Mazda MX-5
1.8-litre MZR four-cylinder with variable valve timing, chain drive, and a silky high-revving character. Light engine with a low centre of gravity that does without a turbo and delivers all its power above 4,000 rpm. At high mileage, watch for slightly elevated oil consumption.
The Honest Starting Point
126 hp in the NC sounds modest — until the engine properly wakes up above 4,500 rpm. On country roads the 1.8 MZR is a willing companion: no turbo lag, no drama, just an engine that says 'rev me'. For motorway overtakes, take the 2.0.
Engine Weaknesses 6
Specifically model years 2006–2008 exhibit extreme oil consumption (over 1 l/500 km). Oil scraper rings stick; no oil level warning fitted. Ignoring this risks catastrophic engine failure.
Symptoms: Extremely high oil consumption, bluish smoke from the exhaust, no oil level warning
Insufficient oil return drillings can cause oil starvation at the conrod bearings under high load. Mainly affects model years 2006–2009 with spirited driving.
Symptoms: Knocking noise from the engine, oil pressure warning light, sudden power loss
Timing chain rather than belt, but the chain tensioner wears. Rattling on cold start indicates diminishing chain tension. Replacing in time prevents chain jump.
Symptoms: Rattling from the timing chain area on cold start that disappears once warm
Thermostat sticks partially open — engine fails to reach operating temperature or overheats. Best to replace water pump and thermostat together.
Symptoms: Temperature gauge fluctuates, engine fails to warm up or overheats, weak heater output
The camshaft sensor of the LF-VE on the MX-5 NC is prone to deposits and contact issues. Results are fault code P1345 or P0340, stumbling, and in severe cases engine shutdown while driving.
Symptoms: Engine hesitates or stumbles; check engine light; in severe cases engine dies while driving.
The valve cover gasket of the LF-VE becomes porous from around 100,000 km. Oil seeps from the cam cover edge and can drip onto the exhaust manifold, causing a faint burning smell.
Symptoms: Oil patches at the cam cover edge; faint burning smell after switching off; oil traces on the engine block below the cam cover.
Vehicle Weaknesses 9
The Mazda MX-5 NC rusts at the wheel arches, sills, door lower edges and rear bumper mounts. Inadequate factory corrosion protection is a well-known NC issue considered to span generations.
The MX-5 NC's fabric hood chafes against the mechanism arms due to excessive manufacturing tolerances and becomes water-permeable. Water enters the interior. Hood replacement costs around €1,500.
Blocked drain channels in the hood compartment or worn hood seals allow water into the interior or boot. Moisture damage to electrical components is possible.
The NC's AC condenser and seals develop leaks over time and lose refrigerant. Often only a twisted O-ring at the drain is the cause, replaceable for around €5 — rather than the compressor for €550–1,000.
Control arm bushes and drop links on the MX-5 NC age noticeably from around 60,000 km with spirited use. Rubber bushes go soft and lose precision.
The MX-5 NC tends towards increased rear tyre wear during spirited driving. Regular wheel alignment is recommended, as the factory alignment tolerances are set wide.
The NC's steering does not automatically return to centre after small steering inputs. The vehicle tracks ruts and pulls at the wheel, requiring constant correction. Often caused by incorrect wheel alignment geometry.
The NC's 6-speed manual gearbox shifts stiffly at low temperatures. 2nd and 3rd gear in particular can only be engaged by double-clutching or with increased effort during a cold start. The predecessor's 5-speed gearbox does not exhibit this problem.
The central locking actuator motor in the driver's door loses torque and no longer locks the door reliably. The complete lock assembly must be replaced as the motor is not available separately.
Reports & Tests
15 owner complaints filed with NHTSA (2005–2015). Most reported: Brakes (4), Body Structure (3), Airbags (2).