Second Hand Hyundai i40 Gearbox

The Hyundai i40 was sold in the UK from 2011 to 2019 as a single generation, with a facelift arriving in 2015 that brought updated styling and some revised equipment. For a mechanical part like the gearbox, the facelift is less significant than the engine code and gearbox type, but it is worth noting the production boundary if you are sourcing a used unit. Always confirm the exact specification with the breaker using your registration or engine code.

A 2012 i40 sits in the pre-facelift period and a 2016 model is post-facelift, so this question crosses the 2015 production boundary. The engine code is the most reliable guide here — if both cars share the same engine code and gearbox type (manual or automatic), fitment is more likely, but ancillary or mounting changes can occur across a facelift boundary. Supply your registration and engine code to the breaker and ask them to verify compatibility before buying.

Trim level does not determine gearbox fitment on the i40 — Classic, Sport, and Premium are equipment and cosmetic grades, not mechanical variants. What actually matters is whether your car has the petrol or diesel engine, which specific engine code it carries, and whether it is a manual or automatic. You may find cosmetic differences between donor and recipient cars, but these have no bearing on whether the gearbox itself will fit.

Yes — mechanical parts like gearboxes follow the engine code, not the model year or badge. Two i40s built the same year can have different engines and therefore incompatible gearboxes, while two cars several years apart with the same engine code are far more likely to be compatible. Check your V5 logbook or run a VIN check to find your engine code, then give that detail to the breaker rather than relying on the year alone.

The gearbox itself is an engine-driven mechanical component, so body style — saloon or estate — does not affect which unit you need. The diesel and petrol engine codes are what determine compatibility, along with whether the car is manual or automatic. Give the breaker your engine code and registration and they will be able to confirm the correct unit regardless of which body style your car is.

Whether a used gearbox requires ECU pairing or immobiliser coding to your specific vehicle is not something we can state as a blanket rule, as it depends on how the car's electronics are configured and can vary between units and production dates. This is an important question to put directly to the breaker and your fitting garage before you buy, so there are no surprises on the day. A good breaker will be familiar with any known coding requirements for the units they supply.