Second Hand Mazda CX-3 Fuel Tank

The Mazda CX-3 ran as a single generation from 2015 to 2023 in the UK, with a facelift arriving around 2018, so a 2016 and a 2018 car sit either side of that boundary. Tanks from within the pre-facelift period (2015–2017) and from within the post-facelift period (2018 onwards) may well be the same unit, but whether the part crosses that 2018 boundary without issue is something you should confirm with the breaker against your registration, as mounting and ancillary details can change at a facelift. Supplying your engine code from your V5 or a VIN check will give the breaker the most reliable basis for confirming compatibility.

Yes — the CX-3 was sold in the UK with both petrol and diesel engines, and fuel tanks are built to suit the specific fuel type, so you must match petrol to petrol and diesel to diesel. Beyond that, your engine code (found on your V5 or via a VIN check) is the single most useful detail you can give a breaker, as it confirms exactly which drivetrain the donor tank came from. Never assume a tank from the other fuel type will be a straightforward swap.

No — trim level does not affect fuel tank fitment on the CX-3. Whether your car is an SE, SE-L, Sport, Sport Nav, or GT Sport, the tank fitted is determined by engine code, fuel type, and model year, not by the trim badge. Do be aware that if a donor vehicle comes from a different trim it may have different underbody protective panels or covers, but the tank itself follows the mechanical specification.

Gearbox type can influence tank shape or mounting in some vehicles because the transmission tunnel packaging differs, so it is worth noting whether your CX-3 has the six-speed manual or the automatic when requesting quotes. Supply your full engine code and registration to the breaker so they can check the donor vehicle's specification matches yours. This is not a fitment detail you should assume is identical across gearbox types without the breaker confirming it.

The CX-3 is a single-generation model running from 2015 to 2023, but the 2018 facelift is a known production boundary and parts can change at that point, meaning a 2020 tank crosses that boundary relative to your 2015 car. The engine code on your V5 is the most important matching factor, and you should ask the breaker to check both the donor registration and yours to confirm the tank and its ancillaries are compatible across that production change. Never assume fitment without that specific confirmation.

The CX-3 was offered in both front-wheel-drive and all-wheel-drive variants in the UK, and the drivetrain layout can affect underbody packaging, which in turn may influence tank design or fitment. Your engine code will help the breaker identify which drivetrain the donor tank originated from, and you should confirm with them that the AWD or FWD configuration of the donor matches yours before proceeding. Do not assume the tanks are interchangeable across drivetrain types without the breaker verifying it against both registrations.