2013 Audi Q5 S Line TDI Quattro 2.0L Diesel · OU63 OAJ

The 2013 Audi Q5 S Line TDI Quattro currently holds an unroadworthy status following a FAILED MOT on 30 May 2026 at 135,879 miles, despite the record showing no defects listed for that test. This discrepancy demands immediate clarification from the seller and a full retest before any purchase proceeds. Prior to this failure, the maintenance trend was remarkably stable, with four consecutive clean passes recorded between April 2022 and May 2025, indicating a period of consistent upkeep and no flagged mechanical or structural concerns. The vehicle has covered 135,879 miles over roughly thirteen years, averaging approximately 10,452 miles per year, which is typical for its age and class. The annual mileage progression is steady and unremarkable, with no sudden jumps or suspiciously long gaps between tests that might suggest periods of SORN or odometer tampering. Each MOT was conducted within a tight window around late April to late May each year, suggesting a disciplined annual servicing routine. The 4,730-mile increment between the May 2025 pass and the May 2026 failure is consistent with the established pattern, ruling out any recent spike in use that could explain accelerated wear. Buyers should treat the May 2026 failure as a serious red flag until the exact reason is confirmed. A test recorded at the vehicle's current terminal mileage with no defects yet marked as failed is highly unusual and may indicate an administrative error, a failed retest after a previous advisory was ignored, or a defect discovered after the certificate was issued. Request the full VT20 refusal certificate and the VT20 pass certificate from any subsequent retest before proceeding. If the failure relates to the exhaust emissions system, common on the 2.0 TDI engine at this mileage, expect potential DPF or EGR valve remediation costs. Suspension components, including front lower arm bushes and rear trailing arm links, should be physically inspected for play, as these are known failure points on the Q5 platform beyond 120,000 miles despite no prior advisories appearing on record. The Quattro drivetrain's rear differential and propshaft gaiter should also be checked for leaks or deterioration, as these items are not always flagged during a standard MOT but represent costly repairs if neglected.