2019 — 2021
3.0L I6 Petrol - P400 MHEV
Petrol
While driving at low speeds, gently turn the steering wheel lock-to-lock. Listen for any clicking or creaking; suspension bushings in the L405 are known to wear over time, and hearing these sounds is a common cue that a refresh might be in your future.
Check the infotainment system by interacting with both the upper and lower screens for at least ten minutes. Ensure the software is snappy and not glitchy, as these units can occasionally experience connectivity drops that might require a software update or module reset.
During your highway portion of the drive, set the air suspension to different heights and ensure the vehicle levels out promptly. If you notice a warning light or a delay in height adjustment, it is worth consulting a specialist to inspect the compressor or air lines.
Before starting the engine, look for any signs of moisture or residue around the engine bay cooling pipes. The P400 Ingenium engines have complex cooling systems, and checking for dry, clean areas can give you peace of mind regarding the cooling integrity.
Usually marks the point where the air suspension compressor and rear control arm bushings should be inspected for signs of wear.
A common interval to check the integrity of the cooling system hoses and auxiliary belt tensioners.
Consider a full fluid flush for the transmission and differentials to maintain long-term smoothness of the drivetrain.
Keep a consistent service schedule every 12 months or 15,000km, using only recommended lubricants to keep the P400's turbocharger and MHEV system happy.
Check the tire pressure regularly; the L405 is a heavy vehicle and uneven tire wear can put unnecessary stress on the alignment and suspension components.
Listen to your local specialist regarding software updates; keeping the Land Rover modules current often improves both performance and infotainment stability.
Keep the sunroof rails and door seals clean and lubricated to prevent the notorious wind noise and minor ingress issues that can sometimes appear as the seals age.
Ensure the battery health is checked during your annual service, as the MHEV system relies heavily on a strong electrical charge to support its stop-start functionality.
Estimated repair costs if issues arise
In cars of this age, it is common to consider the longevity of the air bags. If one starts to leak, you might eventually need to budget for a replacement to ensure the ride height remains consistent.
If this component needs attention in the future, the estimated cost in NZ is reflective of the labour-intensive nature of accessing these pipes within the engine bay.
Depending on the car's history, you might eventually need to budget for a diagnostic deep-dive if the screens become unresponsive, which typically covers labour and dealer-level software configuration.
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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