2015 Audi S1 2.0L Petrol · MY51 NAV

The most recent MOT test on 2026-01-29 was passed without any recorded defects, marking the vehicle’s cleanest inspection in the past six years. Despite this, the advisory from the 2020 MOT remains a critical consideration, indicating that the near- and offside rear brake discs exhibit moderate wear, pitting, or scoring but are not yet deemed seriously weakened. This recurring advisory suggests a consistent pattern of brake disc wear, which, while not failing the test, warrants closer attention. The absence of defects in subsequent MOTs implies that the vehicle has maintained roadworthiness through its maintenance schedule, but the brake disc condition should be monitored to prevent premature failure, especially if the vehicle is subjected to heavy braking or frequent stop-and-go traffic. The recorded mileage of 61,233 miles over approximately 11 years translates to roughly 5,567 miles per year, which is notably lower than the average for a vehicle of this age and model. Such low mileage can result from light usage, extended periods of inactivity, or potentially less aggressive driving conditions. However, prolonged standing—particularly in a high-performance vehicle like the Audi S1—can accelerate wear on components such as brake systems, suspension, and electrical systems. The brake discs’ wear advisory, combined with the vehicle’s age and potential idling, suggests that the braking system may have been under stress from infrequent but heavy use or prolonged static braking. Additionally, low mileage could mask other wear patterns, such as suspension bush degradation or fluid degradation over time, which are more pronounced in higher-mileage vehicles. Given the clean MOT history and the brake disc advisories from 2020, the buyer should prioritise a thorough inspection of the braking system, particularly the rear discs and calipers. On a test drive, listen for uneven brake pedal travel, a grinding or squeaking noise when braking, or signs of caliper binding, which could indicate impending disc failure. Inspect the rear brake discs visually for further pitting, warping, or glazing, and check for any fluid leaks around the brake master cylinder or caliper seals. If the discs are confirmed to be within safe limits but the advisory persists, consider replacing them sooner rather than later, especially if the vehicle is driven in stop-and-go traffic or under performance conditions. Beyond the brakes, examine the suspension for excessive clunking or uneven tyre wear, which could signal worn suspension components or misalignment. For the broader vehicle condition, given the vehicle’s age and low mileage, the buyer should also address several practical checks. First, inspect the tyres for signs of sidewall cracking or perishing, which can occur even with low mileage if the vehicle has been stored in conditions prone to UV degradation or extreme temperatures. Check the tyre tread depth for legal compliance and uneven wear patterns, which may indicate misalignment or suspension issues. The 12-volt battery should be tested for charge retention and overall health, as prolonged inactivity can lead to sulphation or corrosion in the terminals. Additionally, since the vehicle has not undergone a full service in several years, verify the presence of service book stamps for critical time-based maintenance such as fluid top-ups (oil, brake fluid, coolant) and timing belt replacement if applicable. Finally, check for any signs of corrosion on the undercarriage, particularly around the exhaust system, wheel arches, and underbody components, which can develop from prolonged exposure to moisture. If the vehicle has been stored in a damp or unprotected environment, this risk is heightened.