Renault Megane IV (2015 – 2023)

Reliability score : 7.6/10

The Renault Mégane IV marks a stylistic and technological break from its predecessor. Based on the modular CMF-C/D platform, it offers first-class road handling, refined comfort, and ambitious technological features (vertical R-Link 2 screen, 4Control system on GT/RS). Phase 1 (2015-2020): Launch with a wide range of engines. The early days were marred by electronic bugs (R-Link 2) and the presence of the notoriously problematic 1.2 TCe. In diesel, the 1.5 dCi confirmed its status as a benchmark. Phase 2 (2020-2023): Mid-life facelift. Introduction of the Easy-Link multimedia system (much more reliable), 100% digital gauges, gradual abandonment of diesel in favor of the plug-in hybrid (E-Tech), and widespread adoption of the excellent 1.3 TCe petrol engine. Expert's overall rating: An exce

✅ Strengths

Exemplary reliability of the 1.5 dCi (K9K) engine, a road marathoner
Excellent chassis, high-level comfort/road holding compromise
4Control system (on GT and RS) offering stunning agility
Very successful 1.3 TCe engine (powerful and economical)
Significantly improved finish quality compared to the Mégane III
Easy-Link system (Phase 2) responsive and ergonomic

⚠️ Weaknesses

1.2 TCe engine to be absolutely avoided (risk of failure)
R-Link 2 multimedia system (Phase 1) slow, buggy, and prone to black screens
Capricious AdBlue systems on recent diesels (Blue dCi)
Rapid wear of front tires, particularly on versions equipped with 4Control
Rear passenger space and boot volume in the lower average of the category
Dry-clutch EDC gearbox (on 1.5 dCi) sometimes causes jerks at low speeds

🎯 Verdict

The Renault Mégane IV is a car with two faces. If you opt for a petrol model from before 2018 equipped with the 1.2 TCe, it's a financial black hole in terms of power. However, in diesel, it's a master choice. The 1.5 dCi is one of the most reliable and economical engines of its generation, ideal for high-mileage drivers. The 1.6 dCi offers an excellent compromise for those seeking more punch. For a worry-free purchase, prioritize a Phase 2 model (after 2020): you'll benefit from the excellent Easy-Link system, refined finish, and engines (1.5 Blue dCi or 1.3 TCe) that have reached full maturity. Firmly negotiate Phase 1 models due to the obsolescence of the R-Link 2.

Common issues

Encrassement ou défaillance du Filtre à Particules (FAP) Medium

🔧 80 000 – 150 000 km

💶 200 – 2 000 € (nettoyage à remplacement)

Privilégier les longs trajets réguliers pour permettre la régénération du FAP.

Encrassement ou dysfonctionnement de la vanne EGR Medium

🔧 70 000 – 130 000 km

💶 150 – 800 € (nettoyage à remplacement)

Faire vérifier et nettoyer la vanne EGR régulièrement, surtout en usage urbain.

Problèmes du système AdBlue (capteurs, pompe, réservoir) High

🔧 50 000 – 120 000 km

💶 600 – 1 500 €

Utiliser un AdBlue de qualité et éviter de rouler avec un niveau bas pour prévenir les pannes.

Usure prématurée du volant moteur bi-masse et/ou de l'embrayage High

🔧 100 000 – 180 000 km

💶 1 200 – 2 000 € (kit complet)

Tester l'embrayage et être attentif aux bruits anormaux au ralenti ou lors des changements de vitesse.

Défaillance des injecteurs (principalement 1.5 dCi) Medium

🔧 120 000 – 200 000 km

💶 300 – 600 € par injecteur

Utiliser du carburant de qualité et faire vérifier les injecteurs en cas de ratés moteur ou fumées.

Estimated maintenance costs

Oil change	£70 – 130
Timing belt	£500 – 1 000
Clutch	£750 – 1 400
Complete brakes	£220 – 480
Estimated annual budget	£550 – 1 100

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