2021 Mazda CX-30 2.0L Petrol · AS70 MAC

Mild wear on the rear brake disc, a near‑side front tyre cut and light oil misting from both rear shock absorbers shape the current mechanical picture of this 2021 Mazda CX‑30, with the latest MOT on 11 August 2026 recorded as passed but retaining the rear‑disc advisory. Over the three recorded tests the pattern has been a steady accumulation of minor advisories rather than any outright failures, indicating that the vehicle has remained within legal limits but is beginning to show the early signs of component ageing typical for a five‑year‑old model. With only 23,113 miles logged over roughly five years the average annual mileage sits at about 4,600 mi, well below the UK average for a vehicle of this age. Such low utilisation suggests the car has spent considerable periods of limited use, which can be gentle on drivetrain wear but may also allow moisture to settle in sealed components such as shock absorbers. The absence of any testing gaps in the MOT record confirms the vehicle has been regularly inspected each year, providing a clear mileage trace without unexplained spikes. For a prospective buyer the rear brake disc should be inspected closely for any increase in scoring, cracking or thinning beyond the advisory’s current description; a pulsating pedal, increased stopping distances or a high‑pitched squeal under moderate braking would corroborate further degradation. The near‑side front tyre’s cut, while not yet reaching the ply, warrants a visual check for sidewall bulging or tread loss that could accelerate failure, especially under high‑speed or wet conditions. The light oil misting noted on both rear shock absorbers points to seal wear – listen for a soft thudding or excessive bounce over bumps and feel for uneven damping; any noticeable oil on the shock bodies or under the boot would indicate the seals are nearing the point of leakage. Given the advisory trend, budgeting for rear brake disc refurbishment or replacement in the near term is prudent, as is planning for a tyre replacement should the cut progress. Monitoring the rear shock absorbers for increased oil leakage or loss of ride quality will help avoid unexpected suspension repairs. A thorough test‑drive that includes firm braking, cornering at moderate speed and a run over a speed‑bump will reveal whether the current wear levels are merely advisory or are already affecting the vehicle’s dynamic behaviour.