Mercedes-Benz X-Class Brake Light Switch Replacement Parts

Yes, every X-Class has a brake light switch — it is a standard component on all variants of this model regardless of engine or drivetrain. The X-Class was sold in the UK from 2017 to 2020 as a single generation with no facelift, so there is only one generation to consider when sourcing this part. All engines (2.3-litre diesel in various power outputs and the 3.0-litre V6 diesel) used a brake light switch, as it is a universal requirement for any road-going vehicle.

The X-Class ran as a single unchanged generation from 2017 to 2020 with no mid-life facelift, so a switch from a 2017 car is generally from the same design family as one from a 2019 car. That said, you should confirm the part number against your registration with the breaker before buying, as minor running changes to supplier components can occur within a production run without a visible facelift. Never assume fitment purely on year alone.

For a brake light switch, engine size does not affect fitment — this part operates the brake lights and is not related to braking force or brake system sizing. A switch from a 220d, 250d, or 350d X-Class should be the same unit, but confirm the part number with the breaker against your registration to be certain, as supplier revisions can occur. This is one case where engine variant is very unlikely to matter.

No, trim level does not affect brake light switch fitment on the X-Class — Progressive, Stylish, and Power trims all share the same fundamental brake pedal and switch arrangement. Trim differences on the X-Class relate to cosmetic and comfort features, not running gear or pedal box components. Buy based on year and confirm with the breaker against your registration rather than worrying about trim.

No — the brake light switch is mounted on the brake pedal assembly and is not affected by whether the vehicle is 4MATIC four-wheel drive or rear-wheel drive. Both drivetrain configurations use the same pedal box design on the X-Class, so this distinction should not change the part you need. Confirm with the breaker against your registration to be sure, but drivetrain is not expected to be a factor here.

The X-Class is relatively rare in UK breakers' yards compared to mainstream models, as it had a short production run ending in 2020 and modest UK sales volumes. Findapart lets you request quotes from multiple UK dismantlers at once, which is the most practical way to track down low-volume parts like this. When contacting a breaker, give them your registration number so they can confirm the correct part against your specific vehicle.