2005 — 2008
2.0L I4 (EW10A)
Petrol
Drive over speed bumps or uneven NZ suburban road surfaces at around 30-40 km/h. | Note: Listen for heavy clunking or knocking from the front end. The 307's front suspension top mounts, sway bar links, and lower control arm bushings wear out quickly.
Accelerate up a moderate incline from a complete stop, letting the AL4 automatic gearbox shift from 1st to 2nd and then 3rd. | Note: Listen and feel for harsh thuds, slipping, or a sudden 'Gearbox Fault' warning on the screen. The pressure modulation solenoids in this gearbox are notoriously prone to failure.
Perform several hard accelerations on an open stretch of road up to 100 km/h, checking for engine flat spots or hesitation. | Note: Watch for the dreaded 'Depollution System Fault' on the dashboard. In the EW10A, this is frequently triggered by a faulty VVT solenoid, clogged EGR system, or coil pack issues.
Test every function on the steering column stalks, including indicators, headlights, high beams, wipers, and onboard computer toggles. | Note: If the indicator stalk feels floppy, self-cancels too early, or fails to engage, the entire COM2000 switch unit needs replacement, which is a costly integrated part.
Routine minor service including engine oil (strictly 5W-40 meeting PSA B71 2296 specs) and filter. Inspect cabin filter and check the hydraulic power steering pump lines for weeping.
Intermediate service. Replace spark plugs, air filter, and cabin filter. Inspect front and rear brake pads/rotors. It is highly recommended to perform a preventative partial fluid drain and fill on the AL4 automatic transmission.
Major service milestone. Complete timing belt, tensioners, and water pump replacement (critical interval for the EW10A is 4 years or 80,000–100,000 km to avoid engine destruction). Flush the cooling system and inspect the engine mounts.
Always use high-quality synthetic 5W-40 oil to prevent piston ring gumming and subsequent high oil consumption common to the EW10 series.
Ensure the main 12V battery is kept in peak health; low voltage triggers erratic multiplex (BSI) wiring glitches and false dashboard error codes.
Periodically clear the scuttle panel plastic drains below the windscreen to prevent rainwater from backing up and flooding the passenger footwell/fuse box.
Perform a partial transmission fluid drop-and-fill every 40,000 km, ignoring the factory 'sealed-for-life' claim to extend AL4 gearbox lifespan.
Check the condition of the ignition coil block and replace spark plugs strictly on time to prevent unburned fuel from ruining the catalytic converter.
Estimated repair costs if issues arise
Preventative maintenance required every 4-5 years or 100,000km. Failure results in bent valves and total engine failure.
Standard fix when the auto transmission goes into 3rd-gear limp mode with a 'Gearbox Fault' warning.
Required if indicators fail, lights turn off randomly, or the airbag warning light illuminates due to internal ribbon cable wear.
Noticed something inaccurate or missing?Suggest an edit→
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