2004 — 2008
2.0L I4 HDi (DW10BTED4)
Diesel
Drive over speed bumps or uneven surfaces at low speeds. | Note: Listen for heavy knocking or clunking from the front suspension. The 407 is notorious for premature wear of the lower swivel hub bearings (ball joints).
Accelerate hard in 4th or 5th gear from low RPM. | Note: Check for slipping or vibrations. Dual Mass Flywheel (DMF) failure is common on the 2.0 HDi, often accompanied by clutch slip.
Observe the center multifunction display once the cabin is warm. | Note: These screens frequently pixelate or fade entirely when hot. Replacement is the only fix and can be costly for genuine parts.
Check for 'Depollution System Fault' messages on the dashboard. | Note: Indicates issues with the DPF (Diesel Particulate Filter) or the EOLYS additive system, which can trigger limp mode.
Standard synthetic oil change (ACEA C2/C3 spec) and tire rotation. Inspect brake pad wear as the 407 is heavy on front rotors.
Critical fuel filter replacement to protect high-pressure injectors. Inspect EOLYS additive levels for the DPF system.
Major service: Timing belt (cambelt) and water pump replacement is due. Delaying this risks catastrophic engine failure.
Inspect lower front suspension swivel joints for any play or torn boots.
Check power steering fluid levels and pipes; high-pressure hoses are prone to weeping/leaks.
Ensure only Peugeot-specific EOLYS fluid is used for the DPF regeneration system.
Verify cambelt and water pump history (must be done every 10 years or 100k-150k km).
Battery health check: Low voltage causes 'ghost' electrical errors in the BSI computer.
Estimated repair costs if issues arise
Essential preventative maintenance to avoid engine destruction.
Labour intensive repair due to the complex double-wishbone setup.
Must be performed by a specialist with diagnostic software to reset the counter.
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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