2015 Audi TT 2.0L Petrol · L1 PFM

A recurring rear‑brake weakness defines the MOT narrative; the 2023 failure for off‑side rear pads below 1.5 mm and the accompanying advisory on a pitted rear disc highlight a period of inadequate braking performance, while subsequent tests have only recorded advisory wear rather than further failures. The latest 2026 MOT passed, yet it still flags the nearside rear tyre as approaching the legal limit, indicating that the brake issue was addressed but the wear pattern persists. At 58,069 mi for an eleven‑year‑old 2015 Audi TT the annual average is roughly 5,300 mi, well below typical usage for a sports coupe. Such low mileage often points to light or intermittent use, which can be benign for wear‑items but may allow age‑related degradation of rubber and elastomer components. The MOT record shows regular annual testing with a single six‑month gap between the 2019 and 2020 examinations, suggesting the car has not been subject to prolonged periods of inactivity that would raise concerns about battery or fuel‑system stagnation, but the modest mileage does not preclude the gradual hardening of suspension bushings or seals. Prospective buyers should focus on the rear‑brake assembly. Verify pad thickness on both sides, inspect the rear discs for scoring, rust or excessive run‑out, and test the pedal for a firm, consistent feel without sponginess or pulsation under moderate braking. Listen for any squeal or grinding that could indicate residual pad material or disc surface irregularities, and feel for any pull to one side when applying the rear brakes. Because the 2023 failure required a re‑test the following day, confirm that any recent pad replacement was correctly fitted and that the brake fluid level and condition are acceptable. The tyre advisory on the nearside rear wheel warrants a close visual and tactile inspection of tread depth across the tyre, sidewall integrity and any signs of uneven wear that could betray alignment or suspension issues. Given the vehicle’s age, a thorough check of suspension components—especially the front and rear bushings, control arm joints and anti‑roll bar links—for cracks, looseness or corrosion is advisable. Finally, a full pre‑purchase inspection by a qualified mechanic should include a diagnostic scan for any stored fault codes, a coolant system pressure test, and a review of the exhaust for leaks, ensuring that age‑related wear has not manifested in hidden failures.