2004 — 2008
2.0L I4 (EW10A)
Petrol
Check for any 'Depollution System Fault' messages on the dashboard during a cold start and acceleration. | Note: This is a generic Peugeot error often caused by oxygen sensors, coil packs, or carbon buildup in the EW10A head.
Cycle the AL4 automatic transmission through all gears under varying loads, specifically when cold. | Note: The AL4 gearbox is prone to solenoid failure; harsh shifts or 'Automatic Gearbox Fault' messages indicate expensive valve body repairs.
Drive over speed bumps or uneven surfaces at low speeds while listening for knocking or creaking from the front. | Note: The 407 uses a complex double-wishbone setup; the lower swivel hubs and bearings are high-wear items and expensive to replace in NZ.
Operate every electrical switch, including indicators, wipers, and the central display unit. | Note: The COM2000 unit (steering column switch) and the center LCD screen are prone to failure; screens often fade or black out when the cabin gets warm.
Standard synthetic oil change and filter replacement; inspect brake pad wear as the 407 is heavy on its front discs.
Major service including spark plugs and cabin filter; inspect front suspension bushings and lower swivel joints for play.
Critical timing belt and water pump replacement interval; also perform a partial ATF drain and refill for the AL4 transmission.
Verify timing belt replacement history (strictly every 4 years or 100,000km in NZ conditions).
Inspect the power steering high-pressure hose for leaks and fluid foaming.
Check the condition of the plastic thermostat housing for coolant seepage.
Scan for logged ABS/ESP sensor faults using a Peugeot-specific diagnostic tool.
Ensure the battery is high-spec and fully charged to prevent 'ghost' electrical errors.
Estimated repair costs if issues arise
Essential preventative maintenance to avoid catastrophic engine failure.
Common mechanical failure; usually required for WOF if knocking is present.
Required if the gearbox enters 'limp mode' (3rd gear lock) or shifts violently.
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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