BMW Série 4 F32/F36 (2013–2020) (2013 – 2020)

Reliability score : 7.8/10

The BMW 4 Series F32 (Coupe), F33 (Convertible), and F36 (Gran Coupe) represents the first generation of the 4 Series, introduced in 2013 to distinguish the coupes and convertibles from the 3 Series (F30) from which it is technically derived. The Gran Coupe (F36), launched in 2014, adds a practical dimension with its four doors and tailgate, while retaining the sporty line. This generation benefited from a slight facelift (LCI) in 2017, bringing minor aesthetic touches (headlights, taillights) and technological improvements (iDrive system, suspensions). The 4 Series is renowned for its driving dynamics, quality interior finish, and wide range of engines, from efficient gasoline and diesel units to powerful M versions. It offers an excellent compromise between sportiness and comfort, althou

✅ Strengths

Driving dynamics and pleasure.
Quality of finish and interior materials.
Wide range of powerful and efficient engines (especially B-series).
Elegant and sporty design (particularly the Gran Coupe).
Comfort on long journeys (excluding overly firm suspensions).

⚠️ Weaknesses

Uneven reliability of N20 and N47 engines (timing chain).
Cost of parts and maintenance at BMW.
Limited rear visibility on Coupe/Convertible.
Firm suspension on sporty versions or with M Sport options.
Road noise on highways with certain RFT tires.

🎯 Verdict

The BMW 4 Series F32/F36 is an excellent choice for anyone looking for a sporty, elegant, and well-finished coupe or Gran Coupe. However, the choice of engine is crucial for long-term reliability. Buying advice: * To prioritize: The B48 (420i/430i) and B58 (440i) gasoline engines are the most reliable and recommended. For diesel, the B47 (418d/420d/425d) is an excellent choice for high-mileage drivers. The N57 (diesel) 6-cylinders are also robust with consistent maintenance. * To negotiate/check: Early production N20 (gasoline) and N47 (diesel) engines (before 2015) require an imperative check of the timing chain history and careful listening for engine noises. If the chain has not been replaced or if a noise is present, the risk is high. * M4 (S55): For informed enthusiasts, with a significant budget for maintenance and potential modifications (Crank Hub). In all cases, a complete service history and a pre-purchase inspection by a BMW specialist are highly recommended.

Common issues

Problèmes de chaîne de distribution (moteurs N47) High

🔧 100 000 – 200 000 km

💶 2 000 – 4 000 €

Vérifier l'historique d'entretien et écouter les bruits anormaux du moteur.

Dysfonctionnement du refroidisseur/vanne EGR Medium

🔧 80 000 – 150 000 km

💶 400 – 1 200 €

S'assurer que les rappels constructeur ont été effectués; surveiller les voyants moteur.

Encrassement du filtre à particules (FAP/DPF) Medium

🔧 120 000 – 200 000 km

💶 1 200 – 2 500 € (remplacement)

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

Fuites d'huile (joints de carter, cache-culbuteurs) Low

🔧 150 000 km et plus

💶 200 – 600 €

Inspecter régulièrement le moteur et le sol sous le véhicule pour détecter les fuites.

Estimated maintenance costs

Oil change	£90 – 160
Clutch	£850 – 1 500
Complete brakes	£350 – 650
Estimated annual budget	£700 – 1 400

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