Alfa Romeo 147 I phase 2 (937) (2004 – 2010)

Reliability score : 7.2/10

The Alfa Romeo 147 Phase 2 (Type 937) was restyled in late 2004 by Giorgetto Giugiaro, abandoning Walter de Silva's original lines for a more aggressive front end, inspired by the 159. A premium compact ahead of its time, it stands out for its exceptional road handling thanks to its double wishbone front axle. While interior finish improved with the restyling, the 147 remains a demanding car in terms of maintenance. On the used car market, diesel engines (JTD and JTDM) are the most common and, paradoxically, often more robust than the Twin Spark petrol units, provided that emission control peripherals and the intake system are monitored. The Q2 version (Torsen limited-slip differential) which appeared in 2006 is particularly sought after for its traction and the robustness of its transmiss

✅ Strengths

Exceptional road handling (incisive front axle)
Ultra-direct hydraulic steering (2.2 turns lock-to-lock)
Timeless design, especially in Phase 2
Robustness of the 1.9 JTD engine block (indestructible bottom end)
Warm interior presentation and 'cannocchiale' gauges
Q2 versions offering sports car-like traction

⚠️ Weaknesses

Very fragile running gear (upper/lower wishbones to be changed every 60-80,000 km)
Catastrophic turning radius (difficult in town)
Capricious electronics (airbag warning lights, CANBUS errors)
Risk of engine failure on 150hp JTDM (intake manifold flaps)
Overly demanding maintenance for Twin Spark petrol engines (timing belt)
Unreliable and slow Selespeed gearbox

🎯 Verdict

The Alfa Romeo 147 Phase 2 is a compact for enthusiasts. If you're looking for a low-maintenance daily driver, look elsewhere. However, if you love to drive, it offers a rare road feel. For diesel, opt for the 1.9 JTDm 8v (120 hp) for maximum reliability at a lower cost. If you choose the 1.9 JTDM 16v (150 hp), imperatively ensure that the intake manifold flap issue has been resolved, otherwise, engine failure is a risk. Q2 or Ducati Corse versions are future collectors. Plan for a regular budget for the running gear (wishbones) and avoid Selespeed gearboxes.

Common issues

Vanne EGR encrassée ou défectueuse Medium

🔧 80 000 – 150 000 km

💶 250 – 500 € (nettoyage moins cher)

Nettoyer régulièrement la vanne EGR, surtout en usage urbain.

Volets de turbulence (Swirl flaps) du collecteur d'admission (moteurs 1.9 JTDm 16v) High

🔧 100 000 – 180 000 km

💶 600 – 1 200 € (remplacement collecteur)

Vérifier l'état des volets, envisager une suppression ou un remplacement préventif.

Usure prématurée des triangles de suspension avant (bras inférieurs et supérieurs) Medium

🔧 60 000 – 120 000 km

💶 300 – 600 € (pour une paire, pièces et main-d'œuvre)

Écouter les bruits de claquement, vérifier le jeu régulièrement pour la sécurité.

Volant moteur bi-masse et embrayage usés Medium

🔧 120 000 – 200 000 km

💶 1 000 – 2 000 €

Surveiller les vibrations au ralenti ou le patinage de l'embrayage.

Défaillance de l'alternateur Medium

🔧 150 000 – 250 000 km

💶 400 – 800 €

Vérifier la tension de charge de la batterie, surtout sur les modèles plus anciens.

Estimated maintenance costs

Oil change	£70 – 130
Timing belt	£550 – 1 100
Clutch	£900 – 1 800
Complete brakes	£280 – 580
Estimated annual budget	£650 – 1 300

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