2005 — 2007
1.6L I4 (N45B16)
Petrol
Cold Start Idle Check | Note: Listen for rough idling or rhythmic tapping from the N45 engine; the N45 is notorious for timing chain tensioner issues and guide failure.
Cooling System Pressure Test | Note: Check for signs of coolant leaks or 'mayonnaise' under the oil cap, as these engines are prone to plastic cooling component degradation.
VANOS Solenoid Inspection | Note: Ensure there is no hesitation or loss of power when accelerating in the mid-RPM range, indicating VANOS fouling.
DSC and Warning Light Scan | Note: Use an OBDII reader to check for hidden error codes; the E90 steering angle sensor and ABS module are common failure points.
Major service point: Timing chain tensioner replacement, water pump, and suspension bushing overhaul.
Likely time for auxiliary drive belt, tensioners, and plastic cooling flanges replacement to prevent unexpected breakdowns.
Expect suspension control arms, shock absorbers, and engine mounts to be worn out and require full renewal for NZ WOF.
Full synthetic oil changes every 10,000km (do not follow the long-life intervals).
Replace plastic cooling flanges and hoses that have become brittle.
Regular cleaning of the Mass Air Flow (MAF) sensor to prevent erratic fueling.
Inspection of the valve cover gasket seal for oil ingress into the spark plug wells.
Brake fluid flush every 24 months to prevent ABS/DSC module corrosion.
Estimated repair costs if issues arise
Essential preventative maintenance to avoid catastrophic engine failure if chain stretch is detected.
Replace radiator, hoses, and thermostat as a package when leaks appear.
Control arm bushes usually wear out by 100k; expect handling 'slop' and WOF failure if ignored.
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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