2001 — 2005
1.6L I4 (TU5JP4)
Petrol
Drive the car until fully warm, testing upshifts and downshifts under load, especially from 1st to 2nd gear. | Note: The AL4 4-speed automatic transmission is highly prone to pressure regulation solenoid failure. Watch for harsh shifts, slipping, or the 'Gearbox Fault' warning on the multi-function display.
Activate the indicators, headlights, and wipers repeatedly, ensuring they cancel correctly and don't flicker. | Note: The COM2000 steering column switch unit is notoriously fragile. Faults here can lead to random indicator self-cancelling, headlights turning off unexpectedly, or airbag warning lights.
Park the vehicle after a warm run, leave it idling, and inspect under the engine bay for any sweet-smelling pink/green fluid or leaks near the right side of the block. | Note: The TU5JP4 engine utilizes a plastic thermostat housing that degrades, cracks, and warps over time, leading to coolant loss and subsequent head gasket failure.
Operate every electrical component simultaneously—power windows, central locking, radio, and air conditioning—while checking for warning lights on the dash. | Note: The BSI (Built-in Systems Interface) multiplex wiring system is highly sensitive to voltage drops and water ingress, which can trigger erratic electrical gremlins across the vehicle.
Routine minor service including engine oil (5W-40 synthetic) and filter change. Inspect cabin pollen filter and check front brake pad thickness.
Intermediate service. Replace spark plugs, air filter, and cabin filter. Flush brake fluid and inspect front suspension control arm bushes and sway bar end links for wear.
Major critical service. Replace the timing belt, tensioners, and water pump. Perform a coolant flush, check the condition of the drive belts, and service the AL4 transmission fluid if equipped.
Timing Belt & Water Pump: Replace every 80,000km - 100,000km or 5 years (whichever comes first) to avoid catastrophic valve-to-piston damage on the TU5JP4 engine.
Coolant Housing Inspection: Inspect the plastic thermostat housing and radiator hoses for hairline cracks or white crusty residue at every service.
AL4 Transmission Fluid Changes: Despite Peugeot's 'sealed-for-life' claim, drain and refill the automatic transmission fluid every 40,000km to prolong solenoid life.
Battery Voltage Integrity: Replace the battery at the first sign of weakness; low voltage causes false sensor readings and BSI computer glitches.
Rear Brake Disc Bearings: When replacing rear brake discs, ensure you purchase the units with integrated wheel bearings and ABS magnetic rings as per OEM specification.
Estimated repair costs if issues arise
Preventative maintenance required every 5 years. Best performed by a European vehicle specialist in NZ who has the specific Peugeot flywheel locking tools.
Required if the transmission goes into third-gear 'limp home' mode. Includes replacing the pressure control solenoids and refreshing the fluid.
Cannot be easily repaired; requires a complete replacement unit. Sourcing an OEM part is recommended as cheap aftermarket units often fail quickly.
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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