Used Hyundai i40 Dual Mass Flywheel

Yes, the i40 was fitted with a dual mass flywheel (DMF) on its diesel variants — specifically models equipped with the 1.6 CRDi and 1.7 CRDi engines paired with a manual gearbox. Petrol-engined i40s and any automatic transmission variants do not use a DMF, so it is worth confirming your fuel type and gearbox type before searching. Check your V5 or run a VIN check to confirm your engine code.

The engine code is the single most important detail for sourcing the correct DMF, as flywheels are engineered to match the engine's torque output and the gearbox input shaft. On the i40, the relevant diesel engine codes are D4FC (1.6 CRDi) and D4FD (1.7 CRDi) — a DMF from one may not interchange with the other even if both cars look identical. Always supply your engine code, found on your V5 logbook or via a VIN check, when requesting quotes from a breaker.

The Hyundai i40 ran as a single generation from 2011 to 2019 in the UK, with a facelift arriving around 2015, and while the core engine codes remained consistent across that span, ancillary components and mounting details can vary between pre-facelift and post-facelift cars. If you are looking at a DMF from a 2012 car for a 2016 car, or vice versa, you should confirm compatibility with the breaker against your exact registration rather than assuming a straightforward swap. Providing your registration or VIN gives the breaker the best chance of matching the correct unit.

The i40 facelift arrived around 2015, and while the diesel engine codes were carried over, it is not safe to assume the DMF is a direct swap across that boundary without checking — ancillary and mounting changes can occur mid-production even when the engine family stays the same. Name the boundary to your breaker and ask them to cross-reference the part number against your registration. Never assume a like-for-like fit based on engine code alone when crossing a facelift year.

No — trim level has no bearing on which dual mass flywheel you need. The DMF is determined entirely by your engine code and gearbox type, not by whether your car is an S, Active, Style, or Premium. You can safely disregard trim level when sourcing this part, though do be aware that other ancillary parts stripped from a donor car may differ cosmetically between trims.

Solid flywheel conversion kits do exist as an aftermarket option for some diesel applications, but whether one suits your specific i40 engine code and use case is a question for a specialist mechanic rather than something a breaker can advise on. A used genuine DMF from a breaker is often the most cost-effective route for a standard road car. If you do go the conversion route, you will also need a compatible single-mass clutch kit, so factor that into your enquiries.