Used Mercedes-Benz A-Class Fuse Box

The A-Class has run across several distinct generations — the W168 (1997–2004), W169 (2004–2012), and W176 (2012–2018), followed by the W177 (2018–present) — and fuse boxes are not interchangeable across these generations as the electrical architecture changes significantly between them. Even within a generation there can be differences depending on engine variant and optional equipment fitted, so the year range alone isn't enough to confirm a match. Always confirm with the breaker against your exact registration so they can cross-reference the part numbers.

Both a 2015 and a 2017 A-Class fall within the W176 generation (2012–2018), which had a facelift in 2015, so you are potentially looking at a post-facelift-to-post-facelift match — a reasonable starting point. However, fuse boxes can vary based on the specific engine, transmission, and factory-fitted options on each individual car, so a shared generation doesn't guarantee the part is identical. Confirm with the breaker using both registrations so they can check the part numbers match before buying.

Unlike some parts where engine size is irrelevant, the fuse box on a Mercedes A-Class can vary between engine variants because different engines and transmissions require different fusing and relay configurations within the box. So while trim level itself (Sport, SE, AMG Line, and so on) doesn't directly affect fuse box fitment, the engine fitted to your car does matter here. Give the breaker your full registration so they can identify the exact specification and match the correct unit.

Trim level alone — whether your car is an SE, Sport, AMG Line, or AMG — does not determine which fuse box is fitted, as the fuse box is tied to the car's electrical and mechanical specification rather than its trim designation. That said, higher trims often come with additional factory options (parking sensors, upgraded audio, electric seats) that can influence the fuse box spec, so two cars with the same trim level could still differ. Confirm with the breaker against your registration to make sure the unit from the donor car matches your car's actual equipment level.

No — the W168 (1997–2004) and W169 (2004–2012) are completely different generations with different electrical systems, so their fuse boxes are not interchangeable. If you have a W168, you need a fuse box sourced from another W168, and the same applies to the W169. Make sure you give the breaker your exact registration so they can confirm the correct part for your specific car.

The Mercedes A-Class typically has more than one fuse box — commonly one in the engine bay and one in the passenger compartment, sometimes referred to as the SAM (Signal Acquisition Module) unit, which combines fuse and relay functions. These are distinct parts and not interchangeable with each other, so you need to be clear with the breaker about which fuse box or SAM unit you require. Confirm the exact location and function of the failed unit before requesting a quote to make sure you get the right part.