The selected i30 FD tank is restricted to the 1.6L D4FB turbo-diesel automatic application. The tall petrol overflow bottle is a different part, and the i30 name alone does not resolve the selection.
Check the engine and gearbox before comparing the bottle shape. Manual-transmission, petrol and later GD applications are outside this particular offer.
Keep the FD application record together
The FD diesel automatic tank with cap is listed for the hatchback or CW wagon within 11/2007–11/2012, using reference 25431-2H100.
Record the actual build month, model code, engine and transmission with the original number. A broad i30 year range or another part’s application record should not widen this tank’s scope.
Compare the compact tank and cap arrangement
Match the moulded shape, metal pressure-cap arrangement, hose outlets and integral mounting supports. Use corresponding views so the filler and outlet positions can be compared with the original.
The photograph does not establish an unlisted cap rating, reservoir capacity or coolant specification. Ask for the required detail rather than estimating a dimension or reading a blurred label as authoritative.
Check the tank-and-cap package
The selected offer contains one tank with the cap shown. Hoses and coolant are not included. Have the installer determine any other parts and materials required for the diagnosed repair.
A package description does not diagnose the cause of coolant loss or a temperature complaint. Keep that fault question separate from the identification of the tank.
Provide the details that distinguish this version
Send the VIN, build month, FD hatch/CW wagon identification, D4FB engine, automatic-transmission confirmation, original reference and accessible photographs of the tank, cap, outlets and mounts. Leave any mismatch unresolved until checked against the actual vehicle and use the vehicle-specific service procedure for fitting.
Prepared from application records and the linked product photographs. The featured workshop scene is an AI-generated editorial illustration. Information reviewed on 3 November 2026.