2018 Audi A6 1.8L Petrol · BC18 AAX

The 2018 Audi A6 shows a consistent roadworthiness record with no defects or advisories across the most recent five MOT tests, including the latest pass on 27 August 2025 at 40,165 miles. The absence of any recurring failures or advisories suggests the vehicle has been maintained at a baseline standard, though the lack of recorded issues does not preclude hidden wear or deferred maintenance. The most notable anomaly is the near-simultaneous pass and fail in August 2022, where the vehicle was tested just one mile apart—this could indicate a minor administrative oversight rather than a mechanical issue, but it warrants scrutiny of the suspension or braking systems, which are common failure points in this model. The tester’s failure to log any defects in four consecutive passes reinforces the need for an independent inspection of high-wear components. The recorded mileage of 40,165 miles over eight years equates to an average of approximately 5,000 miles annually, which is unusually low for a vehicle of this age and type. This pattern suggests either minimal use, prolonged periods of storage, or potential odometer tampering, though the latter cannot be confirmed without further evidence. The gap between the 2022 fail and pass—just three days apart—also raises questions about whether the vehicle was driven between tests, which would be unusual for such a short interval. The consistency of the mileage increments (around 4,000 miles per year) further implies the vehicle has not been subjected to heavy or irregular usage, which could mean some components may have been less stressed than average. Given the lack of MOT advisories or defects, the primary focus for an in-person inspection should be the suspension geometry, particularly the condition of the rear coil springs, bushes, and track rods, as these are prone to degradation over time without visible external signs. The braking system—including rear caliper binding, disc warping, and master cylinder integrity—should be thoroughly checked, especially since the 2022 near-fail could hint at a latent issue. Corrosion around the wheel arches, subframe, and exhaust system should also be examined, as Audi A6 models from this era are susceptible to rust progression in wet conditions. Finally, the electrical system, including the battery health and sensor calibration, should be verified, as intermittent faults can go undetected in MOT testing. The absence of recorded advisories does not guarantee these areas are free from wear, so a detailed mechanical assessment is essential.