2007 — 2017
3.7L (VQ37VHR) - EX37/QX50 Sport
Petrol
Check this by shifting through gears manually: Test the 7-speed automatic transmission for any hesitation or 'hunting' during light acceleration, as these units occasionally develop solenoid issues.
Listen closely for any whining or groaning from the power steering pump, as this series can be sensitive to fluid degradation over time.
Ensure the VQ37VHR engine doesn't produce any prolonged 'rattle' at cold start, which can sometimes indicate that the timing chain tensioners are reaching the end of their service life.
Cycle through every infotainment and climate control function; the digital interfaces in these models can occasionally exhibit screen flickering or unresponsive buttons as they age.
Consider a full transmission fluid exchange and inspection of the drive belts.
Usually the time to evaluate the suspension bushings and potential replacement of engine mounts if vibrations are felt.
A significant point to monitor the water pump and cooling system components for signs of wear.
Regularly monitor your engine oil levels, as the VQ37 engines are known to be quite performant and appreciate a high-quality synthetic oil.
Keep an eye on the cabin air filter to ensure the climate control system remains efficient and the interior stays fresh.
Stick to the manufacturer's recommended coolant service intervals to protect the aluminum engine block from corrosion.
Inspect the tire tread depth and uniformity every 5,000km to ensure the sport-tuned suspension geometry is still holding up well.
Periodically check the undercarriage for any surface rust, especially if the vehicle has spent time in coastal New Zealand environments.
Estimated repair costs if issues arise
While the VQ37 is robust, the internal water pump can eventually require a major service. Depending on the car's history, you might eventually need to budget for a deep-engine service to address seals and gaskets.
To keep that signature Infiniti handling feel, you might consider refreshing control arms or bushings. If this component needs attention in the future, it is a standard maintenance task for a car of this complexity.
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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