2003 — 2006
2.0L HDi I4 (DW10 ATED4)
Diesel
Operate the electric sliding side doors multiple times using the key fob, overhead console buttons, and B-pillar buttons. Watch for halting, shuddering, or reversing direction. | Note: The 807's multiplex wiring (VAN/CAN-bus system) is notoriously fragile. Water ingress or frayed cables can cause sliding door sensor failures, which are expensive to diagnose and repair in New Zealand due to parts availability.
Accelerate hard uphill in third or fourth gear and monitor the multi-function display for 'Diesel Anti-Pollution Filter Minimum Level' or 'Engine Antipollution Fault' warnings, or sudden loss of power (limp mode). | Note: The DW10 ATED4 engine uses an early DPF (FAP) system that relies on Eolys fluid. If the fluid runs dry or the filter clogs due to short urban drives, the car will default to limp mode, requiring specialist diagnostic tools to resolve.
Listen closely to the auxiliary belt area at idle with the air conditioning switched on and off. Listen for metallic rattling, chirping, or excessive engine vibration. | Note: The dual-mass crankshaft pulley (harmonic balancer) on these HDi engines wears out. If it disintegrates, it can slip under the timing belt cover, causing catastrophic engine failure.
During a cold start, turn the steering lock-to-lock and feel for heavy spots or notches, and listen for a whining noise from the power steering pump. | Note: Power steering high-pressure pipes on the 807 are prone to corrosion and leaks under NZ WoF standards, and finding replacement lines locally can be difficult, often requiring custom fabrication.
Minor service including high-quality fully synthetic 5W-40 oil change, oil filter, cabin pollen filter replacement, and lubrication of the sliding door guide tracks.
Intermediate service including diesel fuel filter replacement (crucial for protecting common rail injectors), engine air filter, and inspection/top-up of the Eolys DPF additive fluid tank.
Critical major service. Timing belt and water pump replacement is due (interval is 100,000km or 7 years). Replace the crankshaft harmonic balancer pulley and inspect front suspension control arms and bushes.
Verify the status of the Eolys DPF additive fluid levels and ensure the system counter has been reset via Peugeot-specific diagnostic software.
Regularly clear the plenum chamber water drains below the windscreen to prevent water overflowing into the cabin and damaging the BSI (body control module).
Inspect and spray electrical contact cleaner on the sliding door brass contacts located on the door pillars to maintain reliable VAN-bus communication.
Ensure only Peugeot/Citroën spec low-SAPS oil is used during oil changes to prevent premature clogging of the Diesel Particulate Filter.
Check the condition of the COM2000 steering column switch unit, as worn internal ribbon cables can disable indicator self-cancelling, wipers, and airbag systems.
Estimated repair costs if issues arise
Mandatory preventive maintenance. If the belt snaps, the valves will bend, resulting in a scrap engine.
Requires purchasing the correct generation of Eolys fluid and using PSA-specific software (Lexia/Diagbox) to reset the additive ECU.
If the physical drive cables snap or the ECU fails, complete replacement assemblies are generally imported from Europe.
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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