The 2018 Mercedes-Benz Metris is a unique entry in the commercial vehicle market, offering a blend of passenger-car comfort with the utility of a workhorse van. Under the hood lies the 2.0L turbocharged inline-four engine (code 274.920.0), a sophisticated piece of engineering designed for efficiency and power. However, the turbocharger and the precise tolerances of German automotive engineering demand lubricants that go beyond the minimum requirements of standard mineral oils. Using the correct synthetic fluids is not just about meeting a maintenance schedule; it is about ensuring the engine handles the heat generated by forced induction, the transmission navigates the stop-and-go urban environments typical for this van, and the cooling system maintains stability under heavy payloads.
Recommended AMSOIL Products
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – Specifically engineered for the unique demands of gasoline, diesel, and hybrid European vehicles, featuring a precise blend of synthetic base oils and premium additives. Ideal for the 2.0L turbo engine requiring 5W-40 viscosity.
- AMSOIL 0W-40 FS 100% Synthetic European Motor Oil – A robust option for all-temperature protection, designed to flow quickly in cold starts while maintaining film strength at operating temperatures, perfect for the Metris 2.0L engine.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands the rigors of heavy towing, elevated temperatures, and challenging terrain while remaining fluid in sub-zero conditions, protecting the 7-speed transmission.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Provides excellent wear protection and friction modulation for the Mercedes-Benz 722.9 transmission, ensuring smooth shifts.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – An ethylene glycol 50/50 pre-mix formulation that protects all cooling system metals, gaskets, and hoses while being phosphate-free and compatible with all coolant colors.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option that requires mixing, offering protection up to 150,000 miles or 5 years in passenger cars and light trucks with superior corrosion and erosion resistance.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS and traction-control responsiveness with stable viscosity over a wide temperature range, meeting DOT 4 plus specifications.
Proper lubrication begins with the engine oil, the lifeblood of the 2018 Metris’s powerplant. The engine oil capacity for this vehicle is 8.1 quarts when the oil filter is included. It is critical to refill to this exact amount and check the oil level immediately after the refill to ensure optimal operation. The oil drain plug torque specification is 22 ft/lbs, a detail that underscores the precision required during service. For the engine, AMSOIL offers two primary European-specific grades that exceed the vehicle’s original equipment requirements. The AMSOIL 5W-40 FS is an excellent choice for operating temperatures above -25°C, providing the necessary thickness to protect the turbocharger bearings during high-load conditions. For colder climates or drivers seeking maximum flow protection during winter starts, the AMSOIL 0W-40 FS offers superior cold-start fluidity without sacrificing high-temperature film strength. Both oils are formulated with a unique additive package designed to clean up carbon deposits and protect against the high heat generated by the 2.0L turbo engine.
Translating engine power to the road relies heavily on the health of the automatic transmission. The 2018 Metris is equipped with a 7-speed 722.9 transmission. Depending on whether the vehicle has the A89 code (Reduced-Friction) or not, the fluid requirements remain similar in terms of protection, but the specific application context varies. The total fill capacity for the transmission is 9.5 quarts. Using a high-performance synthetic fluid is essential here, as the transmission fluid must withstand heavy loads, frequent shifting, and heat buildup. The AMSOIL Signature Series Fuel-Efficient Automatic Transmission Fluid is designed to remain fluid in sub-zero temperatures while providing reserve protection during heavy use and abuse, such as towing a trailer or carrying a full cargo load. Alternatively, the AMSOIL OE Fuel-Efficient Automatic Transmission Fluid offers robust wear protection specifically tuned for the friction characteristics of modern automatic transmissions, ensuring smooth and reliable shifts throughout the vehicle’s lifespan.
