2017 Audi Q7 3.0L Diesel · KN05 AAA

Accumulated mileage of 111,068 over nine years points to a working-vehicle usage profile rather than a gentle suburban runabout, and although the MOT record itself is free of any failure entries, the advisories that have surfaced give a clear indication of which components are now approaching the point of needing attention. The October 2025 test was recorded as a pass with only a single minor advisory relating to a child seat obscuring full belt inspection, which is encouraging and consistent with the clean results from the previous three annual tests in 2022, 2023 and 2024. Beneath that tidy surface, the February 2022 advisory set is worth scrutinising because it captured several wear-related issues at once, notably a brake pad warning light illumination even though the pads were not at the wear limit, both front outer tyres showing edge wear, and a rear secondary lamp emitting white light to the rear. The fact that nothing of concern was flagged at the three subsequent tests suggests the brake warning light was rectified, the tyres were replaced, and the lamp issue was sorted, but the earlier cluster remains the best guide to the systems most likely to be approaching replacement on a high-mileage Q7 of this vintage. At roughly 12,300 miles per year, this Q7 has been driven significantly above the typical UK average and sits in the territory of a vehicle used for long motorway commutes, heavy family transport, or commercial-style mileage accumulation. The MOT testing cadence is perfectly regular, with annual entries every October and no gaps to suggest extended off-road periods, which means wear has been progressive rather than the consequence of standing followed by catch-up repair bills. From a purely mechanical standpoint, this rate of use accelerates wear on the larger and more expensive Q7 items: the front suspension wishbones, control arm bushes, anti-roll bar drop links, coil springs, and the adaptive air suspension compressor and struts if air suspension is fitted, along with the front and rear brake discs which tend to wear and warp more quickly when pads are left to run hot. The seven-figure mileage figure also means the quattro drivetrain, transfer case, and rear differential have been worked consistently, and although none of these are flagged on the MOT record, they warrant direct attention on any pre-purchase inspection. For a test drive, focus on the precise components that the MOT history hints are under load. Listen for clonks or creaks from the front suspension over speed bumps and during full-lock low-speed manoeuvres, as these are classic indicators of worn lower control arm bushes, top mounts, and anti-roll bar drop links on a high-mileage Q7, and pay particular attention to the nearside front corner where the 2022 tyre edge wear was recorded, since uneven shoulder wear often points to a tired bush or a geometry issue that has not been fully resolved. For the braking system, check that the warning light on the dash is not illuminated, confirm a firm pedal with no excessive travel, and feel for vibration or judder under medium to heavy braking which would indicate warped front discs, a common outcome on a heavy SUV that has covered this sort of distance. On a motorway stretch, verify that the steering stays centred without pulling, that the vehicle tracks true under braking, and that there is no wandering from the rear axle which can suggest worn rear suspension links or, on air-suspended examples, a sagging corner suggesting an air strut or dryer failure. Finally, inspect the underside on a ramp or with the wheels off the ground, as the MOT record does not capture structural corrosion history on this particular vehicle and a Q7 of this age and mileage in the UK is known for surface corrosion on the rear axle subframe, brake pipes, and suspension arms. Check the front brake discs for a pronounced lip and the rears for similar wear, examine the condition of the brake hoses and any visible pipework for corrosion or seepage, and look for oil misting around the engine, transfer case, and rear differential which would be consistent with the mileage accumulated. Tyre condition across all four corners should be uniform in brand and age, and if the fronts again show edge wear it would confirm that any underlying geometry or suspension issue from 2022 has not been fully resolved. With the MOT record showing only a pass history and modest advisories, there is no immediate cause for concern, but a pre-purchase inspection focused on suspension, braking, and driveline condition is essential given the heavy usage this vehicle has clearly experienced.