In newer Mercedes Benz vehicles, the battery is typically located in a compartment beneath the seat or in the trunk of the vehicle. The exact location varies based on the year and model of Mercedes Benz in question. Most commonly the battery is behind a locked or latched panel.
Some Mercedes Benz vehicles with larger engines have two batteries, the larger of which is used to run the vehicle's electrical systems during normal operation and is located in the trunk or beneath a seat in the passenger cabin. A smaller, starter battery designed to engage the engine at ignition may be located in the engine compartment near the windshield.