2005 — 2012
4.0L (VQ40DE) - V6 Petrol ST-X
Petrol
Check this by looking for signs of coolant contamination in the transmission fluid, as early D40 automatic models can occasionally experience issues with the radiator-transmission heat exchanger.
While driving at low speeds, listen closely for a metallic 'rattle' coming from the engine bay, which can sometimes indicate that the timing chain tensioners are reaching the end of their service life.
Perform a full-lock turn in both directions on a quiet street to listen for clicking or binding sounds, which may suggest the CV joints or front wheel bearings are nearing a point of needing a check-up.
Inspect the chassis rails behind the front wheels for any signs of heavy surface rust or paint bubbling, as this is an area where moisture and debris can collect over time.
Usually a prime time to refresh the suspension bushings and verify the cooling system health.
Consider having a specialist assess the timing chain tensioners and secondary drive belts.
A common interval for checking the integrity of the fuel pump assembly and oxygen sensors for continued engine efficiency.
Regularly lubricate the tail shaft grease points to prevent vibrations and premature wear on the driveline.
Keep the radiator fins clean and ensure the cooling system is flushed every two years to manage operating temperatures.
Stick to a 10,000km oil change interval using a high-quality synthetic oil to keep that VQ40 engine running smoothly.
Ensure the transmission fluid is changed regularly, especially if you do any towing or heavy off-road driving.
Check the air intake trunking for any cracks or loose connections to ensure the engine is getting clean, metered air.
Estimated repair costs if issues arise
If this component needs attention in the future, the estimated cost in NZ is higher due to the labour-intensive nature of accessing the timing cover. It's a key job to maintain the engine's longevity.
Depending on the car's history, you might eventually need to budget for new shocks and bushings, especially if the vehicle has been used for towing, to restore that comfortable ride quality.
To avoid the 'pink milkshake' transmission issue mentioned in the pitfalls, some owners prefer to proactively replace the radiator. It’s a great piece of mind investment.
Noticed something inaccurate or missing?Suggest an edit→
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