Hyundai Sonata VII (LF) (2015 – 2019)

Reliability score : 6.8/10

The seventh-generation Hyundai Sonata (codename LF) marks a turning point towards greater maturity compared to the previous generation (YF). Its design is more conservative, but it gains considerably in structural rigidity, soundproofing, and finish quality. The Hybrid (HEV) and Plug-in Hybrid (PHEV) version, which is the focus of particular attention here, is a major strategic choice: it uses the 2.0L engine from the Nu family, thus avoiding the catastrophic setbacks of the Theta II family (2.4L and 2.0T) that tarnished the model's reputation in North America. Comfortable, spacious, and equipped with a true 6-speed automatic gearbox (unlike Toyota's e-CVTs), the Sonata Hybrid is an excellent cruiser, although its image is clouded by the massive recalls affecting the other engines in the l

✅ Strengths

Overall reliability of the Hybrid version (robust 2.0L Nu engine)
Driving pleasure of the hybrid thanks to the true 6-speed automatic gearbox
Excellent roominess and generous trunk volume
Soundproofing and ride comfort significantly improved compared to the YF generation
Long-term manufacturer warranty (5 years/unlimited mileage or 10 years/100k miles depending on markets)

⚠️ Weaknesses

Disastrous reliability of non-hybrid petrol engines (Theta II 2.4 and 2.0T)
Dual-clutch gearbox (DCT) on the 1.6T and 1.7 CRDi lacking smoothness and longevity
Electric power steering (MDPS) sometimes vague or requiring corrections
Quality of some interior plastics that scratch easily
Significant depreciation due to the bad reputation of conventional combustion engines

🎯 Verdict

The Hyundai Sonata (LF) is a car with two faces. If you opt for the conventional combustion versions (2.4 GDI or 2.0T), the risk of engine failure (Theta II) is far too high to justify the purchase, despite the warranty extensions. On the other hand, the Hybrid (HEV) or Plug-in (PHEV) version is highly recommendable. Equipped with the 2.0 Nu engine, it escapes the flaws of its combustion siblings and offers excellent reliability, controlled fuel consumption, and great comfort. It is an excellent alternative, often cheaper on the used market, to a Toyota Camry or a Honda Accord, provided you carefully check the history of electronic and bodywork recalls.

Common issues

Dégradation ou défaillance de la batterie hybride haute tension High

🔧 120 000 – 200 000 km

💶 2 000 – 4 000 €

Vérifier l'état de la batterie hybride et l'historique de charge.

Consommation d'huile moteur excessive ou encrassement des soupapes (moteur 2.0L GDI) Medium

🔧 80 000 – 150 000 km

💶 500 – 1 500 €

Surveiller le niveau d'huile régulièrement, envisager un décalaminage préventif.

Problèmes de transmission automatique (à-coups, hésitations, défaillance) Medium

🔧 100 000 – 180 000 km

💶 1 500 – 3 000 €

Tester la douceur des passages de vitesses, vérifier l'historique d'entretien de la boîte.

Décharge rapide de la batterie auxiliaire 12V Low

🔧 Variable, souvent après 3-5 ans

💶 100 – 300 €

S'assurer que la batterie 12V est récente et bien chargée, vérifier les drains parasitaires.

Estimated maintenance costs

Oil change	£70 – 130
Timing chain	£650 – 1 200
Complete brakes	£280 – 580
Estimated annual budget	£650 – 1 300

Indicative estimates (independent garage, UK market). Prices vary by region and year.