Audi RS6/RS7 C8 Buying Guide

The Audi RS6 and RS7 C8 represent the pinnacle of Audi’s performance estate and saloon offerings. With their impressive power, refined handling, and everyday usability, they have become highly desirable vehicles. However, as with any performance car, buying a used RS6 or RS7 requires a bit of knowledge to ensure you're making a sound investment. This guide highlights the key things to look out for when purchasing an Audi RS6/RS7 C8.

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Engine and Performance

The heart of the RS6 and RS7 C8 is Audi's 4.0-litre twin-turbo V8 engine, which produces around 591bhp and 800Nm of torque in standard form. As with any performance car, the engine should be the first thing to check. The car should start easily, idle smoothly, and deliver consistent power without hesitation or roughness. Be sure to ask the seller about any history of engine work or modifications, particularly concerning the turbochargers, as these are expensive parts to replace.

Service History

A comprehensive service history is vital when purchasing a used performance car. Ensure that the car has been regularly maintained by Audi or a reputable specialist. The RS6/RS7 C8, while built to last, requires high-quality oil and fluid changes, as well as regular checks for wear and tear. Ask for records showing that the car has received proper servicing, including the timing belt (if applicable), brake fluid, and cooling system checks.

Suspension and Handling

Both the RS6 and RS7 come with Audi’s adaptive air suspension system as standard, which helps to balance performance with comfort. However, the suspension system can be costly to repair if anything goes wrong. When inspecting the car, check for any unusual noises from the suspension, especially when driving over bumps or corners. Uneven tyre wear can also be an indicator of suspension issues or misalignment.

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Brakes

The RS6 and RS7 are fitted with high-performance carbon-ceramic brakes as an option, which offer exceptional stopping power but come with a high replacement cost. Standard steel brakes are generally cheaper to maintain, but they should still be checked for signs of excessive wear. Look for any signs of scoring on the discs, and inspect the brake pads for thickness. Ensure the car stops without pulling to one side, which could suggest issues with the brake system.

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Interior and Electronics

Audi is known for its premium interior quality, and the RS6/RS7 C8 continues this tradition. When inspecting the interior, check for signs of wear on the seats, dashboard, and any buttons or controls. Ensure that all electronic systems are functioning correctly, including the infotainment system, climate control, and adaptive cruise control. Be aware that issues with the MMI (Multi Media Interface) system can be expensive to fix.

Transmission and Gearbox

The C8 RS6 and RS7 are equipped with an eight-speed automatic transmission, which should shift smoothly without hesitation or jerking. Test the car in different driving modes to ensure the gearbox adapts to your driving style. When purchasing a used model, confirm that the car’s gearbox fluid has been changed according to Audi's recommended intervals, as failure to do so can lead to long-term issues.

Tyres

Tyres are one of the most crucial elements when it comes to a high-performance vehicle like the RS6/RS7. These cars are equipped with wide tyres to provide optimal grip, which can be expensive to replace. When inspecting the car, check the tread depth and ensure that the tyres are all matching in terms of brand, model, and wear. Uneven wear can indicate alignment issues, suspension problems, or aggressive driving habits.

Exhaust System

Both the RS6 and RS7 come with an optional sports exhaust system that enhances the sound and performance of the car. While this system is generally robust, it’s worth checking for any signs of damage or leaks, particularly around the catalytic converters and exhaust valves. A hissing or rattling noise from the exhaust could indicate an issue that may need addressing.

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Recalls and Warranty

Before purchasing any used vehicle, including the RS6/RS7 C8, it's important to check whether the car has been subject to any recalls. Audi typically handles recalls efficiently, but it’s worth verifying that all recall work has been completed. Additionally, ensure that the car is still under warranty, or check if an extended warranty is available. Performance vehicles like the RS6/RS7 can incur expensive repairs, so having coverage can provide peace of mind.

Test Drive

Finally, always take the car for a test drive. This will allow you to get a feel for the performance and handling. Listen for any strange noises, pay attention to how the car accelerates, brakes, and handles corners. A test drive also gives you the opportunity to ensure that the car is comfortable and that all features are working as expected.

Conclusion

The Audi RS6 and RS7 C8 are fantastic performance cars, offering a perfect balance of everyday usability and thrilling performance. However, as with any high-performance vehicle, they require careful consideration when buying. By paying attention to the key areas outlined in this guide, you can make an informed decision and enjoy the impressive driving experience that these vehicles offer.

Before committing, always seek the advice of a specialist or have the car inspected by a trusted mechanic to avoid any unexpected issues.