The NC MX-5 launched in the UK as the most versatile and practical roadster in the model's history. The 1.8 and 2.0 engines proved robust, though oil level sensitivity became a known concern.
Road salt and trapped moisture cause the metal to rot from the inside out.
Bubbling paint on rear arches, Crunchy sound when pressing sills
The NC MX-5 is prone to misfires caused by deterioration of the thin wiring to the ignition coils, which leads to coil failure. Symptoms include rough idle, hesitation under acceleration and the engine management light. The fix is typically new coils and plugs.
Misfire at idle or under load, Engine management light flashing, Rough running or hesitation
The plastic rear window on the soft-top can haze or craze with age, reducing rear visibility. More seriously, the roof seals and rain rails can fail, letting water into the cabin and accelerating sill corrosion from the inside.
Hazy or opaque rear window, Damp carpets behind the seats, Musty smell after rain
A loud ticking noise from the engine, especially when cold, is often caused by sticking hydraulic valve lash adjusters. This is more common on higher-mileage cars or those that have not had regular oil changes. Replacing the adjusters resolves the noise.
Ticking noise from engine on cold start, Noise reduces or disappears once warm, Persistent tick at idle