Maintenance extends beyond just the oil and transmission to include the cooling and braking systems, which are critical for safety and engine longevity. The cooling system requires a significant amount of fluid, with a total capacity of 11 quarts. Standard coolants can break down over time, leading to corrosion or seal failure. The AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a convenient 50/50 pre-mix that protects against rust and corrosion while being compatible with all coolant colors and free from phosphates, nitrites, and silicates. For those who prefer a concentrated formula, the AMSOIL Propylene Glycol Antifreeze provides protection for up to 150,000 miles or five years, offering a distinct advantage over traditional ethylene glycol coolants in terms of environmental safety and heat transfer properties. In the braking department, maintaining high-quality fluid is vital for ABS and traction control systems. The AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid meets the MB Sheet 331.0 standards (specifically 0009895605090109), ensuring a stable viscosity that prevents boiling during hard stops and provides a firm pedal feel.
Vehicle Background and Model Reputation
The 2018 Mercedes-Benz Metris represents a pivotal shift in the commercial van segment, blending the robust utility required for delivery and work with a level of refinement rarely seen in its class. Originating from the renowned Mercedes-Benz plant in Kecskemét, Hungary, the Metris is built on a platform that prioritizes safety, fuel efficiency, and driver comfort. Unlike traditional body-on-frame workhorses, the Metris uses a unibody construction derived from the passenger car lineage, which results in a quieter, more agile driving experience. This engineering choice makes the vehicle particularly popular among businesses that require a professional appearance and drivers who appreciate a car-like ride quality.
Under the hood, the 2.0L turbocharged engine produces a respectable amount of power, allowing the van to merge easily onto highways and climb inclines without straining. The presence of the turbocharger is a double-edged sword; it provides excellent torque for hauling but also introduces higher operating temperatures that can accelerate the breakdown of conventional lubricants. This is why synthetic lubricants are highly recommended for this vehicle. The turbocharger spins at incredibly high speeds, and without the proper film strength and thermal stability provided by AMSOIL products, components can degrade prematurely. The 7-speed automatic transmission adds to the vehicle’s versatility, allowing for smooth acceleration and better fuel economy compared to older 5 or 6-speed designs.
Owners of the 2018 Metris generally praise its maneuverability in urban environments and its comfortable seating position, which includes a low floor for easy loading. However, like any complex machine, there are specific areas where regular maintenance and high-quality fluids can prevent costly repairs. One common issue with turbocharged engines is the accumulation of carbon deposits on the intake valves, especially on direct injection models. While the source summary does not list a specific carbon cleaner for this model, the use of AMSOIL P.i.® Performance Improver in the fuel tank can help maintain injector flow and reduce the need for higher-octane fuel, indirectly supporting the engine’s cleanliness. Another potential concern is transmission wear if the vehicle is used for frequent heavy towing or stop-and-go delivery runs. Without the proper friction modifiers found in synthetic transmission fluids, the transmission can develop shudder or slipping issues over time. The robust synthetic fluids recommended for the Metris help mitigate these risks by maintaining fluid stability under stress.
Additionally, the cooling system is a critical component in this vehicle due to the heat generated by the engine and the compact packaging of the engine bay. Over time, coolant can become acidic, leading to corrosion of the aluminum engine components and hoses. This is a known issue in many Mercedes-Benz models as they age. Using a phosphate-free, silicate-free synthetic coolant like the AMSOIL options ensures that the cooling system remains clean and protected, preventing leaks and maintaining optimal engine temperatures. Finally, brake system performance is paramount in a vehicle that may carry heavy loads. Brake fluid is hygroscopic, meaning it absorbs moisture from the air over time, which can lower the boiling point and lead to vapor lock or corrosion. Regular flushing with a high-performance synthetic brake fluid ensures that the braking system remains responsive and safe, regardless of the vehicle’s age or mileage.
For those looking to extend the life of their 2018 Mercedes-Benz Metris, choosing the right lubricants is the first and most important step. Whether it is the engine oil protecting the turbocharger, the transmission fluid ensuring smooth shifts, or the brake fluid guaranteeing a safe stop, every fluid plays a vital role. By following the recommended AMSOIL guidelines, owners can enjoy the vehicle’s intended performance and reliability for years to come.