2000 — 2004
2.0L I4 (EW10J4)
Petrol
Perform a cold start and listen for a metallic tapping sound from the top of the engine. | Note: The EW10J4 engine is prone to hydraulic lifter noise. If tapping persists after warm-up, it indicates oil starvation or component wear.
Drive the car until fully warm, then execute several stop-start cycles and uphill accelerations. | Note: The AL4 automatic transmission is known for solenoid failure; watch for 'thumping' gear changes or the 'Automatic Gearbox Fault' warning on the dash.
Cycle the indicators and wipers multiple times while turning the steering wheel lock-to-lock. | Note: The COM2000 indicator/wiper stalk unit frequently fails. Replacement is costly as it is a single integrated electronic module.
Drive over uneven surfaces or speed bumps and listen for rear-end knocking. | Note: The 406 Break/Estate uses a specific rear suspension setup. Worn trailing arm bushes and drop links are common and affect handling stability.
Intermediate service: Oil and filter change (Total Quartz 7000 or 9000), cabin filter replacement, and brake pad inspection.
Major service: Replace spark plugs, air filter, and conduct a full transmission fluid health check (AL4 fluid refresh recommended).
Critical milestone: Complete timing belt (cambelt), tensioner, and water pump replacement. Inspect the crankshaft pulley for rubber degradation.
Cambelt and water pump replacement (strictly every 4 years or 100,000km).
Monitor coolant levels and radiator plastic end-tanks for hairline cracks.
Brake fluid flush every 2 years to prevent ABS pump contamination.
Inspect the lower engine mount (D-mount) for rubber perished/tearing.
Check sunroof drains and rear light seals on Estate models for water ingress.
Estimated repair costs if issues arise
Preventative maintenance is essential; failure results in total engine destruction.
Includes parts and specific fluid; required if the car enters 'limp mode' frequently.
Common electrical failure where indicators self-cancel or lights flicker.
Noticed something inaccurate or missing?Suggest an edit→
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