Cheap Mercedes-Benz GLB Cylinder Head

The engine code is the single most important detail when sourcing a used cylinder head for the GLB — it matters far more than the year or badge on the car. You can find it on your V5C registration document or by running a VIN check. Give the engine code to your breaker before anything else, and they can match the head precisely rather than guessing from the registration alone.

The Mercedes-Benz GLB (X247) launched in 2019 and received a facelift in 2023, so both a 2020 and a 2022 car sit within the same pre-facelift generation. Provided the engine codes match and the fuel type is the same, there is a reasonable basis for compatibility, but ancillary fittings and minor casting changes can occur mid-production without a formal facelift. Always confirm the exact engine code with the breaker against your registration before purchasing.

The GLB (X247) facelift arrived for the 2023 model year, and crossing that production boundary with a mechanical part like a cylinder head is where fitment becomes uncertain. Even if the engine code looks the same on paper, detail changes to ancillary mounts or porting can occur at a generational update. Name the boundary to your breaker — pre-facelift versus post-2023 facelift — and ask them to check the engine code on the donor car directly against your registration.

AMG Line, Sport, and SE are specification packages that affect interior trim, alloys, and cosmetic features — they do not change the cylinder head you need. What determines the correct head is the engine code, so a GLB 200 petrol and a GLB 220d diesel will absolutely require different cylinder heads because they carry different engines, regardless of trim. Always match on engine code and fuel type, not on the trim name on the boot badge.

Mercedes-Benz does share engine families across the A-Class (W177), CLA (C118), and GLB (X247) model lines, and where the engine code is genuinely identical the internal architecture of the head can be the same. However, ancillary brackets, sensor positions, and mounting points can vary between vehicles even with matching codes, so you should confirm cross-model compatibility directly with the breaker against both registrations rather than assume the code alone is sufficient.

A cylinder head itself is a mechanical component and does not typically carry immobiliser or ECU pairing data in the way a complete engine or instrument cluster might. That said, if the head comes with sensors or ancillary parts attached, coding requirements will depend on exactly what is included. Confirm with your breaker and your fitting garage what, if anything, will need to be coded to your vehicle before you buy.