2018 — 2020
4.0L V8 Bi-Turbo - 4MATIC (M177)
Petrol
Test drive task: Perform a cold start and listen for a brief rattle from the engine bay. | Note: While the M177 is a robust engine, early startup timing chain tensioner noise is occasionally reported, so it's wise to listen carefully during the first 30 seconds.
Check this by: Cycling through all Drive Select modes while stationary and during low-speed maneuvers. | Note: The 9-speed MCT transmission is complex; ensure the shifts between Comfort and Sport+ are smooth and without hesitation.
While driving: Find a smooth stretch of road and cycle the AirMatic suspension through its height adjustment settings. | Note: Check that the car levels out promptly and doesn't exhibit any warning lights or uneven sag after it has been parked for a few minutes.
Check this by: Inspecting the inner edges of the tires and checking for any signs of uneven wear. | Note: Given the weight and performance of the W222, these cars can be sensitive to wheel alignment, which helps in identifying if the suspension geometry needs a professional look.
Consider a full transmission fluid and filter service to maintain shift quality.
This is often when the air suspension components may begin to show their age depending on road conditions.
A common point to perform a comprehensive check of all cooling system hoses and auxiliary belt tensioners.
Confirm that the panoramic sunroof seals have been cleaned and lubricated to prevent sticking or noise.
Ensure the Service History reflects regular oil changes using Mercedes-Benz approved synthetic oils every 15,000km or annually.
Verify that the brake fluid has been flushed every two years to maintain the stopping performance of the AMG high-performance braking system.
Check the condition of the cabin air filters to ensure the climate control system operates at peak efficiency.
Keep an eye on tire pressures, as the high-performance rubber on the S63 requires specific pressures to ensure even wear.
Estimated repair costs if issues arise
If this component needs attention in the future, it involves replacing the air springs or dampers. Given the complexity of the S-Class suspension, it is helpful to set aside funds for this eventually.
Depending on the car's driving history, you might eventually need to budget for rotors and pads. These are specialized AMG items designed for high-speed stopping power.
In cars of this age, the hydraulic engine mounts can eventually soften, which might lead to increased vibration at idle. It is a common maintenance item for V8 Mercedes models.
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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