2017 Audi A3 2.0L Diesel · 4 MOD

A consistent pattern of tyre deterioration, particularly on the rear axle, defines the mechanical history of this 2017 Audi A3 across the recorded MOT tests. The most recent assessment on 10 September 2025 returned a clean pass with no advisories, which suggests the tyre issues that have surfaced repeatedly since 2021 may have been resolved, but the underlying history warrants close inspection. In September 2023, the nearside rear tyre was deemed dangerous due to a structural bulge and failed the test outright, while the offside rear was merely flagged with cracking and perishing. The 2023 pass recorded on the same date addressed the dangerous defect, yet advisories on rear tyre perishing had already appeared at the 2021 and 2022 tests, establishing a recurring vulnerability on the rear axle. The lone non-tyre advisory in this sequence is a note from September 2024 that the rear brake pads were wearing thin, indicating that the rear braking components are now due for attention following what appears to be a period of normal wear. The recorded mileage of 37,172 miles over nine years equates to an annual accumulation of roughly 4,130 miles, which is low for the vehicle's age and segment. This rate of use suggests the car has either covered predominantly short journeys or experienced extended periods of inactivity between tests, both of which carry mechanical implications. Low annual mileage tends to reduce wear on high-mileage consumables such as clutches, timing chains and interior trim, but it can accelerate deterioration of components affected by infrequent use. Rubber items like tyres, brake seals, suspension bushes and drive belt flexing components are particularly susceptible to perishing and drying out when a vehicle is left standing, which aligns with the recurring rear tyre cracking advisories seen throughout 2021 and 2022. Given the documented tyre failures and advisories, a prospective buyer should carry out a thorough physical inspection of all four tyres, paying particular attention to the rear pair for any sidewall bulging, cracking, or perishing even if the tread depth appears adequate. On a test drive, listen for any thumping or rhythmic vibration through the cabin that could indicate a deformed or separating tyre carcass, and inspect the sidewalls closely in good light for hairline cracks or raised bubbles. The September 2024 advisory on rear brake pad wear also warrants a check of the rear calipers for binding or uneven pad deposition, which can occur on vehicles that see predominantly low-speed, low-effort braking. It is worth feeling for any pulling to one side under moderate braking, as well as inspecting the rear discs for lipping or scoring, since worn pads left unmonitored can quickly damage the corresponding discs. Beyond the flagged components, the low recorded usage prompts broader checks consistent with a vehicle that may have stood for extended periods. Examine the underside for any signs of surface corrosion on suspension arms, brake pipes and subframe mounting points, particularly given that the MOT advisories have not flagged these but standing time can accelerate underbody oxidation. On the road, pay attention to any clonks or knocks from the front or rear suspension over speed humps and uneven surfaces, which could indicate dried-out or perished bushes. The engine bay should be inspected for any evidence of rodent damage to wiring or perished rubber hoses, both of which are common in low-use vehicles, and a cold start should be observed to confirm the engine turns over without hesitation, as standing periods place additional strain on the 12V battery and starter motor.