2016 — 2020
3.0L (Lambda II MPi V6) - Executive Trim
Petrol
Check this by shifting through all gears while stationary and then on a short test drive to ensure the 6-speed automatic transmission transitions smoothly without hesitation or harsh clunking.
While driving at varying speeds, listen closely for any knocking or metallic rattles from the front suspension, as the heavy front end can occasionally lead to premature wear on bushings or sway bar links.
Observe the infotainment screen and climate control panel during your test drive to ensure all touch-sensitive zones are responsive and that there is no flickering or pixelation on the display.
While the engine is at operating temperature, check the idle consistency; if it feels slightly uneven, it is helpful to verify if the throttle body is clean or if the spark plugs are approaching their service interval.
Consider replacing the spark plugs and checking ignition coils, as this is a common interval for the Lambda II engine to maintain peak efficiency.
A crucial point to ensure the transmission fluid has been refreshed to preserve the longevity of the smooth 6-speed gearbox.
Review the condition of the suspension struts and shock absorbers to ensure the Grandeur's signature comfortable ride quality remains intact.
Keep a consistent log of engine oil changes using high-quality synthetic oil, as the Lambda V6 engine performs best with regular clean lubrication.
Periodically inspect the coolant levels and the condition of the radiator hoses to prevent any cooling system surprises during long road trips.
Ensure the air conditioning system is serviced every few years to keep the cabin comfortable during the height of the New Zealand summer.
Clean the cabin air filter regularly to maintain good air quality for you and your passengers, especially if you live in dusty or coastal environments.
Regularly treat the leather upholstery with a quality conditioner to keep the interior looking fresh and preventing the material from becoming brittle over time.
Estimated repair costs if issues arise
While the Grandeur is robust, a proactive transmission service helps ensure the 6-speed box continues to shift seamlessly. Depending on the car's history, you might eventually need to budget for this to protect your long-term transmission health.
If you notice the ride feeling a bit less composed than when it was new, it is common to consider replacing front control arm bushings. If this component needs attention in the future, the estimated cost in NZ is usually manageable if addressed early.
Because the Lambda II is a V6, the rear bank of spark plugs is slightly more labour-intensive to access than a 4-cylinder engine. You might eventually need to budget for this job as part of your major engine tune-up.
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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