2021 Audi A3 S Line Comp 45 Tfsi E SA 1.4L Hybrid electric (clean) · YG21 ADK

The most recent MOT test, recorded on 10 July 2026, shows a pass with no defects recorded, which on the surface suggests the vehicle has been brought up to a roadworthy standard immediately prior to sale. However, a closer look at the same date reveals a prior failed submission on the same day containing two dangerous defects relating to the nearside and offside front tyres, which were found to have lumps caused by separation or partial failure of their structure, alongside advisories for rear tyres worn on the inner edge close to the legal limit and an irreparable nail in the nearside rear tyre. The fact that the dangerous items were rectified and the vehicle subsequently passed indicates the failure was addressed, although it does point to a concerning tyre maintenance trend. Looking back through the history, the 2025 test was a clean pass with no advisories, but the 2024 test recorded advisories for both front tyres worn close to the legal limit on the edges, along with slight perishing and cracking noted across multiple tyres. The recurrence of edge wear advisories in 2024 followed by structural tyre failures in 2026 suggests that while the owner is responsive to MOT outcomes, attention to tyre condition between tests has been lacking, and this is a pattern worth scrutinising during any inspection. The recorded mileage of 50,930 miles across a five-year-old vehicle equates to roughly 10,186 miles per annum, which is broadly typical for a premium hatchback of this age and segment, indicating neither excessive high-mileage wear nor prolonged periods of standing unused. The MOT history does not flag any significant gaps in mileage accumulation between tests, with the vehicle having been presented consistently on an annual basis. For a plug-in hybrid such as the 45 TFSI e, regular usage is beneficial for the health of both the combustion drivetrain and the high-voltage battery system, as prolonged standing can lead to degradation of lithium-ion cells and 12V auxiliary battery failure. At this mileage, mechanical consumables such as brake pads, discs, and tyres will have already been through at least one full cycle of replacement, and the powertrain, including the e-motor, transmission, and hybrid system components, will be entering a phase where preventive servicing becomes increasingly important. Given the recorded tyre history, a prospective buyer should conduct a very thorough physical inspection of all four tyres, paying particular attention to the inner shoulders of both front and rear tyres, as the recurring advisories for inner-edge wear suggest a possible underlying issue such as incorrect wheel alignment, worn suspension bushes, or weakened coil springs leading to a slight change in camber. On a test drive, listen for any suspension clonks or knocking over uneven surfaces, and feel for any pulling to one side or vagueness in steering response, all of which could point to geometry or suspension deterioration. Any lump or bulge in the sidewall must be treated as an immediate safety risk, as the dangerous defects recorded demonstrate how catastrophic structural separation can develop rapidly. Additionally, request evidence of a recent four-wheel alignment check and verify the age of the tyres currently fitted, as tyres older than five years can suffer from internal hardening even if the tread depth appears adequate. Beyond the tyre concerns, this hybrid powertrain requires specific checks that a conventional petrol or diesel vehicle does not. Confirm that the 12V auxiliary battery has been recently replaced or tested, as these units are prone to premature failure in hybrids and can cause a cascade of electrical faults if left unattended. The brake system on a hybrid is also subject to a phenomenon known as binding calipers, as regenerative braking reduces the workload of the friction brakes, leading to corrosion on the discs and potential seizing of the caliper pistons. On the test drive, perform several moderate to firm stops from higher speeds and listen for any brake shudder or grinding, which would indicate disc warping or pad separation. Finally, verify the service history stamps, paying particular attention to the timing chain interval on the 1.4 TFSI petrol unit, the condition and replacement schedule of the hybrid battery coolant and engine coolant, and ensure that the brake fluid has been changed within the past two years, as brake fluid is hygroscopic and degrades with calendar age regardless of mileage.