2001 — 2004
2.2L I4 (EW12J4)
Petrol
Operate all windows, central locking, and check the center multi-function display (MFD) for pixel fading or complete failure when hot. | Note: Early multiplexed wiring (VAN/CAN bus) and the BSI unit are highly vulnerable to voltage drops and moisture, resulting in phantom electrical issues.
Accelerate up to highway speeds and feel for jerky gear shifts or slipping, particularly when downshifting from 3rd to 2nd in automatic models. | Note: The ZF 4HP20 transmission was sold as 'sealed for life', leading to fluid neglect, premature wear of the valve body, and eventual torque converter failure.
Listen carefully for a ticking or blowing noise from the engine bay under acceleration, especially when cold. | Note: The 2.2L EW12J4 engine is prone to cracking its cast-iron exhaust manifold, which can also melt nearby wiring if left unaddressed.
Turn the steering wheel lock-to-lock at a standstill and check for fluid leaks around the power steering pump and high-pressure lines. | Note: Power steering high-pressure hoses are known to leak fluid directly onto the alternator below, creating a serious fire hazard.
Routine oil and filter change using high-grade 5W-40 fully synthetic oil. Inspect front brake pads, as the heavy chassis of the 607 accelerates wear.
Comprehensive service: Replace spark plugs, air filter, and cabin pollen filter. Perform a preventive drain and fill of the automatic transmission fluid (ATF).
Replace the timing belt, tensioners, and water pump. Inspect the variable valve timing (VVT) solenoid and sprocket for wear, and refresh the engine coolant.
Check engine oil level fortnightly, as the EW12J4 engine is known to consume oil via hardened valve stem seals over time.
Ensure the main battery is maintained at optimal charge; low voltage is the primary cause of false warning lights and BSI glitches.
Keep the windscreen cowl drains clear of leaves to prevent rain water from backing up and flooding the passenger footwell where the BSI module is located.
Use only Peugeot-approved G33/PSA B71 5110 specification coolant to avoid corroding the internal alloy heating matrix.
Regularly clean the electronic throttle body to prevent rough idling and the infamous 'Anomalie Anti-Pollution' dashboard alert.
Estimated repair costs if issues arise
Crucial preventive maintenance required every 4 years or 100,000km. Failure results in catastrophic engine damage.
Required if water ingress or short circuits brick the vehicle's main computer. Requires specialised Peugeot Diagbox programming.
Common fix if the ZF gearbox begins to slip or shift harshly. Sourcing parts in New Zealand can require importing.
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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