2018 — 2022
4.0L M177 V8 Bi-Turbo - AMG GLC 63 S 4MATIC+
Petrol
During low-speed maneuvers, turn the steering wheel to full lock in both directions; listen for any 'clunking' or 'scrubbing' sounds which are common to note in the GLC 63's performance suspension geometry.
While accelerating steadily in Comfort mode, pay attention to the gear changes; if you notice any jerky shifts, it is worth asking to see if the transmission software has been updated as part of routine maintenance.
Before starting the engine, check the cooling reservoir levels and look for any residue; in V8 Bi-Turbo configurations, it is sensible to monitor for any minor weeping around cooling hoses over time.
Inspect the inside of the wheels for any signs of brake pad dust or uneven wear; the performance braking system is substantial, so checking for rotor lips or bedding-in concerns is a wise pre-purchase step.
Usually marks the first significant major service, including spark plugs and transmission fluid.
Often the time to inspect brake rotors and pads thoroughly for performance wear.
Consider having the air suspension components and differential oils inspected for longevity.
Ensure the digital service history is complete and verify that every service was performed by an authorized Mercedes-Benz agent or a specialist.
Check that the multi-stage cooling system is operating as expected during a longer drive.
Verify the tyre tread wear is even across the axle; performance SUVs can be sensitive to alignment settings.
Confirm the panoramic sunroof (if fitted) operates smoothly without binding, as the seals appreciate occasional lubrication.
Check that all electronic driver assistance systems engage correctly during your test drive.
Estimated repair costs if issues arise
Because the AMG GLC 63 S is a high-performance vehicle, the brakes are designed for stopping power rather than longevity. If this component needs attention in the future, it involves replacing high-spec pads and potentially rotors, which is a standard part of owning an AMG model.
The air suspension provides a fantastic ride, but as the car reaches higher mileage, it is common to consider that these components may eventually require refurbishment. Depending on the car's history, you might eventually need to budget for a professional assessment of the air bellows.
The M177 V8 produces significant torque, which naturally places stress on the engine mounts over time. If you notice increased vibration at idle in the future, it is worth having these inspected as a piece of future budget planning.
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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