Second Hand Mercedes-Benz GLA ABS Pump

Yes, every GLA variant sold in the UK comes with ABS as standard, so all of them have an ABS pump (also called an ABS modulator or hydraulic control unit). It sits within the brake hydraulic circuit and works alongside the ESP and traction control systems. Whether you have a petrol, diesel, or 4MATIC four-wheel-drive GLA, the pump is present on all of them.

These are two completely different generations built on different platforms — the X156 ran from 2013 to 2019 and the H247 from 2020 onwards — so the ABS pumps are not the same unit and should not be assumed interchangeable. The hydraulic and electronic architecture changed significantly between generations, meaning a direct swap is very unlikely to work. Confirm the exact part number with the breaker against your registration before ordering.

Engine size and drivetrain layout can influence brake system specification, and the 4MATIC all-wheel-drive models in particular may carry a different ABS/ESP module to the two-wheel-drive variants because of the additional input channels needed for the rear axle. Within the two-wheel-drive range, differences between engine sizes are possible but not always present. Always give the breaker your full registration so they can match the correct unit rather than going on model name alone.

The X156 GLA received a facelift around 2017 which brought styling and interior updates, but running gear changes at mid-generation facelifts can sometimes include brake system revisions. The generation boundary (X156 2013–2019) is well established, but whether the pre- and post-facelift cars share an identical ABS pump is something you should confirm with the breaker against your specific registration and their donor vehicle's registration, rather than assume.

Trim level alone — SE, Sport, AMG Line, or AMG Line Premium — does not drive ABS pump fitment; what matters is the generation (X156 or H247), the drivetrain (2WD or 4MATIC), and potentially the engine variant. Cosmetic and interior differences between trims are irrelevant to the hydraulic brake components. That said, if any performance-oriented variant carried a different brake or suspension specification, confirm this with the breaker against your registration to be sure.

Give the breaker your full UK registration number so they can verify the exact generation, drivetrain type, and any market-specific brake specification fitted to your car. The ABS pump often carries a Bosch or Continental part number on a label, so noting that from your existing unit is also very helpful. A reputable breaker will cross-reference the donor vehicle's registration against yours before confirming a match — never assume fitment on model name and year alone.