The eighth-generation Hyundai Sonata (codename DN8) marks a radical break from its predecessors. Based on the new N3 platform, it adopts a bold "four-door coupe" design (Sensuous Sportiness) and introduces the new Smartstream engine family. This generation is crucial as it definitively abandons the Theta II engine family (2.0T and 2.4 GDI), infamous for their excessive oil consumption problems and fire risks (which earned Hyundai multiple recalls and massive warranty extensions). The DN8 stands out with significantly improved reliability, cutting-edge technological equipment, and a particularly efficient hybrid version. A major facelift was carried out for the 2024 model year, introducing the "Seamless Horizon" lighting signature.
The 8th generation Hyundai Sonata (DN8) is an excellent choice on the used market, marking a true renaissance in terms of reliability for the model. The introduction of the Smartstream engines makes it possible to forget the serious problems (failures, fires) of the old Theta II blocks that equipped the YF and LF generations. The naturally aspirated 2.5L and 2.0L Hybrid versions are particularly recommended for their robustness and peace of mind. The sporty N Line version (2.5 T-GDI) is appealing but requires strict monitoring of recalls (fuel leak, DCT gearbox reprogramming). Before purchase, checking the Vehicle Identification Number (VIN) is essential to ensure that the various early recalls (tank, ISG pump) have been properly corrected at the dealership.
| Oil change | £70 – 130 |
| Timing chain | £850 – 1 700 (remplacement si problème, non routinier) |
| Complete brakes | £300 – 600 |
| Estimated annual budget | £500 – 1 000 |
Indicative estimates (independent garage, UK market). Prices vary by region and year.