2014 Audi A6 3.0L Diesel · SH06 KAA

The 2014 AUDI A6 presents a mixed roadworthiness profile marked by recurring mechanical issues that have manifested intermittently across its MOT history rather than through a single catastrophic failure. The most recent test on 2026-03-28 returned a PASS despite the presence of four advisories including worn front suspension arm components, corroded rear sub-frame, undertrays installed, and dangerous rear brake pads below the minimum safe thickness of 1.5mm. This pattern of alternating between passing and failing assessments within a very short window—from the dangerous failure on 2026-03-27 just days prior—indicates an unstable vehicle that requires immediate attention regardless of its current passing status. The presence of a dangerous brake pad measurement combined with structural concerns around the rear sub-frame suggests systemic rather than isolated problems that could escalate under normal driving conditions. At 99,977 miles on approximately 12 years of ownership, the vehicle accumulates roughly 8,331 miles annually, which aligns with expected wear patterns for its age. However, the absence of consistent MOT testing throughout this period is notable, particularly the gap between the 2021-03-19 failure and the next successful test in 2025-03-31 spanning nearly four years. While the annual mileage increase appears reasonable, the irregularity in test coverage raises questions about whether the vehicle received regular professional inspections or if it spent extended periods unattended on the road. This maintenance inconsistency makes it difficult to assess whether the current condition reflects genuine accumulated wear or simply the natural degradation of components that were never subjected to systematic monitoring. The front suspension system shows clear signs of progressive deterioration with the 2026-03-28 report noting worn suspension arm pins and bushes that are not yet causing severe movement but represent developing fatigue. During a test drive, you should listen for any clunking or knocking over bumps when traversing uneven surfaces, as worn arm components can transmit vibration and potentially cause premature wear on other suspension elements. The rear brake pads measured at less than 1.5mm on both sides in the 2026-03-27 failure constitute a dangerous condition requiring immediate replacement; if the pads are this thin, stopping power will be compromised and braking distances increased. Additionally, the corroded rear sub-frame identified in multiple records warrants visual inspection for structural weakness, especially around wheel arch areas where rust penetration often begins. Undertrays fitted on the vehicle indicate potential aerodynamic or drainage issues that could affect handling and water accumulation in the cabin. The recurrent tyre problems across three separate MOT tests—front tyres with cuts that did not reach the ply, and notably a bulging rear tyre described as structurally failed in 2021—signal ongoing tyre damage that may stem from alignment issues, uneven load distribution, or road surface impacts. When inspecting the tyres during your test drive, examine each side for any visible cuts, cracks, or bulges, particularly checking the bead seat and tread depth. The combination of worn brake pads, suspected sub-frame corrosion, and problematic tyre condition creates a scenario where the vehicle may require substantial repair work before achieving full safety compliance, and buyers should treat this as a high-risk purchase with significant remediation costs likely ahead of them.