mercedes-Benz C63 AMG Base 4.0L V8 2017 Mercedes-Benz C63 AMG Base 4.0L V8 2018 Mercedes-Benz C63 AMG Base 4.0L V8 Mercedes-Benz C63 AMG S 2015 Mercedes-Benz C63 AMG S Base 4.0L V8 2016 Mercedes-Benz C63 AMG S Base 4.0L V8 2017 Mercedes-Benz C63 AMG S Base 4.0L V8 2018 Mercedes-Benz C63 AMG S Base 4.0L V8 Mercedes-Benz S63 AMG 2015 Mercedes-Benz S63 AMG Base 5.5L V8 2016 Mercedes-Benz S63 AMG Base 5.5L V8 2017 Mercedes-Benz S63 AMG Base 5.5L V8 2018 Mercedes-Benz S63 AMG 4Matic 4.0L V8 Mercedes-Benz S65 AMG 2015 Mercedes-Benz S65 AMG Base 6.0L V12 2016 Mercedes-Benz S65 AMG Base 6.0L V12 2017 Mercedes-Benz S65 AMG Base 6.0L V12 2018 Mercedes-Benz S65 AMG Base 6.0L V12 Mercedes-Benz C450 AMG 2016 Mercedes-Benz C450 AMG 4Matic 3.0L V6 Mercedes-Benz GLC43 AMG 2017 Mercedes-Benz GLC43 AMG 4Matic 3.0L V6 2018 Mercedes-Benz GLC43 AMG 4Matic 3.0L V6 Mercedes-Benz C43 AMG 2017 Mercedes-Benz C43 AMG Base 3.0L V6 2018 Mercedes-Benz C43 AMG Base 3.0L V6 Mercedes-Benz E43 AMG 2017 Mercedes-Benz E43 AMG 4Matic 3.0L V6 2018 Mercedes-Benz E43 AMG 4Matic 3.0L V6 Mercedes-Benz S550 2017 Mercedes-Benz S550 4Matic 4.6L V8 2017 Mercedes-Benz S550 Base 4.6L V8 Disclaimer: As an Amazon Associate I earn from qualifying purchases. ****Equipment I Use For My Videos**** Canon EOS M6: https://amzn.to/2pwQ0Vq Canon EF-M 22mm f/2 Lens: https://amzn.to/31mLfLq Tokina 11-16mm Wide Angle Lens: https://amzn.to/33TFaYH Fotodiox EF to EOS M Lens Adapter: https://amzn.to/31u3AGq Comica CVM-WM300A Wireless Microphones: https://amzn.to/31tbiAD Aputure Amaran AL528W LED Light: https://amzn.to/2VRuwyK Kamerar SD-1 Camera Slider: https://amzn.to/2VUB5Ax AVermedia HDMI Game Capture Module: https://amzn.to/31phsSp