
2023 - 2026 Mercedes-Benz C-Class Sedan Fuse Relay Boxes Location
2023 - 2026 Mercedes-Benz C-Class Sedan, has 4 fuse and relay boxes, 1 fuse relay box in the engine compartment, 2 fuse relay box in the passenger compartment and 1 fuse relay box in the luggage compartment.
Engine Compartment Fuse Relay Box Location:

The location of the fuse relay box in the engine compartment is on the driver's side of the engine.
Passenger Compartment Fuse Relay Box Location:

The fuse box in the passenger compartment is located on the driver's side, between the door and the instrument panel, behind the cover.

The second fuse and relay box in the passenger compartment is located on the passenger side, in the passenger footwell, on the right side.
Luggage Compartment Fuse Relay Box Location:

The fuse and relay box in the luggage compartment is located on the right side of the trunk, behind the cover.
WARNING AND NOTES REGARDING FUSE REPLACEMENT IN THE VEHICLE:
- The vehicle is secured against rolling away.
- All electrical consumers are switched off.
- The vehicle is switched off.
- Always replace faulty fuses with specified new fuses containing the correct amperage.
- Use only fuses appeoved for Mercedes-Benz with the respective fuse rating.
- When is the fuse box open, make shure that no moisture can enter the fuse box.
- When closing the fuse box, make shure that the seal of the lid is positioned correctly on the fuse box.
Additional Notes:
Numbering and fuse examples: The fuses in the W206 generation are divided into several numerical series depending on location, which makes identification easier. Here are a few typical examples:
In the engine compartment (100 series):
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102, 104, 105: 20A, engine electronics.
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108: 30A, windshield wipers.
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111, 114: 30A, front body control module.
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119: 15A, engine electronics (this fuse is often mentioned in discussions about W206 faults).
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123, 141: 10A, brake booster (i-Booster).
In the cockpit (200 series):
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200: 5A, instrument cluster.
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201: 15A, rear cross-traffic radar / adaptive cruise control.
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203, 207: 5A, climate control.
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206: 15A, seat adjustment / lumbar support functions.
Important note: The manufacturer's manual clearly states that the fuse ratings and detailed information are given on the fuse allocation diagram. That diagram is usually located on the lid of the fuse box in the trunk. Before checking or replacing a fuse, you should always consult the official diagram on the fuse box cover in your vehicle, because the layout may vary depending on equipment and the specific model year. Mercedes-Benz also recommends that work on the fuse box be carried out by an authorized workshop.

