The 2009 Mercedes-Benz S600 is a masterpiece of German engineering, powered by a robust 5.5L 12-cylinder biturbo engine (code 275.95 Y). Owning and maintaining this luxury sedan requires a commitment to high-quality fluids that match the vehicle’s exacting tolerances. The S600’s dual-turbocharged V12 places significant thermal and mechanical stress on its internal components, making standard mineral-based lubricants insufficient for optimal performance. To preserve the longevity of this sophisticated powertrain and its associated systems, owners should utilize AMSOIL synthetic lubricants specifically formulated for European vehicles.
Ensuring the correct viscosity and additive packages is critical for this vehicle. Using the wrong oil grade can lead to increased wear, reduced fuel economy, and potential damage to the turbochargers. The S600’s massive oil capacity and complex cooling system demand fluids that offer superior shear stability and thermal resistance. Whether you are driving in extreme heat, freezing cold, or engaging in spirited driving on the Autobahn, a premium synthetic motor oil provides a durable protective film that reduces friction and helps manage the intense heat generated by the 12-cylinder engine.
Recommended AMSOIL Products
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – A specialized formula designed for the high-temperature demands of European gasoline, diesel, and hybrid engines, featuring a precise blend of synthetic base oils and premium additives for superior protection.
- AMSOIL 0W-40 FS 100% Synthetic European Motor Oil – An excellent alternative viscosity for this vehicle that offers rapid flow during cold starts while maintaining a robust lubricating film at operating temperatures, ensuring protection in all weather conditions.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Specifically engineered to withstand the rigors of heavy towing, elevated temperatures, and challenging terrain, this fluid remains fluid in sub-zero temperatures to provide reserve protection during heavy use.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – A high-performance fluid that protects against wear and helps maintain the smooth operation of the 5-speed 722.6 transmission, designed to meet or exceed original equipment manufacturer requirements.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that protects all cooling system metals, gaskets, and hoses for up to 150,000 miles or 5 years, compatible with all other antifreeze colors.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated coolant option that offers protection up to 150,000 miles (passenger cars) or 8 years in heavy-duty applications, greatly surpassing standards for metallic corrosion and erosion.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Designed to meet the strict requirements of Mercedes-Benz (MB Sheet 331.0), this fluid provides excellent ABS and traction-control responsiveness with stable viscosity over a wide temperature range.
- AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid – Helps seals remain soft to prevent leaks, resists heat for long fluid life, and provides strong anti-wear protection for quiet operation in steering systems.
Maintaining the engine of the S600 involves careful attention to capacity and replacement procedures. The engine oil capacity is substantial, requiring 9.5 quarts including the filter. It is important to note that on models equipped with an oil cooler, additional oil may be necessary if the cooler is drained during service. After refilling the crankcase, owners should allow approximately 5 minutes to elapse after turning the engine off before checking the oil level to ensure an accurate reading. The oil drain plug should be torqued to 22 ft/lbs to ensure a proper seal without damaging the threads.
The cooling system for this powerful vehicle is equally complex, featuring a low-temperature subsystem that holds 2.7 quarts and a main system with a capacity of 14.7 quarts. Proper coolant management is vital to prevent overheating, which can occur rapidly in a biturbo engine under load. Using a high-quality AMSOIL Antifreeze & Coolant ensures that the delicate aluminum components of the cooling system are protected from corrosion and galvanic action. The recommended AMSOIL coolants are phosphate-, nitrate-, and silicate-free, making them safe for the various metals and elastomers used in the S600’s cooling infrastructure.
Powering the 2009 S600 is the iconic M275 5.5-liter V12 twin-turbo engine, one of the most powerful non-hybrid powertrains available in the luxury sedan segment at the time. This engine produces significant horsepower and torque, delivering power with a smoothness that belies its massive displacement. The S-Class, often regarded as the flagship of the Mercedes-Benz lineup, represents the pinnacle of automotive luxury, safety, and technology. The S600, in particular, appeals to enthusiasts who desire a V12 engine but also require the comfort and refinement of a daily driver.
