2019 Audi A1 1.5L Petrol · AC66 CAS

A clear pattern of recurring brake wear concerns runs through the MOT history of this Audi A1, with the most serious entry recorded on 5 December 2023 when the vehicle failed on a dangerous defect, the offside rear inner brake pad being recorded at less than 1.5 mm thick, well below the legal service limit. The same test also flagged the offside rear inner brake disc as worn, pitted or scored on its friction face, although not to the point of being categorised as seriously weakened. The pads were subsequently renewed ahead of the 15 December 2023 retest, which passed without recorded defects, but the brake condition reappeared in a milder form on 27 November 2024 when an advisory noted that the front brake pads were wearing thin. The most recent test on 1 December 2025 recorded a clean pass with no advisories or defects, suggesting the braking system has been addressed, but the back-to-back flagging of both front and rear friction components within a relatively short period points to an underlying wear rate worth investigating rather than dismissing. With 56,432 miles recorded over a seven-year life, the A1 is averaging around 8,000 miles per year, which sits broadly in line with typical mileage for a car of this age and segment. Testing has been carried out annually without significant gaps, which provides a continuous record of roadworthiness, although the failure in late 2023 shows that an annual test alone does not guarantee interim condition. Given that the vehicle has covered a moderate annual mileage, consumable wear on items such as brake discs, pads, tyres and suspension components should be expected to accumulate steadily, and the recorded history bears this out. For a prospective buyer, the rear brake disc noted as pitted or scored in 2023 warrants particular attention on a test drive. Listen for any brake squeal, judder through the pedal, or vibration through the rear of the vehicle under moderate deceleration, as these can indicate that the disc surface has deteriorated further or that the caliper slider mechanism has begun to seize. The front pads flagged as thin in late 2024 should also be inspected directly for remaining friction material thickness, and the discs checked for lipping around the outer edge. On the road, any pulling to one side under braking, a spongy pedal, or a binding sensation after release would suggest caliper or hydraulic issues that would warrant closer examination. The tyre advisories recorded in December 2022, where both rear tyres were worn close to the legal limit on their edges and a nearside rear tyre contained a nail, indicate that the rear axle may be subject to uneven loading or slight misalignment. On a test drive, pay attention to any steering pull, uneven tyre wear across the axle, or a tendency for the rear end to feel unsettled over undulating surfaces. Visually inspect the sidewalls and tread edges of all four tyres for feathering or scalloping, which can point to worn suspension bushes or weak dampers. Beyond these specific areas, the absence of any structural, corrosion, suspension, exhaust, or lighting defects across five tests suggests the chassis and supporting systems have held up well, but the brake wear pattern remains the principal mechanical consideration for any purchase decision.