2018 Audi Q7 3.0L Diesel · OV18 ABF

This 2018 Audi Q7 has demonstrated a concerning inconsistency in its most recent MOT cycle, with a failure in March 2026 despite a passing test on the same day—primarily due to an unresolved engine malfunction indicator light (MIL) issue. The presence of this diagnostic trouble code suggests either a persistent fault in the emissions system or engine management, which was not addressed before the test. While the suspension bushes and seatbelt webbing were noted as worn but not critical, the failure on the MIL indicates a mechanical or electrical problem that cannot be dismissed as purely cosmetic or minor. The record shows no evidence of corrective action between the two 2026 tests, raising questions about whether the vehicle was driven with an active fault code active. This pattern undermines confidence in the vehicle’s reliability, particularly for components tied to emissions compliance and drivetrain integrity. The mileage progression reveals an unusually aggressive usage pattern, with the vehicle accumulating approximately 12,434 miles in just over a year between the 2025 and 2026 tests—a rate far exceeding typical expectations for a vehicle of this age. This rapid accumulation suggests either heavy daily use or inconsistent maintenance intervals, both of which accelerate wear on high-stress components like suspension, brakes, and drivetrain. Notably, there is a 13,534-mile gap between the 2024 and 2025 tests , during which no defects were recorded, followed by the sudden surge in mileage and the first appearance of suspension and seatbelt issues in 2026. This inconsistency implies either a period of lighter use or deferred maintenance before the vehicle was pushed harder, potentially exacerbating existing wear. A prospective buyer should prioritise an immediate diagnostic check for the unresolved engine MIL fault , as this could indicate a failing catalytic converter, oxygen sensor, or broader engine management issue that, if ignored, risks further damage or failure. The front suspension bushes , while not yet classified as critical in the MOT, show clear wear and should be inspected for excessive play or cracking, particularly given the high mileage. The rear reflector defect from 2025, though minor, warrants verification that it has been repaired—bulbs or reflectors can degrade quickly under British weather conditions. Finally, the seatbelt webbing failure, though not a safety risk at present, suggests potential neglect in interior checks; buyers should confirm no other webbing or latch mechanisms exhibit similar wear. Given the vehicle’s age and mileage, a thorough inspection of coil springs, shock absorbers, and brake calipers —especially for binding or uneven wear—is essential, as these are likely candidates for accelerated failure under such high-mileage conditions.