The vehicle’s platform, the W220 (and its successors in the S-Class lineage), was known for its advanced engineering and build quality. The S600 features a sophisticated suspension system that isolates occupants from road imperfections while maintaining precise handling characteristics. Owners of the S600 often cite the effortless acceleration and the distinctive, refined sound of the V12 engine as primary reasons for their loyalty to the model. While the car requires regular maintenance to keep its complex systems running smoothly, the rewards of ownership include a driving experience that combines luxury with high-performance capability. The reputation of the S-Class as a secure, quiet, and technologically advanced sedan makes it a favorite among those who value a commanding road presence without sacrificing comfort.
Transmission service is another critical aspect of ownership for the S600. The vehicle utilizes the 5-speed 722.6 automatic transmission, which requires a total fill of 8.1 quarts for a complete flush. This transmission handles the massive torque output of the 12-cylinder engine, making fluid integrity paramount. Using a synthetic transmission fluid designed for high-temperature stability and wear protection helps extend the service life of the transmission components. AMSOIL’s transmission fluids are formulated to resist thermal breakdown, ensuring smooth shifts and reduced friction even during aggressive driving or heavy towing.
For the brake system, the S600 requires a fluid that meets strict Mercedes-Benz specifications, specifically MB Sheet 331.0. This translates to a DOT 4 plus requirement. AMSOIL’s 100% synthetic AMSOIL Brake Fluid is an ideal match, offering a stable viscosity that maintains consistent pedal feel in both freezing and hot conditions. This stability is crucial for the vehicle’s electronic stability and traction control systems. Additionally, the power steering system benefits from a dedicated synthetic power steering fluid that prevents seal hardening, a common issue in older luxury vehicles, thereby preventing costly leaks and ensuring quiet, smooth steering operation.
For vehicle owners who store their S600 during seasonal changes or extended periods of non-use, preserving the engine’s internal components is essential to prevent rust and varnish buildup. AMSOIL offers a range of storage additives designed for this purpose. The AMSOIL Gasoline Stabilizer helps keep fuel fresh for up to 12 months, protecting against ethanol corrosion and gum buildup that can clog fuel injectors. For the engine itself, the AMSOIL Engine Fogging Oil provides a protective coating on internal components, guarding against rust during long-term storage. These products are particularly useful for maintaining the pristine condition of a luxury vehicle that is driven occasionally or kept for show.
Maintaining the fuel system’s cleanliness also plays a role in the overall performance and efficiency of the S600. The combustion characteristics of a V12 engine are sensitive to carbon deposits, which can accumulate on fuel injectors and intake valves over time, leading to reduced power and increased fuel consumption. AMSOIL’s P.i.® AMSOIL P.i. Performance Improver gasoline additive is designed to restore fuel injectors to nearly 100% flow rate, helping to regain lost horsepower and improve fuel economy. By keeping the fuel system clean, the engine can operate at peak efficiency, ensuring that the driver gets the most out of their premium fuel.
When it comes to exterior maintenance, protecting the vehicle’s finish is as important as mechanical care. The S600’s paintwork is a significant part of its value and appearance. Products like the High-Foam Car Shampoo offer a cleaning solution that effectively breaks down dirt and road grime without stripping away protective waxes or coatings. For a quicker clean that still provides protection, the Miracle Wash Waterless Wash and Wax Spray can be used to clean and shine the vehicle with just a spray and a wipe. For added protection against the elements, the Exterior Ceramic Spray creates a durable, water-shedding layer that guards against UV rays and environmental contaminants.
In conclusion, the 2009 Mercedes-Benz S600 is a vehicle that deserves the very best in lubrication and care. By following the recommended fluid specifications and utilizing high-quality synthetic products, owners can ensure that their S600 continues to deliver the smooth, powerful, and luxurious driving experience it was designed to provide. From the engine oil to the coolant, transmission fluid to brake fluid, every fluid change is an opportunity to protect this engineering marvel and extend its service life. With proper maintenance and the use of AMSOIL’s advanced synthetic lubricants, the S600 can remain a reliable and impressive machine for years to come.