The 2021 Mercedes-Benz C63 AMG S represents the pinnacle of German engineering, boasting a hand-built 4.0-liter twin-turbo V8 engine (code 177.980.0) that delivers immense horsepower and aggressive performance. To maintain this high-revving powerplant in peak condition, owners must utilize lubricants specifically formulated to withstand the extreme thermal and mechanical stresses inherent to AMG vehicles. Standard petroleum-based oils often break down under the sustained high temperatures of the turbochargers and the tight tolerances of the engine’s internal components. Switching to a premium synthetic lubrication regimen ensures consistent viscosity, superior wear protection, and extended service intervals, keeping your sedan running smoothly whether on the Autobahn or the local highway. The synthetic motor oil, grease for heavy components, and High-Foam Car Shampoo for exterior care are part of a complete regimen to keep your Mercedes-Benz C63 AMG S running smoothly for the long haul.
Recommended AMSOIL Products
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – This oil is specifically designed for the unique demands of modern gasoline and diesel European vehicles, featuring a precise blend of synthetic base oils and premium additives to handle the high heat of the C63’s twin-turbos.
- AMSOIL 0W-40 FS 100% Synthetic European Motor Oil – An excellent alternative viscosity that offers superior cold-start protection while maintaining a robust oil film at operating temperatures, ensuring the engine is lubricated instantly upon startup.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that protects the cooling system metals, gaskets, and hoses, capable of handling the intense thermal loads generated by the C63’s performance engine.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated solution that greatly surpasses standards for metallic corrosion and erosion, offering up to 150,000 miles of protection for vehicles with strict cooling requirements.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Designed for excellent ABS and traction-control responsiveness, this fluid provides a stable viscosity over a wide temperature range, ensuring consistent pedal feel during aggressive driving.
The engine in your C63 AMG S requires a substantial amount of oil to function correctly. With a capacity of 9.5 quarts including the filter, using high-quality synthetic oil is crucial to ensure every component is adequately coated. The turbocharger, in particular, relies on a constant flow of oil for cooling and lubrication; without the right fluid, the bearings can suffer premature wear. The recommended AMSOIL European motor oils are engineered to resist thermal breakdown and oxidation, which are common failure points in turbocharged engines that frequently operate at high RPMs. By choosing the correct viscosity, you help maintain the engine’s efficiency and longevity, reducing the risk of sludge buildup in the tight passages of the 4.0L V8. For other maintenance needs, the Engine Degreaser can be used to clean engine surfaces before applying a protective Heavy-Duty Metal Protector.
Beyond the engine, the cooling system of the C63 AMG S is a critical component of its overall performance. The engine produces significant heat, and the cooling system must manage this effectively to prevent overheating. AMSOIL Passenger Car & Light Truck Antifreeze & Coolant offers a pre-mixed 50/50 formulation that is phosphate-, nitrate-, nitrite-, silicate-, borate-, and amine-free, making it safe for all cooling system metals. This compatibility ensures that the delicate aluminum components, common in modern Mercedes engines, are protected from corrosion without damaging the rubber hoses or gaskets. The capacity for the standard Long-Term Coolant Change (LTCC) is 4.9 quarts, while the Heavy-Duty Coolant Change (HTCC) requires 11.7 quarts. Proper cooling system maintenance is essential to keep the engine operating within its optimal temperature range, preserving horsepower and preventing costly repairs.
The braking system on a vehicle like the C63 AMG S is designed for high-performance driving, which places extreme demands on the brake fluid. Under heavy braking, brake fluid temperatures can rise dramatically, leading to a phenomenon known as “brake fade” where the fluid boils and compresses, resulting in a spongy pedal and reduced stopping power. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is formulated to maintain a stable viscosity over a wide temperature range, ensuring excellent ABS and traction-control responsiveness. This fluid helps prevent moisture absorption, which is a primary cause of corrosion in brake lines and calipers. By using a synthetic brake fluid, you protect the integrity of the braking system and ensure that the car responds immediately to the driver’s inputs, a key requirement for enjoying the performance capabilities of the C63. For cleaning brake parts, the Brake and Parts Cleaner quickly removes oil, grease, and brake fluid without major disassembly.
