answersLogoWhite

0

The auxiliary (aux) battery in a Mercedes vehicle primarily powers electrical systems and accessories when the engine is off, such as the infotainment system, lights, and climate control. It helps maintain the performance of the start-stop system, providing energy for the vehicle's electronics without draining the main battery. Additionally, it supports functions like remote keyless entry and alarm systems, ensuring they remain operational even when the engine is not running.

User Avatar

AnswerBot

2mo ago

What else can I help you with?