Used Hyundai i40 Fuel Tank

The Hyundai i40 was sold as a single generation in the UK, running from 2011 to 2019, with a facelift arriving in 2015, so a 2013 and a 2015 car sit either side of that facelift boundary. The core tank is likely to be the same, but mounting points, sender unit connections, or ancillary fittings can change across a facelift year, so you should confirm the specific part interchange with the breaker against your registration before buying.

Yes — the engine code is the most important detail for fuel tank fitment, as diesel and petrol variants will have tanks designed around different fuel systems and may differ in filler neck design, sender unit type, or capacity. Always check the engine code from your V5 or a VIN check and share it with the breaker so they can match the correct tank to your car. Never assume a diesel tank will cross-fit a petrol model or vice versa.

Trim level does not affect fuel tank fitment on the Hyundai i40 — Classic, Active, Style, and Premium are specification grades that govern interior and equipment differences, not the fuel system. The tank itself follows the engine code and fuel type, so a tank from a lower-spec car is mechanically compatible with a higher-spec one running the same engine, though minor cosmetic differences in surrounding trim or access panels may be present. Confirm the engine code and fuel type match rather than worrying about the trim badge.

Within the same generation (2011–2019), tanks from the same engine code and fuel type are the most likely candidates for a compatible swap, but mid-production engineering changes can affect sender unit connectors, mounting brackets, or vent pipe routing without being publicly documented. Give the breaker both the donor car's registration and your own so they can verify the parts match before you commit to buying.

Gearbox type can occasionally influence fuel tank shape or positioning where the transmission tunnel differs between manual and automatic variants, so it is worth mentioning your gearbox type alongside the engine code when asking a breaker for a quote. It is less critical than the engine code and fuel type, but providing all three details costs nothing and helps the breaker source the most accurate match for your i40.

A used tank from a reputable breaker is a common and cost-effective solution for this failure, provided it is free from corrosion, cracks, and damage to the sender unit housing and filler neck. Ask the breaker to confirm the tank has been pressure-checked or inspected, and make sure the engine code and fuel type match your car exactly before purchasing. Have a trusted independent garage fit it, as fuel system work requires the correct sealing and testing to be safe and MOT-compliant.