Mazda MX-5 II (NB) (1998 – 2005)

Reliability score : 8.2/10

The second-generation Mazda MX-5, codenamed NB (1998-2000) then NBFL after its facelift (2001-2005), succeeds the legendary NA. Constrained by pedestrian safety standards, it abandons pop-up headlights in favor of fixed optics, while retaining the Jinba Ittai philosophy (the oneness of horse and rider). More rigid, more aerodynamic, and equipped with a real glass rear window (standard on most trims), it gains in comfort without sacrificing its agility. Mechanically, it is a model of exceptional reliability. However, its reputation is heavily tarnished by a major and recurring problem: structural corrosion. This is an enthusiast's car, and its purchase must be conditional on a rigorous inspection of the underbody.

✅ Strengths

Exceptional mechanical reliability (engines and gearboxes almost indestructible)
Exemplary road handling (rear-wheel drive, 50/50 weight distribution)
Very low maintenance and insurance costs
Availability and price of spare parts (huge aftermarket)
Manual gearbox among the best in automotive history
Very active enthusiast community (tutorials, forums, clubs)

⚠️ Weaknesses

Devastating structural corrosion (the worst enemy of this model)
Almost non-existent soundproofing on the highway (wind and road noise)
Limited interior space for people over 1.85m
Restricted trunk volume (144 liters)
Original paint (especially the clear-coated red) prone to fading and flaking

🎯 Verdict

The Mazda MX-5 NB is a fantastic sports car, offering an unbeatable price/pleasure/mechanical reliability ratio. The 1.6 and 1.8 engines are models of robustness that can easily exceed 300,000 km with basic maintenance. However, buying an NB comes down to one word: RUST. The mechanics should only be a secondary criterion during the visit. If the front chassis rails or sills are attacked, the bodywork costs will often exceed the value of the car. Prioritize a healthy example, even if it means paying more, or a model imported from a dry region. If the chassis is sound, it's a no-brainer purchase.

Common issues

Corrosion du châssis et de la carrosserie (bas de caisse, passages de roues, longerons) High

🔧 Dès 80 000 km (fortement dépendant du climat et entretien)

💶 500 – 2 500 € (pour réparations localisées, peut être plus pour restauration)

Inspecter minutieusement les zones sensibles à la rouille avant tout achat.

Problèmes d'actionneur VVT (moteur 1.8L VVT uniquement, 2001-2005) Medium

🔧 100 000 – 180 000 km

💶 300 – 700 €

Vérifier l'historique d'entretien et écouter le moteur pour des bruits anormaux.

Fuites d'huile moteur (joints de cache-culbuteurs, joint de vilebrequin arrière) Medium

🔧 Dès 120 000 km

💶 200 – 600 € (selon l'origine de la fuite)

Examiner le moteur et le sol sous la voiture pour toute trace d'huile.

Défaillance des bobines d'allumage Medium

🔧 100 000 – 160 000 km

💶 200 – 400 € (pour le remplacement des 4 bobines)

Tester le moteur pour des ratés d'allumage ou un ralenti instable.

Usure ou déchirure de la capote souple et/ou décollement de la lunette arrière Low

🔧 Variable, souvent après 10-15 ans d'âge

💶 600 – 1 200 € (remplacement complet de la capote)

Vérifier l'état de la toile, des coutures et de la lunette arrière pour l'étanchéité.

Estimated maintenance costs

Oil change	£70 – 130
Timing belt	£500 – 1 000
Clutch	£650 – 1 200
Complete brakes	£250 – 500
Estimated annual budget	£500 – 950

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