2008 — 2013
2.0L I4 Turbo (DW10BTED4)
Diesel
Accelerate hard in 3rd or 4th gear from low RPM up a steep incline. | Note: Listen and feel for hesitation, surging, or black smoke from the exhaust, which points to a clogged EGR valve, split turbo intercooler hoses, or a heavily soot-laden Diesel Particulate Filter (DPF).
Once the car is fully warm, perform multiple stop-and-go maneuvers and manual downshifts. | Note: If equipped with the Aisin AM6 automatic transmission, look for harsh clunks or shift flares when downshifting from 3rd to 2nd gear. This indicates worn valve body solenoids, a common issue on these models.
Drive over speed bumps or rough New Zealand chip-seal roads at moderate speed. | Note: Listen for knocking or rattling from the front end. The 1st Gen 308 is notorious for wearing out front sway bar end links and lower control arm bushings prematurely.
Cycle the climate control system through all zones, vents, and temperature extremes. | Note: Ensure air flows correctly to both driver and passenger sides. The heater blend door gears are made of fragile plastic and often snap, requiring a highly labor-intensive dashboard removal to fix.
Routine engine oil and filter change using strictly low-SAPS (ACEA C2/C3) synthetic oil to protect the DPF. Rotate tyres and inspect front brake pads for wear.
Replace the diesel fuel filter to protect the sensitive high-pressure common-rail injectors. Inspect the auxiliary drive belt, flush the brake fluid, and check the cabin pollen filter.
Critical milestone. Replace the timing belt, tensioners, and water pump (highly recommended every 100,000km or 7 years). Check and top up the Eolys DPF additive fluid, and service the automatic transmission fluid.
Verify the use of PSA-approved Total Quartz Ineo ECS 5W-30 (or equivalent Low-SAPS oil) to prevent expensive DPF blockages.
Clear the windscreen plenum chamber drains periodically to prevent rainwater from backing up into the cabin and damaging the BSI (Body Control Module) electronics.
Check the Eolys (DPF additive) bag/tank fluid level under the rear chassis; running dry will trigger a permanent antipollution fault code.
Inspect the dual-mass flywheel (DMF) on manual transmission variants for excessive vibration or noise during clutch engagement.
Clean the EGR valve and intake manifold annually of heavy carbon deposits to maintain optimal fuel efficiency and throttle response.
Estimated repair costs if issues arise
Preventative maintenance required to prevent catastrophic engine failure. Access is tight, requiring specialist tools.
Required if the transmission exhibits severe slipping or harsh clunking when warm.
Needed if short city trips have permanently blocked the soot filter beyond passive or active regeneration limits.
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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