2006 Audi S4 4.2L Petrol · S88 LOT

The most recent MOT from January 2026 shows a pass, but it highlights a recurring issue with oil leaks and a severely deteriorated offside front CV boot. While the vehicle passed, these defects indicate that maintenance on rubber components and seals is becoming a consistent requirement. The mechanical trend appears to be worsening. Over the last four years, we have seen a progression from minor suspension bushing wear in 2022 to repeated oil leaks and deteriorating CV boots and ball joint covers in 2023 and 2026. The 2024 inspection also flagged worn brake discs and tyre damage, suggesting that while the car is being kept roadworthy, it is starting to show the cumulative effects of age and component fatigue. At roughly 8,246 miles per year, the mileage is typical for a 20-year-old vehicle. This level of usage suggests the car has been driven regularly rather than sitting idle for long periods, which means you should expect standard wear on consumables like brakes, tyres, and suspension components. The recurring oil leak is the most significant concern. While noted as not excessive in recent tests, it is a persistent issue that could point to ageing gaskets or seals that may soon require more expensive repairs. Before purchasing, you must inspect the engine bay thoroughly for signs of fresh or weeping oil and check the condition of all drive shaft boots and suspension dust covers.