Mazda Mazda2 I (DY) (2002 – 2007)

Reliability score : 8.2/10

The first-generation Mazda2 (code DY), sold as the Mazda Demio in Japan, marked a turning point for the manufacturer by replacing the old Demio with a more modern model, designed under the partnership with Ford. Based on the B3 platform (shared with the Ford Fiesta Mk5 and Ford Fusion), it adopted a "mini-MPV" (tall-boy) architecture offering excellent spaciousness for its size (3.92 m). A facelift occurred in 2005, bringing redesigned headlights, new bumpers, improved sound insulation, and better quality interior plastics. While its cubic design lacks a bit of dynamism compared to subsequent generations, its reliability (especially for gasoline engines) and practicality make it an excellent used city car. The overall reliability score is very good, although marred by the corrosion sensiti

✅ Strengths

Overall reliability of gasoline engines (very robust Ford Sigma blocks)
Remarkable spaciousness and trunk volume (268 to 1044 liters) for less than 4 meters
Healthy and dynamic road handling (chassis shared with the Ford Fiesta)
Raised driving position appreciated in the city
Reduced maintenance cost and easy-to-find mechanical parts (Ford compatibility)

⚠️ Weaknesses

Significant sensitivity to corrosion (underbody, rear wheel arches)
Imperfect sound insulation (wind and road noise), especially before the 2005 facelift
Hard interior plastics prone to scratches (phase 1)
Variable reliability of the 1.4 MZ-CD diesel engine (injector seals)
ASM automated manual transmission is slow, causes jerks, and is expensive to repair
Suspension a bit firm at low speeds

🎯 Verdict

The first-generation Mazda2 (DY) is an extremely rational and smart used car choice, provided you target the gasoline engines. The 1.25, 1.4, and 1.6 blocks (Ford-sourced) are indestructible if properly maintained. Its tall architecture offers spaciousness worthy of the segment above. The main enemy of this model is rust: a rigorous inspection of the underbody is imperative before purchase. Avoid the diesel versions (1.4 MZ-CD), whose injector problems can cost more than the car's value, as well as the ASM automated manual transmission. Prioritize a facelifted gasoline model (post-2005) with a manual gearbox for absolute peace of mind.

Common issues

Corrosion du châssis et de la carrosserie (bas de caisse, passages de roue, soubassements) Medium

🔧 Dès 100 000 km (variable selon climat)

💶 500 – 2 000 €

Inspecter régulièrement la carrosserie et le châssis, surtout dans les régions humides/salées.

Usure des silentblocs de suspension (avant et arrière) Medium

🔧 80 000 – 150 000 km

💶 300 – 700 €

Écouter les bruits de claquement sur routes dégradées et vérifier le jeu dans le train roulant.

Défaillance de la sonde Lambda (sonde à oxygène) Low

🔧 100 000 – 180 000 km

💶 150 – 350 €

Un voyant moteur allumé peut indiquer cette panne, vérifier le diagnostic.

Corrosion du système d'échappement (silencieux, tubes) Low

🔧 100 000 – 180 000 km

💶 200 – 600 €

Vérifier l'état de l'échappement, surtout les soudures et colliers, pour éviter les fuites.

Estimated maintenance costs

Oil change	£70 – 130
Timing chain	£650 – 1 200 (si remplacement nécessaire)
Clutch	£550 – 1 000
Complete brakes	£280 – 550
Estimated annual budget	£450 – 900

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