2004 — 2008
3.0L V6 (ES9A)
Petrol
Drive over uneven surfaces and cycle through Sport/Normal suspension modes. | Note: The AMVAR electronic variable damping system is prone to leaking struts. Replacement parts are extremely expensive in NZ and often must be sourced from Europe.
Execute multiple downshifts and observe for 'thumping' or hesitation when hot. | Note: The Aisin AM6 6-speed transmission is robust but requires regular fluid changes despite Peugeot's 'sealed for life' claim. Valve body issues are common if neglected.
Full-lock turns at low speed and checking for steering heavy spots or noise. | Note: The high-pressure power steering hose often leaks directly onto the alternator, potentially causing electrical failure and a costly double-repair.
Check the dashboard multi-function display for fading or missing pixels after 20 minutes of use. | Note: The center screens are heat-sensitive and frequently fail. Repairing the LCD requires a specialized unit replacement as they are difficult to read in NZ sunlight once degraded.
Standard synthetic oil change and pollen filter replacement. Inspect brake pad thickness as the 407 is a heavy car and wears through front sets quickly.
Transmission fluid refresh (drain and fill) and spark plug replacement. The rear three plugs on the V6 are difficult to access, often resulting in them being skipped by lazy mechanics.
Critical Cambelt (Timing Belt) and water pump service. This is a high-labor job on the ES9A V6 due to the cramped engine bay. Failure results in engine destruction.
Verify the condition of the cooling system plastic T-junctions which become brittle with age.
Check for oil leaks from the cam covers, specifically the rear bank which drips onto the exhaust.
Inspect ABS/ESP wheel speed sensors for wiring degradation.
Test all door locks and window regulators for smooth operation (common Peugeot weak point).
Confirm the dual-zone climate control flap operation; broken flaps require a full dashboard removal to fix.
Estimated repair costs if issues arise
Preventative maintenance required every 10 years or 100,000km. Labor intensive on the V6.
If the active suspension fails, individual struts are significantly pricier than standard components.
ES9A engines are sensitive to coil failure. Best to replace as a full set if one fails.
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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