2020 Mazda CX-30 2.0L Petrol · NK70 OND

The 2020 Mazda CX-30 presents a stable but mechanically ageing roadworthiness profile as of its most recent MOT on 12 September 2025 at 47,969 miles. The vehicle passed, yet the tester flagged a light oil misting on the offside rear shock absorber alongside pitted rear brake discs and thin rear brake pads on both sides. These are not immediate failures, but they signal the onset of wear that typically accelerates. Comparing this to the 2024 test, the rear braking components appear to have deteriorated noticeably within a single 12-month interval, suggesting the car may have been subjected to heavier use or prolonged standing that accelerated corrosion on the disc faces. The mileage progression tells a clear story of changing ownership patterns. Between the 2023 test at 25,391 miles and the 2024 test at 35,715 miles, the car covered 10,324 miles in 12 months, a sharp increase from the prior annual average of roughly 8,000 miles. Then, from September 2024 to September 2025, the odometer moved only from 35,715 to 47,969, a jump of 12,254 miles. This spike in the most recent year, combined with the sudden appearance of pitted rear discs and a shock absorber misting, points to a period of sustained motorway or long-distance driving without commensurate attention to the braking system. The overall annual average of approximately 7,995 miles remains typical for a six-year-old vehicle, but the uneven distribution across the last two years is the key indicator here. A buyer inspecting this car in person should focus on the rear suspension and braking assembly. The pitted rear discs noted in September 2025, paired with thin pads, suggest the rear calipers may be dragging or the discs have been standing idle long enough to develop surface corrosion that has eaten into the friction faces. The offside rear shock absorber oil misting, even if classified as light, warrants a close visual check for weeping seals and a bounce test to confirm damping effectiveness. The nearside front lower suspension arm inner rear bush, flagged as worn in September 2024, should be re-examined for any progression into excessive play, as this directly affects steering precision and tyre wear. The recurring tyre advisories across all three tests, cracking and perishing on all four tyres noted as recently as September 2024, indicate either prolonged UV exposure from outdoor parking or a previous owner deferring replacement of ageing rubber. All four tyres should be checked for date codes and sidewall integrity, particularly if the car has been sitting for extended periods. The front brake discs flagged as worn in 2024, though not excessively lipped, should also be measured for thickness against manufacturer minimums. Overall, the record reflects a vehicle that has been driven more aggressively in its most recent year while receiving only cursory attention to its wearing components. A pre-purchase inspection covering the rear shock absorbers, rear brake caliper slide pins, and suspension bushings would be a prudent investment before committing.