2000 — 2004
2.2L I4 (EW12J4)
Petrol
Operate the indicator stalks and headlights repeatedly while driving. | Note: The 'Comms 2000' switch unit is a frequent failure point; indicators may fail to cancel or lights may flicker, costing significantly to replace as the unit is integrated.
Listen for rhythmic clunking or knocking from the rear over uneven surfaces. | Note: Rear suspension rose joints and drop links are prone to premature wear, causing 'rear-end steer' sensations and requiring specialist replacement.
Observe the idle quality and listen for a 'diesel-like' tapping from the top of the engine. | Note: The 2.2L EW12J4 engine uses a VVT (Variable Valve Timing) sprocket that can fail, leading to rough running and expensive mechanical repairs.
Check the central multi-function display for missing pixels or fading as the cabin warms up. | Note: LCD screens in the 406 are notorious for heat-related pixel fade; replacements are becoming harder to source in NZ and often require matching part numbers.
Standard synthetic oil change, inspection of brake pads for glazing, and pollen filter replacement.
Critical cambelt (timing belt) and water pump interval; failure to replace this can lead to catastrophic engine damage on the EW12J4.
Major service including spark plugs, coolant flush, and inspection of the AL4 automatic gearbox solenoids (if applicable).
Cambelt and water pump replacement (every 4-5 years or 80k km for NZ conditions).
Transmission fluid refresh (especially for AL4 automatic variants, despite 'sealed for life' claims).
Throttle body cleaning to prevent erratic idling and stalling issues.
BSI (Built-in Systems Interface) unit inspection for signs of water ingress near the fuse box.
Cooling system pressure test to check the plastic thermostat housing for hairline cracks.
Estimated repair costs if issues arise
Essential preventative maintenance to avoid engine seizure.
Usually required if the engine sounds like a diesel at idle.
Common WOF failure item for the 406 model range.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer