Check the rear trunk-mounted power distribution panel first and match each slot with its labeled circuit before replacing any protective element. Use only the specified amperage rating printed on each insert to avoid damaging sensitive electronic modules.
This luxury sedan uses multiple distribution points, including a trunk-mounted unit, a dashboard side panel, and an engine compartment block. Comfort systems, lighting controls, and infotainment modules are typically routed through the rear section, while high-current systems like cooling fans and ignition circuits are managed under the hood.
Each position is marked with precise codes linked to systems such as seat control modules, climate control, and onboard electronics. When a function fails, locate the corresponding label and inspect the internal metal strip for breaks or heat damage.
Keep spare blade-style inserts in common ratings such as 5A, 10A, 15A, and 20A. Repeated failure points to wiring faults or defective components, so inspect connected circuits instead of replacing parts repeatedly.
2005 Mercedes Benz E320 Fuse Box Diagram and Circuit Layout
Locate the trunk-mounted power distribution panel first and verify each circuit position using the printed legend before removing any protective insert.
This vehicle uses three main distribution points: rear compartment, dashboard side panel, and engine bay unit. The rear section handles interior electronics such as seat modules, audio system, and climate control, while the dashboard panel supports lighting and control switches. The engine compartment unit contains high-current circuits and relays for systems like fuel delivery, cooling fans, and ignition. Each slot is labeled with system-specific codes, and amperage values typically range from 5A to 40A depending on load. Inspect the internal metal strip of each insert for breaks or discoloration, and ensure all components are fully seated to maintain stable electrical flow.
Trunk Fuse Box Layout with Circuit Labels and Amp Ratings
Open the trunk-side panel and match each slot with the printed label before removing any protective insert.
The rear distribution unit contains circuits for comfort and electronic systems, including seat adjustment modules, central locking, interior lighting, and audio components. Each position is marked with specific identifiers tied to these functions, allowing quick identification of the affected system when a failure occurs.
Amperage values vary based on load requirements, typically ranging from 5A for control modules to 30A or higher for seat motors and power accessories. Always replace inserts with the exact same rating to prevent overheating or damage to sensitive electronics.
Inspect each contact point for corrosion and ensure all inserts are fully seated. Loose connections in this area can cause intermittent issues with multiple interior features, especially those relying on shared power circuits.