2001 — 2005
2.0L I4 (EW10J4)
Petrol
Drive the car from cold, allowing it to shift through all gears up to highway speeds, and test manual shift mode. | Note: The AL4 4-speed automatic transmission is notorious for solenoid failures. Jerking when cold or dropping into limp mode (3rd gear lock) is a major red flag.
Test indicators, headlights, high beams, and wipers multiple times. Ensure the indicator self-cancels correctly when straightening the wheel. | Note: The COM2000 steering column switch unit frequently fails, causing headlights to turn on/off randomly or indicators to flop. It is expensive to replace as a single unit.
Inspect the engine bay with a torch, specifically looking at the rear of the engine block and around the spark plug wells. Smell for burning oil after the test drive. | Note: The EW10J4 plastic valve covers warp over time, leading to oil leaking onto the hot exhaust manifold or into spark plug wells, causing misfires.
Drive over speed bumps and uneven surfaces at low speed with the cabin fan and radio off. Listen for knocking or rattling from the front end. | Note: Front sway bar links and lower control arm bushes wear out prematurely on New Zealand's undulating chip-seal roads, resulting in immediate WoF failures.
Minor service including synthetic engine oil (5W-40) and filter change. Inspect cabin filter and check brake pad wear, as the 307 is heavy on front brakes.
Major service. Replace spark plugs, air filter, and cabin filter. Flush brake fluid and coolant. Inspect the AL4 transmission fluid condition if it is an automatic model.
Critical timing belt and water pump replacement interval for the EW10J4 engine. Also check front suspension control arm bushes and refresh the power steering fluid.
Timing Belt & Water Pump: Ensure replacement every 80,000km or 4 years to prevent catastrophic EW10J4 engine valve damage.
AL4 Auto Transmission Fluid: Flush and change the oil every 40,000km using Peugeot-approved LT 71141 fluid to extend hydraulic solenoid life.
Spark Plug Wells: Periodically check for oil pooling inside the spark plug wells due to leaky plastic rocker cover gaskets.
Cooling System Bleeding: Ensure the cooling system is properly bled using the specific bleed valves when replacing coolant to avoid airlocks and overheating.
Cabin Air Filter: Replace annually to prevent musty smells and protect the air conditioning blower motor from moisture build-up.
Estimated repair costs if issues arise
Non-negotiable preventative maintenance. If there is no documented proof of a recent change, budget for this immediately upon purchase.
Common fix for 'Gearbox Fault' screen warnings and harsh shifting. Requires replacement of pressure solenoids and fresh fluid.
Requires replacing the entire steering column switch unit. Best sourced as an OEM part to ensure steering angle sensor compatibility for the ESP system.
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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