2008 Audi RS6 5.0L Petrol · RS06 ACE

A 2008 Audi RS6 with five consecutive clean MOT passes from 2021 through 2025, the most recent being a pass on 8 December 2025 with no advisories, no failures, and no recorded defects of any kind, presents an unusually tidy official test history for a performance saloon now in its eighteenth year. The absence of any advisory items across the entire recorded MOT timeline is notable because the DVSA inspection regime routinely flags wear items such as brake discs, pads, tyres, suspension components, and corroded underbody parts on cars of this age. Whether this reflects a car that genuinely has no worn components at the time of test, or simply that the test centre has been lenient, is not something the MOT data alone can confirm, but the paperwork itself is as clean as one could reasonably hope to see for an 18-year-old high-performance vehicle. The recorded mileage of 75,143 miles against an 18-year registration gives an average accumulation of roughly 4,175 miles per year, which is low for a car of this type and age, particularly for an RS-badged model capable of significant cross-country use. The MOT records do not show explicit mileage progression across the five tests, so a buyer should verify the odometer directly against the V5C and any service documentation. Low annual mileage of this nature on a 5.0-litre V10 twin-turbocharged flagship carries specific mechanical implications: prolonged standing periods can lead to oil migration, seal drying, perished rubber components, and flat-spotted tyres, while the engine, transmission, and quattro drivetrain benefit from regular load-bearing running. The combination of low miles and a performance powertrain means that straightforwardly low wear on consumables can coexist with latent issues in items that degrade with age rather than use. From a buyer inspection standpoint, the clean MOT record permits focus on age- and model-specific concerns rather than chasing documented defects. Particular attention should be paid to the quattro system, including any signs of drivetrain shunt or binding on tight manoeuvres, and to the front and rear suspension, where worn control arm bushes, top mounts, and coil springs are common on this platform and would benefit from a rolling-road or four-wheel alignment check. The carbon-ceramic or steel brake discs should be inspected for corrosion and lipping, the flexible brake and fuel lines examined for perishing, and the underside scrutinised for oil seepage from the engine, front differential, and transfer case, all common on RS6s of this vintage. On the road, listen for any clonks from the front suspension over broken tarmac, watch for a vague or wandering steering feel, and check that the notoriously complex MMI infotainment and electronic systems operate correctly. A test drive should also include a sustained acceleration run to verify smooth power delivery, consistent gear changes from the automatic transmission, and steady oil pressure, as the V10 engine is known to suffer from oil consumption and timing chain guide wear if not maintained to schedule. Inspect the intercoolers, boost pipes, and air intakes for oil contamination, which can indicate prior turbo issues. A pre-purchase inspection by a specialist familiar with the C6 RS6, including a borescope examination of the cylinders and a compression test, would be prudent given the cost of rectification on this powertrain compared with the relatively uninformative MOT history.