2018 Mercedes-Benz Metris Fuse Box Diagram & Amperage

Quick answer

The 2018 Mercedes-Benz Metris has multiple fuse box locations to protect its various electrical systems. You'll find fuse boxes under the hood, behind a kick panel on the driver's side of the dashboard, and in the cargo area on the driver's side.

Under-Hood Fuse Box (Engine Compartment)

This fuse box typically houses fuses for critical engine components, major electrical systems, and high-amperage circuits. It's usually located near the battery on the driver's side.

Note: Fuse numbering and amperage ratings can vary slightly depending on your Metris's specific trim level and optional equipment. Always refer to the fuse diagram printed on the inside of your fuse box lid for the most accurate information.

Dashboard Fuse Box (Driver's Side Kick Panel)

This fuse box, often referred to as the "cabin" or "interior" fuse box, manages electrical components within the vehicle's cabin, such as the radio, power windows, and accessory outlets. It's typically found behind a removable panel on the driver's side dashboard, near the footwell.

Note: Fuse configurations may vary. Always consult your vehicle's owner's manual and the fuse diagram for precise details for your Metris.

Cargo Area Fuse Box (Driver's Side)

For models equipped with specific rear accessories or trailer packages, an additional fuse box can be found in the cargo area, typically on the driver's side behind a trim panel. This location often handles circuits related to rear power outlets, trailer wiring, and convenience features.

Note: The presence and contents of this fuse box are highly dependent on your Metris's options and may not be present on all models. Always check your vehicle for specific configurations.

How to test a fuse

Testing a fuse is a straightforward process that can pinpoint electrical issues quickly. Here's how:

1. Locate the fuse box: Refer to your owner's manual or the diagrams above to find the correct fuse box.
2. Identify the suspect fuse: Look at the fuse chart on the fuse box lid or in your owner's manual to find the fuse for the circuit that's not working.
3. Inspect visually: Many fuses have a clear plastic body. A blown fuse will typically have a visible break in the metal wire inside.
4. Use a fuse tester or multimeter: For a more accurate test, remove the fuse and use a fuse tester or set a multimeter to the continuity setting. Touch the probes to both metal prongs of the fuse. If there's continuity, the fuse is good. If there's no continuity (or the tester light doesn't illuminate), the fuse is blown and needs replacement.
5. Replace with the correct amperage: Always replace a blown fuse with a new fuse of the exact same amperage rating and physical size. Using a fuse with a higher amperage can lead to serious electrical damage or fire.

Common blown fuses on this vehicle

While specific failures can vary, some fuses tend to blow more often due to high usage or common accessory issues. If you experience one of these problems, check the corresponding fuse first:

• Cigar Lighter / 12V Outlets: Often blow due to incompatible accessories, overloaded chargers, or foreign objects shorting the outlet. Check the yellow 20A fuse (F5) in the dashboard fuse box.
• Blower Motor: If your climate control fan isn't working, the blower motor fuse might be blown, especially if it was struggling or making unusual noises recently. Check the green 40A fuse (F5) in the under-hood fuse box.
• Headlights: A single headlight out could be a bulb, but if both are out or multiple lighting functions are affected, check the relevant headlight fuses (e.g., F15, F16, F17, F18 in the under-hood fuse box).
• Radio/Infotainment: If your radio suddenly goes dark or loses power, check the blue 15A fuse (F1) in the dashboard fuse box.

Before replacing any fuse, try to identify the cause of the blown fuse. A fuse blows to protect the circuit from an overload or short circuit. If a fuse repeatedly blows, there's an underlying electrical issue that needs professional diagnosis.

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