2000 — 2005
2.5L (Delta V6) - Entry Level
Petrol
Check this by turning the steering wheel from lock to lock while idling; listen for any whining sounds from the power steering pump, as seals can harden on these models.
While driving on a bumpy road, listen for clunks from the front suspension; the control arm bushings are known to wear out over time due to the weight of the V6 engine.
During your test drive, perform a slow-speed gear transition from Park to Drive and Reverse to see if the shifts feel smooth or if there is a noticeable jolt, which can indicate transmission mount wear.
Check this by switching on the climate control to both extreme heat and cold; ensure the blend door actuators move freely, as these can become sticky or fail after two decades of service.
Usually marks a time to assess the cooling system, specifically checking for any signs of brittle radiator hoses or plastic neck fatigue.
A common point where secondary ignition components like coil packs may start to show their age if they haven't been refreshed previously.
Keep a close eye on the timing belt interval, as the Delta V6 is an interference engine and prefers a fresh belt every 100,000km.
Ensure the transmission fluid is a healthy cherry-red color, as these older automatics respond very well to regular fluid changes.
Periodically inspect the underside for surface corrosion, especially in coastal areas of New Zealand where salt air can affect the subframe mounts.
Keep the engine bay tidy and monitor for minor oil weeping from the valve cover gaskets, which is quite common for this engine layout.
Stay on top of routine coolant flushes to prevent scale buildup within the heater core and radiator.
Estimated repair costs if issues arise
Since this is an interference engine, it's wise to consider this a priority if there is no record of it being changed. It’s a labor-intensive job that involves stripping the front of the engine, so it's best to do the water pump at the same time.
If the ride starts to feel a bit loose or 'clunky,' you might eventually need to budget for replacing the front control arm bushings. It’s a great way to restore that smooth, executive car feel the Grandeur is known for.
Depending on the car's history, the rubber mounts that hold the engine and transmission can perish over time, causing excess vibration. Replacing these makes a world of difference to cabin comfort.
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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