2001 — 2004
2.0L I4 (DW10ATED)
Diesel
Actively test the steering wheel stalks (COM2000 unit) by using the indicators, high beams, and wipers repeatedly, ensuring the indicators don't self-cancel prematurely or cause the headlights to flicker. | Note: The COM2000 steering column switch unit is a notorious failure point on pre-facelift 307s. Replacing the unit requires airbag removal and can trigger steering angle sensor faults.
Perform a low-speed launch on a slight incline and listen for a metallic rattling noise at idle or excessive shuddering as the clutch engages. | Note: The 2.0 HDi (DW10ATED) uses a Dual-Mass Flywheel (DMF) which is prone to wearing out prematurely. Failure will eventually ruin the clutch and can damage the gearbox bellhousing.
Accelerate hard in 3rd or 4th gear from 1,800 rpm up to 3,500 rpm while watching the multi-function display for any 'Unblock Diesel Filter' or 'Anomalie Pollution' warnings. | Note: Early FAP (DPF) systems on these Peugeot diesels clog easily if driven mainly on short city trips, and the Eolys fluid system requires specialized maintenance to function.
Drive over rough Kiwi chip-seal roads at 50 km/h and listen for knocking or clunking sounds from the front end, then check for steering wheel shimmy at 100 km/h. | Note: Front suspension lower control arm bushes and sway bar end links wear out rapidly on rough New Zealand roads, causing vague steering and WOF failures.
Perform a standard oil and filter change using high-quality 5W-40 or 10W-40 synthetic oil. Drain water from the diesel fuel filter housing and check the condition of the cabin pollen filter.
Replace the diesel fuel filter (critical to protect the common-rail injectors) and the engine air filter. Inspect the auxiliary drive belt for cracking and check the front brake pads and rotors for wear.
Replace the timing belt, tensioners, and water pump (crucial interval of 5 years or 100,000km to avoid catastrophic engine failure). Top up the Eolys DPF additive fluid and perform a full cooling system flush.
Verify the timing belt and water pump replacement history (crucial for the DW10ATED engine to prevent valve-to-piston contact).
Check the condition of the main engine earth straps to prevent phantom electrical faults in the multiplexed BSI system.
Ensure only PSA-approved coolant (G33 / Glysantin G30) has been used to avoid clogging the fragile heater matrix.
Inspect the vacuum lines leading to the turbocharger wastegate and EGR valve for cracking, which causes sudden power loss.
Check the boot floor and passenger footwells for dampness, indicating blocked cabin filter drains or a leaking heater core.
Estimated repair costs if issues arise
Preventative maintenance required every 5 years or 100k km. Best done at a Euro specialist mechanic in NZ to ensure correct tensioning.
High labor costs due to subframe drop. Some owners convert to a Solid Flywheel conversion kit to eliminate future DMF failures.
Sourcing a new OEM unit is expensive; requires diagnostic scan tool (Lexia/Diagbox) to code the steering angle sensor post-install.
Requires the physical fluid top-up of Eolys behind the left rear wheel, followed by a software counter reset using Peugeot-specific diagnostics.
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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