2018 — 2023
4.0L M177 V8 Bi-Turbo - AMG GLC 63 S Coupe 4MATIC+
Petrol
Check the air suspension by cycling through the drive modes while stationary. | Observation: Listen for any audible hissing or uneven leveling of the vehicle, as the complex Airmatic system can be sensitive to age.
Execute several low-speed, full-lock turns in a parking lot. | Observation: Be mindful of any 'crabbing' or skipping sensation from the front tires, which is a known characteristic of the aggressive geometry on these performance models.
Monitor the digital temperature gauges during a spirited drive. | Observation: The M177 engine runs hot; ensure the cooling fans engage smoothly and the needle remains steady, as cooling system efficiency is paramount for this unit.
Test the transmission during light throttle application at low speeds. | Observation: The MCT multi-clutch transmission can feel slightly firm; ensure gear changes are crisp rather than erratic, as this helps gauge the health of the clutch packs.
Usually involves a major service, including spark plug replacement and a comprehensive transmission fluid flush.
A common point to assess the condition of the engine mounts, as the high torque of the M177 can accelerate wear over time.
Consider a full inspection of the auxiliary belt system and potential preventative maintenance on the high-pressure fuel pump seals.
Prioritize high-quality engine oil changes every 10,000km or annually to keep the twin-turbo system healthy.
Inspect the brake rotors and pads regularly, as the performance setup on the 63 S carries a significant cost for replacement.
Keep the panoramic sunroof tracks clean and lubricated to prevent the motor from straining.
Check the tire pressure sensors and tread wear patterns; consistent alignment is key to handling these performance tires.
Ensure all software updates for the COMAND infotainment system are documented by a Mercedes specialist.
Estimated repair costs if issues arise
If this component needs attention in the future, the estimated cost in NZ is reflective of the complex pneumatic technology involved. It is wise to consider this a long-term wear item.
Depending on the car's history and your driving style, you might eventually need to budget for a complete brake overhaul, which is substantial due to the high-performance material specifications.
To maintain the vehicle's characteristic smoothness, you may need to budget for mount replacement later on. This involves labor-intensive access to the engine bay.
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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