2005 — 2008
1.6L I4 (DV6TED4)
Diesel
Listen closely for a high-pitched siren or whining noise from the engine bay during acceleration. Ask for service records proving engine oil changes at intervals shorter than 10,000 km. | Note: The DV6TED4 engine is infamous for turbocharger oil starvation. A tiny micro-filter inside the turbo oil feed pipe easily clogs with carbon sludge, leading to sudden turbo failure.
Remove the plastic engine cosmetic cover. Inspect around the base of the fuel injectors for a black, tar-like substance ('Black Death') and listen for a distinct 'chugging' puffing sound at idle. | Note: Copper injector washers fail frequently. If ignored, escaping combustion gases form corrosive carbon deposits that contaminate the engine oil, directly contributing to the turbo failures mentioned above.
Drive the vehicle until fully warm, preferably up an incline. Watch the instrument cluster for 'Antipollution Fault' warnings or DPF/FAP warning lights. | Note: The wet DPF system relies on patented Eolys additive fluid. Short Kiwi urban runabouts clog this filter quickly, and replenishing the fluid or replacing a blocked DPF is highly specialized work.
Test the indicator stalk thoroughly in both directions, making sure it doesn't flop over to the opposite side when self-cancelling. Check headlight and wiper functions simultaneously. | Note: The steering column switch cluster (COM2000 unit) is a known weak link on the 307. Internal ribbon cables wear out, leading to malfunctioning indicators, lights, and a failed Warrant of Fitness (WoF).
Perform a strict oil and filter change using high-quality Low-SAPS (C2 specification) synthetic oil to protect the DPF. Rotate tyres and inspect front brake pads for wear due to the heavy diesel engine block.
Replace the fuel filter to protect the high-pressure common rail pump. Top up the Eolys DPF additive fluid and reset the fluid counter reservoir via Peugeot-compatible diagnostic software (Diagbox).
Replace the timing belt, tensioners, and water pump (preventative interval for NZ conditions). Inspect the crankshaft pulley (harmonic balancer) and the dual-mass flywheel (DMF) if it is a manual transmission.
Strictly use only Peugeot PSA B71 2290 approved 5W-30 Low SAPS oil to prevent soot buildup in the DPF and oil feed lines.
Inspect the fuel injector seats and copper washers at every routine service for any early signs of compression leakage.
Clean the scuttle panel drain holes beneath the windscreen regularly to prevent rainwater from flooding into the cabin and damaging the BSI (body control fuse box).
Flush the cooling system every 4 years using Peugeot-specific Glysantin G33 coolant to protect the alloy cylinder head from galvanic corrosion.
Periodically take the car for a 30-minute highway run at over 2,000 RPM to initiate an active regeneration cycle for the DPF.
Estimated repair costs if issues arise
If the turbo fails, the entire oil feed line, sump, vacuum pump, and oil pickup must be replaced or chemically flushed to avoid immediate re-failure of the new turbo.
Inexpensive if caught early, but if the injectors are seized in carbon ('Black Death'), removal requires specialized slide-hammer pullers and significant labour.
Requires steering wheel and airbag removal. Avoid cheap aftermarket units as they lack ESP sensor calibration capabilities required for NZ WoF compliance.
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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