2018 — 2024
G 500 - 4.0L Bi-Turbo V8
Petrol
Cycle through every drive mode and locking differential button while stationary and at low speed to ensure the hydraulic actuators engage without hesitation or error messages.
Navigate over uneven surfaces at low speed to listen for any clicking or clunking sounds from the front suspension bushings, which can be sensitive to the G-Class's heavy unsprung weight.
When parking, turn the steering wheel from lock to lock to feel for any stiffness or unusual noises from the electric power steering rack, ensuring the assist remains consistent throughout the rotation.
Operate the infotainment screen extensively to check for any flickering or software lag, as the complex MBUX system can sometimes show sensitivity to battery health fluctuations.
Consider a full transmission fluid and filter service to maintain smooth shifting in the 9G-TRONIC gearbox.
It is a good time to inspect the cooling system hoses and auxiliary water pump for any signs of weeping.
Deep inspection of the catalytic converters and exhaust system mounts is recommended to ensure the V8 remains within performance specs.
Check the service history for regular engine oil changes using the specific MB-approved 229.51/52 specification oils.
Verify that the brake pads and rotors are checked frequently, as the vehicle's weight puts significant demand on the braking system.
Inspect the tire sidewalls for any scrubbing or uneven wear patterns which may indicate alignment shifts from spirited driving.
Ensure the panoramic sunroof tracks are cleaned and lubricated to prevent binding, which is a common maintenance point for large glass roofs.
Monitor the engine bay for any oil seepage around the turbocharger intake pipes, keeping the area clean ensures longevity of the induction components.
Estimated repair costs if issues arise
While the W463A features a much more refined setup than its predecessors, the air struts can eventually show wear depending on road conditions. It is worth keeping a reserve for the eventual replacement of a strut or the compressor assembly.
The G 500 carries significant mass, meaning the brake pads and rotors are essentially consumables. You might eventually need to budget for a full set replacement when the sensors trigger.
The 4.0L Bi-Turbo engines are precise instruments. As a matter of future budget planning, keeping an eye on fuel trim data during services can prevent secondary issues with the high-pressure fuel system.
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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