About the Audi RS4
First launched in 2000, the Audi RS4 has evolved through four generations: the B5 (2000-2001), B7 (2006-2008), B8 (2012-2015), and B9 (2018-present). The B7 featured a 4.2-litre V8 producing 420bhp, while the B8 upped power to 450bhp. The current B9 generation switched to a 2.9-litre twin-turbo V6 with 450bhp, offering improved efficiency without sacrificing performance. All versions deliver 0-60mph times under 4.5 seconds and feature Audi's renowned quattro all-wheel-drive system, making the RS4 one of the most capable all-weather performance cars available.
The RS4 Avant estate body style provides 505 litres of boot space, making it genuinely practical for family duties while maintaining its supercar-slaying credentials. Standard equipment across generations has been generous, including sports seats, adaptive suspension, and high-end infotainment systems. The RS4's blend of everyday usability and explosive performance has made it a favourite among enthusiasts seeking a do-it-all performance car.
What Affects the Price of a Used Audi RS4
Generation is the primary price determinant, with B7 models (2006-2008) starting around £8,000-£20,000, B8 versions (2012-2015) ranging from £25,000-£38,000, and B9 cars (2018-onwards) commanding £38,000-£45,000 or more. Mileage significantly impacts value, particularly for the B7 and B8 generations where high-mileage examples above 80,000 miles can be £5,000-£8,000 cheaper than lower-mileage equivalents.
Service history is critical for RS4 values, with full Audi main dealer history adding £2,000-£4,000 to asking prices compared to incomplete or independent service records. Optional extras such as Dynamic Ride Control (DRC), carbon ceramic brakes, RS sports exhaust, and the Audi Sport package can add £3,000-£5,000 to values. Condition of high-wear items including tyres, brakes, and suspension components affects negotiating position significantly.
Colour choice influences desirability, with Nardo Grey, Daytona Grey, and Mythos Black being most sought-after on B9 models, while Misano Red and Suzuka Grey are popular on earlier generations. Accident history or category markers substantially reduce values, typically by 20-30% even after professional repairs. Regional variations exist, with London and South East examples often commanding £1,000-£2,000 premiums over similar northern cars.
Tips for Buying a Used Audi RS4
Verify complete service history with evidence of major services performed at recommended intervals—the V8 engines in B7 and B8 models require carbon cleaning every 40,000-50,000 miles, costing £500-£800. Check for DRC suspension failures on B7 models (repair costs £1,500+ per corner), and inspect for oil consumption issues on B8 V8 engines, which can indicate piston ring problems requiring engine rebuilds costing £8,000+.
Examine the condition of carbon ceramic brakes if fitted, as replacements cost £6,000-£8,000 for a full set. Test the dual-clutch S tronic gearbox thoroughly for smooth shifts and no juddering at low speeds, as mechatronic unit failures cost £2,000-£3,000 to rectify. Inspect rear differential mounts for wear, particularly on higher-mileage B7 and B8 cars, and listen for transmission whine which indicates bearing wear.
Request evidence of cambelt changes on B7 models (required every 4 years/40,000 miles), and check for software updates on B9 twin-turbo engines to address known oil consumption issues. Have a pre-purchase inspection performed by an Audi specialist or RS-focused independent, costing £150-£250 but potentially saving thousands in unforeseen repairs. Check for outstanding finance, valid MOT history showing no advisories for suspension wear, and ensure all electronic systems including adaptive suspension, quattro differential, and driver aids function correctly.