The 2007 Audi A6 Quattro with the 4.2L 8-cylinder engine (Engine Code BVJ) is a sophisticated piece of German engineering that demands precision maintenance to perform at its best. This vehicle features a powerful naturally aspirated V8 paired with Audi’s renowned all-wheel-drive system, making it a capable performer for both daily driving and spirited road trips. However, high-performance engines like the BVJ generate significant heat and are particularly sensitive to the quality of fluids running through them. Using the correct lubricants is essential to maintain engine clarity, prevent wear on critical timing components, and ensure the longevity of the drivetrain.
Recommended AMSOIL Products
- AMSOIL 5W-40 MS 100% Synthetic European Motor Oil – A premium formulation specifically designed for the unique demands of gasoline, diesel, and hybrid European vehicles, featuring a precise blend of synthetic base oils and premium additives.
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – Offers robust protection for European engines with a synthetic European formula that ensures optimal performance in a wide range of operating conditions.
- AMSOIL 0W-40 FS 100% Synthetic European Motor Oil – Provides superior flow properties during cold starts while maintaining protection at high temperatures, ideal for extreme climates or high-performance driving.
- MANN-FILTERS Oil Filter – Features premium media that offers significant improvements over original equipment manufacturer-branded filters to trap contaminants and protect the engine.
- 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.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated formula that provides protection up to 150,000 miles and greatly surpasses standards for metallic corrosion and erosion resistance.
- 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.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Engineered to protect against wear and maintain peak transmission performance for the 6-speed automatic unit.
- AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube – Specifically engineered for long service life with high-load gear and bearing protection that resists rust and corrosion while improving efficiency.
- 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.
- AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid – Reduces friction and helps seals remain soft to prevent leaks while providing strong anti-wear protection for quiet operation.
Proper lubrication is not just about keeping the engine running; it is about preserving the engineering integrity of the 2007 Audi A6 Quattro. The 4.2L BVJ engine is a high-performance unit that benefits immensely from the superior shear stability and thermal resistance found in AMSOIL synthetic motor oils. Unlike conventional oils that can break down under the intense heat generated by the V8, synthetic options maintain their viscosity index and protective film strength, ensuring that critical components like timing chains and camshafts remain properly lubricated. The recommended 8.9-quart capacity (with filter) allows for a substantial reservoir of lubricant, which, when paired with the high-capacity MANN-FILTER oil filter, ensures that contaminants are removed efficiently to keep the engine clean. Regular oil changes using these synthetic formulations can help mitigate issues common to high-mileage European vehicles, such as oil consumption and sludge buildup.
Transmission and Drivetrain Protection
The Quattro all-wheel-drive system relies heavily on the precise operation of its automatic transmission and the differential assemblies. The 6-speed 09L automatic transmission requires a fluid that can handle the torque load and heat generated during spirited driving or towing. AMSOIL’s transmission fluids are formulated to resist oxidation and thermal breakdown, providing a stable friction characteristic that ensures smooth shifting and protects internal clutches and bands. The total fill capacity is 10.4 quarts, though the initial fill is approximately 4.2 quarts, making it important to use the correct fluid volume to prevent overfilling and pressure issues. Additionally, the Quattro system includes a transfer case and front and rear differentials. Using AMSOIL 75W-90 Long Life Synthetic Gear Lube in these components ensures that the gears and bearings are protected from wear and that the seals remain pliable to prevent leaks. This is particularly beneficial for the front differential, which holds 2.3 pints, and the rear differential, which varies from 1.9 to 3.2 pints depending on the specific configuration.
Cooling System and Fluid Maintenance
The cooling system of the 2007 A6 Quattro is critical for managing the temperature of the powerful V8 engine. With a capacity of 12.2 quarts, the cooling system benefits greatly from AMSOIL’s antifreeze formulations. The Passenger Car & Light Truck Antifreeze & Coolant is a 50/50 pre-mix that provides protection against corrosion without the need for added chemicals, and it is compatible with all other antifreeze colors. For those who prefer a concentrated option, the Propylene Glycol Antifreeze offers extended protection and superior heat transfer properties. Maintaining the cooling system with these products ensures that the engine operates at its optimal temperature, reducing the risk of overheating and extending the life of the radiator and water pump.
Brakes and Steering
Safety and control are paramount in a vehicle of this caliber. The braking system should not be neglected, as brake fluid absorbs moisture over time, which can lower its boiling point and lead to brake fade. AMSOIL DOT 3 and DOT 4 Synthetic Brake Fluid offers a higher boiling point than conventional fluids, ensuring consistent pedal feel and reliable stopping power even under heavy use. Similarly, the power steering system requires a fluid that protects seals and reduces friction. The 100% Synthetic Multi-Vehicle Power Steering Fluid helps keep seals soft and prevents leaks while providing excellent lubrication for the pump and rack, ensuring quiet and smooth steering response.
About the Vehicle
The 2007 Audi A6 Quattro, equipped with the 4.2L 8-cylinder engine, represents a high point in Audi’s engineering philosophy, combining luxury, performance, and advanced technology. This generation of the A6 is built on the Volkswagen Group’s premium platform, which is renowned for its structural rigidity and refinement. The 4.2L V8 engine, known by the internal code BVJ, is a naturally aspirated powerhouse that delivers smooth, linear power and a distinctive exhaust note that enthusiasts appreciate. Unlike some modern turbocharged engines that can suffer from heat-related issues, this naturally aspirated V8 relies on robust internal components and precise engineering to generate its output, making it a reliable choice for those who enjoy a more traditional driving experience. The Quattro all-wheel-drive system is a hallmark of Audi, providing exceptional traction and stability in all weather conditions, from rain-slicked highways to snowy mountain passes.
Owners of the 2007 A6 Quattro often value the vehicle for its blend of comfort and sportiness. The interior is typically spacious and well-appointed, offering a quiet cabin that isolates passengers from road noise. The driving character is sophisticated, with a suspension setup that balances compliance with firm control. This vehicle is well-suited for both daily commuting and long-distance travel, offering a sense of security and confidence on the road. However, like any complex European vehicle, it does have specific requirements and potential maintenance areas. Owners should be aware that the cooling system can be prone to leaks from plastic components over time, and the high-performance nature of the engine means that using inferior oil can accelerate wear on the timing chain guides. Additionally, the electronic systems, including the suspension and transmission controls, require clean, stable power and proper fluid levels to function correctly. The power steering pump can also develop noise if the fluid becomes contaminated. Finally, the automatic transmission fluid can degrade faster than expected under severe driving conditions, necessitating high-quality synthetic fluids to maintain shift quality. By addressing these specific needs with premium lubricants, owners can ensure their A6 Quattro continues to perform as a premier luxury sedan for years to come.