Kia Sorento IV (MQ4) (2020 – 2025)

Reliability score : 8.4/10

The fourth-generation Kia Sorento (MQ4) marks a spectacular move upmarket for the Korean manufacturer. Based on the new N3 platform, it offers an assertive design, a premium interior (up to 7 seats), and cutting-edge technology. Although electrification (HEV and PHEV) has taken center stage in Europe, the 2.2 CRDi (Smartstream) diesel remains a cornerstone for high-mileage drivers and those who tow. This engine has been thoroughly revised compared to the previous generation (UM): it adopts an aluminum block (a weight saving of 19.5 kg) and is paired with a new 8-speed wet dual-clutch gearbox (8DCT), replacing the old torque converter gearbox. A mid-cycle refresh (facelift) was presented at the end of 2023 (marketed in 2024), bringing a front end inspired by the EV9 and a modernized infotai

✅ Strengths

Exceptional interior space and true modularity (usable 7 seats)
Very torquey 2.2 CRDi engine, fuel-efficient on the road and perfectly suited to its size
Fast and smooth 8DCT gearbox (on the diesel) compared to the previous generation
Premium interior finish and careful soundproofing
Reassuring 7-year / 150,000 km manufacturer's warranty
Excellent towing capacity in diesel version (up to 2500 kg)

⚠️ Weaknesses

Suspension a bit firm at low speeds, especially with 20-inch wheels
Imposing size (4.81 m) making urban maneuvers tricky
Diesel engine unsuitable for short urban trips (rapid DPF clogging)
Pre-facelift infotainment system sometimes slow to start
Trunk volume slightly reduced on the PHEV version

🎯 Verdict

The Kia Sorento IV (MQ4) is an undeniable success that encroaches on premium SUV territory. In its 2.2 CRDi engine version, it represents the sensible choice for large families, high-mileage drivers, and those who need to tow. The aluminum block and 8DCT gearbox form a powerful and relatively fuel-efficient duo on the highway. However, this modern diesel dislikes city driving: if your use is predominantly urban or suburban, opt for the HEV or PHEV versions to avoid costly clogging problems (DPF/EGR). Before purchasing a used model (2020-2022), demand proof that the gearbox recall has been carried out. If the history is clear, it is a highly recommendable purchase.

Common issues

Problèmes de filtre à particules diesel (FAP) Medium

🔧 60 000 – 120 000 km (peut être plus tôt avec trajets courts)

💶 200 – 500 € (nettoyage) ; 1 000 – 2 500 € (remplacement)

Effectuer régulièrement de longs trajets pour permettre la régénération du FAP.

Dysfonctionnements du système AdBlue (SCR) Medium

🔧 50 000 – 100 000 km

💶 400 – 1 200 € (capteur, pompe ou injecteur)

Utiliser un AdBlue de qualité et éviter de rouler avec un réservoir vide.

Glitches et bugs du système d'infodivertissement Low

🔧 0 – 50 000 km

💶 Généralement couvert par la garantie ou mise à jour logicielle gratuite

S'assurer que les mises à jour logicielles sont effectuées régulièrement.

Estimated maintenance costs

Oil change	£90 – 160
Complete brakes	£350 – 650
Estimated annual budget	£700 – 1 300

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