2020 Audi A3 S Line 35 TDI S-A 2.0L Diesel · KC04 BAB

A consistent record of clean passes has recently been interrupted by the emergence of wear-related advisories, indicating that the vehicle is entering a phase where key consumables require attention. While the test on 30 March 2026 resulted in a pass, the flagging of a worn and pitted front inner brake disc and an inner-edge worn offside front tyre marks a departure from the previous three defect-free inspections. This trend suggests that the vehicle's mechanical state is now reflecting the natural degradation of its braking and tyre components. The recorded mileage of 28,579 miles is low for a vehicle of this age, averaging approximately 4,763 miles per year. Such a low rate of accumulation often points to a usage profile consisting of shorter journeys or extended periods of standing. Mechanically, this pattern can contribute to the type of surface corrosion and pitting observed on the brake discs, as they are not subjected to the frequent, high-temperature scrubbing associated with higher-mileage motorway use. Attention should be directed toward the front braking system and front-end alignment. The pitting and scoring noted on the front inner brake disc should be monitored for any associated pedal judder or pulsating sensations during deceleration. A test drive should specifically focus on whether the braking performance feels consistent or if there is any unevenness in the stop. The inner edge wear on the offside front tyre suggests a potential issue with wheel alignment or suspension geometry. During the test drive, the vehicle should be checked for any steering pull or a tendency to drift, which would confirm the need for a four-wheel alignment. Inspecting the remaining tread depth on all four tyres is necessary to determine if the offside front requires immediate replacement to maintain legal roadworthiness.