2019 Audi A6 2.0L Diesel · SC19 ONP

The defining mechanical story for this 2019 Audi A6 is one of broadly consistent roadworthiness, with five consecutive passes recorded since its first test in 2022. Four of those tests were passed without a single advisory, and the most recent examination on 3 March 2026 also returned a pass, albeit with the first advisory noted since the vehicle entered the MOT scheme: rear brake discs worn, but not excessively, on both sides. The wear rate implied by that advisory is not yet at a failure threshold, but bilateral disc wear on a rear axle is a useful early signal that the friction surfaces are approaching their service limit and will likely require replacement before the next test. There are no recorded failures, no structural corrosion advisories, and no suspension or steering defects across the entire five-test history, which means the test record does not flag any chronic mechanical deterioration at this stage. Recorded mileage stands at 74,103 miles across a seven-year lifespan, equating to an average accumulation of roughly 10,586 miles annually. That figure sits comfortably within the typical range for a vehicle of this age and class, suggesting neither prolonged periods of standing nor unusually intensive use. The MOT entries show the car has been tested every twelve months without interruption, and the mileage progression between tests does not reveal any obvious gaps or rapid surges that would point to inconsistent use. Mechanically, this level of annual mileage is sufficient to keep seals, brakes, tyres, and drivetrain components working normally, while not so high as to expect accelerated wear of major items beyond factory schedules. For a prospective buyer, the rear brake disc advisory is the single most actionable item from the MOT record and warrants a focused physical inspection. On a test drive, listen for any grinding or scraping noise from the rear axle on light application, feel for pulsation through the brake pedal under firm stops which would indicate disc runout or uneven wear, and watch for the rear of the car pulling to one side under braking. The discs should be inspected for a visible ridge at the outer edge and measured for thickness against the manufacturer minimum, as worn but legal discs can quickly progress to a failure threshold if pad material has also thinned. Given the bilateral nature of the advisory, it is worth budgeting for a matched pair of rear discs and pads rather than replacing components on one side only. Beyond the brake item, the absence of any recorded advisories on suspension arms, bushes, coil springs, brake pipes, or underbody corrosion is a positive data point, but a test drive should still verify these areas through feel rather than paperwork alone. Pay attention to any clonks, knocks, or creaks over uneven surfaces and speed bumps, which can indicate worn top mounts, anti-roll bar links, or rear suspension bush wear common to vehicles in this age bracket. Steering should remain precise without vibration, wandering, or excess play at the straight-ahead position. Under the bonnet, check for any signs of oil misting around the cam chain cover, turbo oil lines, and coolant expansion tank, as these are known wear points on Audi powertrains of this era. Finally, a thorough inspection of the rear underbody for any surface corrosion on subframe and suspension components would be prudent, given that the record does not flag this area either way.