Second Hand Mercedes-Benz GLA Fuel Tank

The GLA X156 generation ran from 2014 to 2020, with a facelift introduced in 2017, so a 2015 and 2018 car sit either side of that facelift boundary. The engine code is the most important detail here — if both cars share the same engine code and fuel type, there is a reasonable chance the tank is compatible, but mounting points and ancillary connections can change across a facelift. Confirm the exact fit with the breaker against both registrations before buying.

No — diesel and petrol fuel tanks are not interchangeable, as they differ in filler neck design, capacity, and associated pump and sender unit connections. Always match the fuel type exactly, and give the breaker your engine code (found on your V5C or via a VIN check) to make sure they're pulling the right tank. Never assume a tank from the other fuel type will work safely or legally.

For the fuel tank, trim level does not affect fitment — SE, Sport, AMG Line, and other GLA trims all use the same tank for a given engine and model year. The trim differences on the GLA are cosmetic, covering things like alloy wheel design, body styling, and interior finish, none of which have any bearing on the fuel tank. Match by engine code, fuel type, and year range rather than by trim badge.

The engine code is the single most useful piece of information for this part — it identifies the exact specification of your car beyond what the badge alone tells you. You can find it on your V5C logbook or by running a VIN check, and you should supply it to the breaker when requesting a quote. Even two GLA 200d models from the same year can differ if they carry different engine codes, so don't rely on the badge alone.

The facelift in 2017 brought a range of updates to the X156 GLA, and while the core platform remained the same, ancillary fittings and mounting arrangements can vary across that boundary. If your engine code matches the donor car exactly and the fuel type is the same, there may be compatibility, but crossing the pre- and post-facelift divide is something you should confirm with the breaker against your specific registration rather than assume. A good breaker will cross-reference both VINs before committing to supply.

The 220d and 200d are both diesel variants of the X156 GLA, but they can carry different engine codes and may have differences in fuel system configuration. The engine code — not the badged power output — is what the breaker needs to establish whether the tank and its sender, straps, and connections will align correctly. Supply your engine code and registration to the breaker and let them confirm compatibility rather than assuming the shared fuel type makes them interchangeable.