The 2016 Mercedes-Benz CLS63 AMG S is a high-performance luxury coupe that demands the highest standards of lubrication to maintain its engine’s precision and longevity. Powered by the 5.5-liter V8 bi-turbo engine, this vehicle operates under extreme thermal and mechanical stress. Standard mineral oils often break down under the intense heat of the turbochargers and the high-revving nature of the AMG powertrain. To protect this investment, AMSOIL provides a complete range of synthetic lubricants designed to exceed original equipment specifications.
Recommended AMSOIL Products
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – A specialized formula for European vehicles, offering superior protection for the 2016 CLS63 AMG S with a 9-quart capacity requirement including the filter.
- AMSOIL 0W-40 FS 100% Synthetic European Motor Oil – An alternative viscosity option for all temperatures, engineered to provide rapid flow and extreme protection for this high-output turbo engine.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that protects the cooling system’s metals, gaskets, and hoses while filling the 11.4-quart capacity.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Ideal for the 722.971 transmission, this fluid withstands heavy loads and elevated temperatures while maintaining fluidity in sub-zero conditions.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Designed to meet MB Sheet 331.0 standards, providing stable viscosity and excellent responsiveness for the vehicle’s braking system.
Maintaining the correct viscosity and oil change intervals is critical for this specific engine code, 157.981 0 Turbo. The engine requires a total of 9 quarts of oil when the filter is replaced. It is vital to verify the oil level after the refill and adhere to the specific torque specifications for the oil drain plug: 15 ft/lbs for an M12 bolt, 22 ft/lbs for an M14 bolt, or 3 ft/lbs for a plastic plug. Using a full synthetic European formula ensures that the oil’s additive package is compatible with the tight tolerances and materials found in Mercedes-Benz engines, preventing sludge buildup and maintaining oil pressure during spirited driving.
Transmission and Cooling System Protection
The automatic transmission in this model is a high-tech 7-speed unit, designated by the 722.971 series. Whether the vehicle has the A89 code (Reduced-Friction) or not, the total fill capacity is 8.2 quarts. AMSOIL offers two primary transmission fluids for this application: the Signature Series and the OE Fuel-Efficient series. Both are formulated to protect against wear, heat, and sludge, ensuring smooth shifting and extending the life of the transmission components. The transmission fluid is designed to remain stable under the stress of high-speed driving and sudden acceleration typical of the CLS63 AMG S.
Cooling is another critical aspect of this high-performance vehicle. The 5.5L engine generates significant heat, necessitating a coolant with exceptional corrosion protection and heat transfer capabilities. AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a 50/50 pre-mix formulation that protects all cooling system metals, gaskets, and hoses. It is compatible with all other antifreeze colors and free of phosphates, nitrates, nitrites, silicates, borates, and amines. This formulation provides protection for up to 150,000 miles or 5 years, significantly reducing the frequency of flushes required compared to traditional green coolants. Alternatively, the AMSOIL Propylene Glycol Antifreeze and Engine Coolant offers a concentrated option for those needing extended protection intervals.
Brake Fluid and Maintenance Fluids
Safety and performance go hand in hand in a vehicle of this caliber. The braking system requires a fluid that can handle high temperatures without boiling, which can lead to pedal fade. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is recommended for the HBH application, meeting the strict requirements of MB Sheet 331.0. It offers a stable viscosity over a wide temperature range, ensuring precise brake control and excellent responsiveness for the ABS and traction control systems. Regular replacement of this fluid is essential to prevent moisture buildup, which can lead to internal corrosion and brake failure.
For those looking to optimize fuel economy and engine cleanliness, AMSOIL also offers gasoline additives. The AMSOIL P.i.® Performance Improver Gasoline Additive is a powerful treatment that helps restore horsepower and cleans GDI fuel injectors to 100% flow rate. This additive is particularly beneficial for keeping the direct injection system of the 5.5L engine free from carbon buildup, which can occur over time and affect performance. Additionally, the AMSOIL Upper Cylinder Lubricant Corrosion Inhibitor helps lubricate the fuel system and upper cylinders, working in tandem with the P.i. additive to maintain peak engine efficiency.
Vehicle Background and Driving Experience
The 2016 Mercedes-Benz CLS63 AMG S represents the pinnacle of the CLS-Class lineage, blending the elegance of a four-door coupe with the raw power of a performance machine. This model sits atop the AMG hierarchy, featuring a hand-crafted 5.5-liter V8 biturbo engine that produces massive torque and horsepower figures. The vehicle was engineered for drivers who refuse to compromise on either style or substance, offering a driving character that is both refined and aggressively potent.
As part of the W218 generation, the CLS63 AMG S benefits from a lightweight and rigid aluminum-intensive architecture, which contributes to its agile handling despite its size. The car’s design features a distinctive sloping roofline that flows seamlessly into the trunk, a hallmark of the CLS design language. Owners often appreciate the vehicle’s versatility, as it serves as a daily driver capable of transporting passengers in luxury while offering weekend thrills on winding roads or the track. The interior typically boasts high-quality materials, advanced technology, and supportive seating designed for long journeys and high-G corners alike.
The CLS63 AMG S is known for its distinctive exhaust note, a deep, resonant roar that signals its AMG pedigree. It is equipped with an advanced 4MATIC all-wheel-drive system that intelligently distributes power to the wheels for maximum traction and stability. This combination of power, technology, and design makes the CLS63 AMG S a unique position in the market, appealing to enthusiasts who need a practical vehicle without sacrificing performance. Proper maintenance, especially with premium synthetic lubricants from AMSOIL, ensures that this high-performance machine continues to deliver its signature driving dynamics for years to come.
Additional Care for the Vehicle
Beyond the critical engine and transmission fluids, other aspects of the vehicle require attention to maintain its pristine condition. For seasonal storage, AMSOIL Gasoline Stabilizer helps keep fuel fresh for up to 12 months, protecting against varnish and gum buildup. AMSOIL Engine Fogging Oil is an excellent choice for long-term storage, protecting internal components from rust. For those who enjoy the outdoor performance aspects of the vehicle, AMSOIL Silicone Spray provides a dry lubricating film that protects rubber components and locks out moisture without attracting dust.
Exterior care is equally important to preserve the vehicle’s finish. AMSOIL Miracle Wash is a waterless wash and wax spray that requires just a spray and a wipe, leaving a protective finish that repels dust and dirt. For a deeper clean, the AMSOIL High-Foam Car Shampoo is designed to break down contaminants gently without stripping existing coatings. The AMSOIL Exterior Ceramic Spray adds an extra layer of protection against UV rays and water, ensuring the vehicle looks its best. By using these specialized care products alongside the recommended lubricants, owners can ensure that their 2016 Mercedes-Benz CLS63 AMG S remains in top condition, both under the hood and on the outside.