About the Vehicle
The 2021 Mercedes-Benz C63 AMG S is the flagship sedan in the C-Class lineup, representing the ultimate expression of the brand’s performance heritage. Built on the W206 platform, this iteration is powered by the formidable M177 4.0-liter V8 biturbo engine, a hand-assembled powerplant known for its rapid power delivery and distinctive exhaust note. The “S” designation denotes the top-tier model in the range, offering enhanced suspension tuning, more aggressive aerodynamic styling, and interior appointments that blend luxury with sportiness. This vehicle occupies a unique market position as a four-door sedan that can genuinely rival dedicated sports cars in terms of acceleration and handling, making it a favorite among driving enthusiasts who also require daily practicality.
Owners of the C63 AMG S appreciate its ability to deliver over 500 horsepower from a compact engine footprint, providing an exhilarating driving experience that is available at the touch of a pedal. The twin-turbo setup eliminates lag, ensuring that power is accessible instantly regardless of engine speed. The interior is crafted with high-quality materials, featuring sport seats and advanced infotainment systems that cater to both comfort and connectivity. Despite its sporty nature, the C63 remains a practical choice for those who need to transport passengers or cargo, thanks to its spacious trunk and comfortable ride quality when set to normal modes. The vehicle’s reputation is built on a legacy of AMG engineering, combining raw power with sophisticated technology.
While the C63 AMG S is a robust machine, high-performance vehicles do have specific areas of concern that owners should be aware of. One common issue found in early models of this engine family is excessive oil consumption, which can occur if the internal seals harden over time or if the engine is operated under extreme conditions without adequate lubrication. Using a high-performance synthetic oil like AMSOIL FS European Motor Oil can help maintain the elasticity of seals and reduce the rate of oil consumption, ensuring the engine maintains proper oil levels between changes.
Another potential area of concern is the buildup of carbon deposits on the intake valves and piston crowns, a frequent occurrence in direct injection gasoline engines, especially those subjected to spirited driving. Carbon buildup can lead to rough idling, reduced fuel efficiency, and even pre-ignition knock. Incorporating AMSOIL P.i.® Performance Improver Gasoline Additive can help clean these injectors and control pre-ignition knock, restoring lost horsepower and improving overall engine smoothness. To protect the fuel system and upper cylinders, the AMSOIL Upper Cylinder Lubricant Corrosion Inhibitor provides essential lubrication. During storage, the AMSOIL Gasoline Stabilizer keeps fuel fresh for up to 12 months, and the AMSOIL Engine Fogging Oil protects internal engine components from rust.
Additionally, the turbocharger systems in these engines generate immense heat, which can accelerate the degradation of the oil over time. Without proper thermal stability, the oil can form sludge and varnish that restricts oil flow to the turbo bearings, leading to premature failure. The advanced oxidation resistance of AMSOIL synthetic oils prevents this buildup, ensuring the turbocharger receives clean, flowing oil even after extended use or during hard track days.
Finally, owners should be mindful of brake system maintenance, as the high-performance calipers and rotors are subjected to significant thermal cycling. Moisture absorption in the brake fluid can lead to corrosion and reduced boiling points, which is dangerous when driving at the limits of the vehicle. Regularly flushing the braking system with a high-temperature resistant synthetic brake fluid helps maintain peak performance and prevents the spongy pedal feel that can occur with degraded fluid. By addressing these specific needs with the right lubricants, C63 AMG S owners can maximize the lifespan and performance of their investment.
To maintain the vehicle’s appearance, use the AMSOIL Miracle Wash for a waterless wash and wax. For the interior, the AMSOIL Interior Detailer – Light Lemon or the Scent Free version offers multi-surface cleaning and UV protection. The AMSOIL Glass Cleaner effectively cuts through grease and grime without leaving streaks. For exterior protection, the AMSOIL Exterior Ceramic Spray sheds water rapidly and protects against UV rays. For heavy-duty cleaning tasks, the AMSOIL Heavy-Duty Degreaser dissolves oil and grime, while the AMSOIL Silicone Spray provides a dry lubricating film that locks out moisture. For metal surfaces, the AMSOIL MP Metal Protector cuts through rust and frees frozen components. For those who drive in muddy conditions, the AMSOIL Mudslinger® provides a protective layer against accumulation. To clean carburetor and induction systems, the AMSOIL Power Foam® removes deposits and varnish. For general lubrication, the AMSOIL Synthetic Multi-Purpose Grease resists thermal degradation and offers low-temperature pumpability.