2019 — 2026
3.0L I6 Turbo Mild-Hybrid (GLE450) - Balanced performance
Petrol
Test drive the 48V system | Description: During your test drive, ensure the EQ Boost mild-hybrid system transitions smoothly between engine-off coasting and restart; if there is a noticeable shudder or hesitation, it is worth discussing the vehicle's software update history with the service department.
Evaluate the Airmatic suspension | Description: While driving over varied road surfaces, toggle the suspension settings and listen for any abnormal hissing or leveling delays, as air struts are sophisticated components that can occasionally require attention in high-mileage examples.
Check the MBUX infotainment | Description: Spend time pairing your phone and using the 'Hey Mercedes' voice assistant to ensure the dual-screen interface is responsive, as complex electronics can occasionally glitch if software versions aren't current.
Inspect the panoramic sunroof | Description: Check this by operating the sunroof through its full range of motion; listen for rattles or binding, and look for any signs of water staining around the headliner, which is a common area to monitor in large-paned vehicles.
Routine major service, including transmission fluid flush and cabin filter replacement.
Consider a comprehensive inspection of suspension bushings and engine mounts.
Primary service interval for spark plugs and checking the integrity of the mild-hybrid electrical integration.
Ensure the cooling system is topped up with the correct coolant, as the GLE450 manages high thermal loads.
Follow the Mercedes-Benz Assyst Plus schedule strictly, as these engines thrive on the correct low-friction synthetic oil.
Keep the tyre pressures monitored, as the heavy weight of the V167 means uneven wear can happen quickly if alignment is off.
Regularly clean and treat the leather or MB-Tex upholstery to maintain the premium feel of the interior.
Perform annual 'over-the-air' software check-ins to ensure your MBUX system has the latest performance patches.
Estimated repair costs if issues arise
In cars of this age, it's common to consider the longevity of air bellows. Depending on the car's history, you might eventually need to budget for strut replacement if you notice the car sits unevenly after parking.
The mild-hybrid system is brilliant for efficiency, but if this component needs attention in the future, the estimated cost in NZ reflects the specialized nature of these electrified parts.
Given the GLE450's performance, high-quality braking components are essential. It is worth keeping a buffer for when your local service centre notes that pad thickness is reaching its limit.
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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