Cheap Mercedes-Benz GLA Brake Light Switch

The Mercedes-Benz GLA first generation (X156) ran from 2014 to 2019, so a 2015 and a 2018 are both within the same generation and the brake light switch is likely to be compatible. That said, confirm the exact part number with the breaker against your registration before buying, as minor running changes can occur within a generation. Never assume fitment without that check.

The X156 GLA received a facelift in 2017, and while the brake light switch is a mechanical component unlikely to change with cosmetic updates, we cannot state with certainty that the pre- and post-facelift switches are identical. Give the breaker your full registration so they can check the part number matches before you commit to buying.

For the brake light switch specifically, engine size is very unlikely to affect fitment — this is a simple pedal-box switch that tells the ECU and brake lights when the pedal is pressed, and it is generally common across the GLA engine range. Confirm with the breaker against your registration to be sure, but this is one area where engine variant typically does not create a difference.

Trim level — whether SE, Sport, AMG Line, or any other — does not affect brake light switch fitment on the GLA; this is a mechanical pedal switch and trim is a cosmetic distinction. A switch pulled from an AMG Line car will work the same as one from an SE, so do not let trim differences put you off a good used part. Confirm the generation and year match with the breaker and you should be fine.

The brake light switch operates off the brake pedal mechanism rather than the engine or drivetrain, so diesel and petrol variants of the X156 GLA are very likely to share the same switch. Confirm with the breaker by providing your registration, but fuel type is not expected to be a fitment variable for this part.

The brake light switch sits on the brake pedal assembly and is not part of the drivetrain, so 4MATIC four-wheel-drive and standard front-wheel-drive GLAs are expected to use the same switch. Drivetrain layout is a fitment consideration for running-gear parts like driveshafts, not for pedal-box components like this. Check with the breaker using your registration to confirm, but 4MATIC status should not be a barrier here.