2022 Mercedes-Benz Metris Fuse Box Diagram & Amperage

Quick Answer

The 2022 Mercedes-Benz Metris typically features fuse boxes in three primary locations: under the hood, behind the driver's side kick panel, and in the cargo area/under the front passenger seat.

Under-Hood Fuse Box

This fuse box, often located near the battery or on the driver's side, houses fuses for critical engine components, primary electrical systems, and high-amperage circuits.

Relay Locations (Under-Hood): You'll typically find relays for the fuel pump, horn, starter, and possibly main power relays within or adjacent to this under-hood fuse box. Always refer to your vehicle's specific fuse box diagram for exact relay identification and location.

Driver's Side Kick Panel Fuse Box

This fuse box, usually behind a removable panel on the driver's side dashboard or kick panel area, manages circuits for interior accessories, lighting, and convenience features.

Relay Locations (Dash): Relays for power windows, intermittent wipers, and general accessory power may be located here. Consult your Metris owner's manual or the fuse box lid diagram for precise relay mappings.

Cargo Area / Front Passenger Seat Fuse Box

Some Metris models include an additional fuse box in the cargo area or possibly under the front passenger seat, often responsible for rear accessories, trailer wiring, or specific vehicle options.

Relay Locations (Cargo/Passenger): Depending on your Metris's configuration, you might find relays for specific rear power outlets, trailer functions, or auxiliary systems in this location.

Note on Trim Variations: Fuse assignments can vary slightly between different trim levels and optional equipment packages for the 2022 Mercedes-Benz Metris. Always refer to the fuse diagram printed on the inside of your specific vehicle's fuse box cover or your owner's manual for the most accurate information.

How to Test a Fuse

Testing a fuse is a straightforward process:

1. Safety First: Ensure the vehicle's ignition is off and disconnect the battery if you're working on high-amperage circuits.
2. Locate the Blown Fuse: Visually inspect the fuse. A blown fuse will have a broken wire or a dark, burnt appearance inside. For opaque fuses, you'll need to use a multimeter.
3. Use a Multimeter: Set your multimeter to the continuity setting (often indicated by an audible beep symbol). Touch the probes to the two metal terminals on top of the fuse. If the multimeter beeps or shows a reading close to zero ohms, the fuse is good. If there's no beep or an "OL" (open circuit) reading, the fuse is blown.
4. Pull the Fuse: Use a fuse puller (usually found in the fuse box lid or with your vehicle's tools) to safely remove the suspect fuse.
5. Replace (if blown): Always replace a blown fuse with a new fuse of the exact same amperage rating and type. Using a fuse with a higher amperage can lead to serious electrical damage or fire.

Common Blown Fuses on This Vehicle

While any fuse can blow, some are more common than others on vehicles like the Mercedes-Benz Metris due to their frequent use or connected accessories:

• Cigar Lighter/12V Outlets: These fuses often blow due to excessive use with high-power accessories, faulty chargers, or foreign objects inserted into the outlet. If yours isn't working, check the corresponding fuse in the dash kick panel fuse box (F3, 15A).
• Radio/Infotainment System: Issues with the radio not turning on or malfunctioning can often be traced back to a blown fuse. Check F1 (15A) in the dash kick panel fuse box.
• Blower Motor: If your HVAC fan isn't working on any speed, a common culprit is the blower motor fuse. For the Metris, this is typically F12 (30A) in the under-hood fuse box.
• Headlights/Tail Lights: If only one headlight or tail light isn't working (and the bulb is confirmed good), it could be a specific fuse. Check the individual fuses in the under-hood fuse box (F5-F11) for the respective light.
• Trailer Brake/Auxiliary Power: If you're experiencing issues with trailer lights or power, especially after connecting a trailer, check the related fuses in the under-hood (F16, 15A) or cargo/passenger seat (F2, 20A) fuse boxes.

What to check first: Before checking fuses for issues like non-working accessories or lights, always ensure the component itself is properly connected and functioning. For example, check the bulb before checking the headlight fuse, or try a different device in the 12V outlet before checking its fuse.

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