
2018 — 2024
4.0L V8 Bi-Turbo
Petrol
Evaluate the shifting smoothness in Comfort and Sport modes. | Description: Some owners have noted occasional hesitation in the 9G-TRONIC transmission; it is often worth confirming if the software has been updated to the latest revision.
Inspect the door seals and window surrounds for moisture ingress. | Description: Given our varied NZ climate, it is common to check for early signs of wind noise or seal degradation, as these frames can be sensitive to environmental exposure.
Listen for any audible ticking or rattling during a cold start. | Description: In high-performance 4.0L Bi-Turbo units, keeping a close ear on the valvetrain during the initial warm-up phase can provide useful insight into long-term engine health.
Check the interior trim and ambient lighting functionality thoroughly. | Description: With the extensive electronic integration in this generation, it is sensible to ensure all cabin functions and individual LED strips are operating consistently.
Usually marks the first major service interval; ensure all fluids and cabin filters have been addressed.
A common point to review the condition of the brake rotors and pads, which are substantial components on a vehicle of this mass.
Often considered a milestone for a comprehensive inspection of suspension bushings and engine mounts to maintain that signature G-Class ride quality.
Verify the service history confirms the use of high-performance synthetic oils meeting Mercedes-Benz specifications.
Inspect the condition and tread uniformity of the tyres, as these vehicles can be sensitive to alignment settings.
Ensure all software and ECU modules are running the most recent factory firmware.
Check the brake fluid moisture levels, as this is often overlooked during routine inspections.
Perform a visual inspection of the underside, specifically looking for any impact damage or debris buildup near the drivetrain components.
Estimated repair costs if issues arise
Due to the vehicle's weight and performance, budgeting for premium pads and rotors is a prudent long-term strategy.
Given the specialized sizing and speed ratings required, it is wise to set aside funds for a full set of quality tyres every 30,000 to 40,000 kilometres.
Setting aside a contingency fund for scheduled servicing at an authorized or specialist facility helps avoid surprises.
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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