2017 Mercedes-Benz A-Class 1.5L Diesel · ST67 CFF

The latest MOT outcome recorded on 2026-01-09 was an initial fail classified as Dangerous due to an offside front tyre with tread depth below the legal 1.6mm minimum, followed immediately by a pass on the same date once rectified. No further advisories or defects were noted at this most recent assessment. Reviewing the four most recent test cycles, the maintenance trend is broadly acceptable but punctuated by isolated electronic and tyre wear failures in 2025 and 2026. The 2025 fail concerned an illuminated engine malfunction indicator lamp and an electronic stability control warning lamp, both indicating drivetrain or sensor-related faults, while the 2026 dangerous defect centred on tyre condition. Earlier tests from 2022 through 2024 returned clean passes with only a single advisory in 2021 for thinning front inner brake pads. Overall, the pattern suggests a vehicle that has been conscientiously presented for testing but has experienced intermittent electronic warning lamp illumination and consumable wear that warrants targeted inspection before purchase. Recorded mileage stands at 54,057 miles across approximately nine years, equating to an annual average of around 6,006 miles, which is broadly typical for a vehicle of this age. There are no extended gaps in the recorded mileage progression suggesting long periods of standing, nor any sudden spikes indicating rapid accumulation. This average usage profile generally implies moderate wear on major mechanical components, with brake discs, pads, tyres, and suspension items experiencing typical service intervals. The relatively modest annual mileage does, however, mean that age-related degradation of polymers, rubbers, and fluids should be considered alongside straightforward wear, as calendar-based deterioration occurs regardless of distance covered. Regarding the tyre failure recorded on the most recent test, prospective buyers should carefully inspect all four tyres plus the spare for age-related sidewall perishing, cracking, and bulges, as Mercedes-Benz specification tyres fitted to A-Class models can deteriorate from UV exposure and ozone even at modest mileages. Confirm that replacements were of correct size and load rating, and verify whether a full set was renewed or only the offending tyre, as mismatched tread depths across an axle can affect stability control calibration. On a test drive, listen for any brake shudder or pulsation through the steering wheel during moderate deceleration, which would suggest disc warping commonly seen on vehicles that have experienced periods of light use followed by heavier braking demands. Also pay attention to any binding or dragging sensation when releasing the accelerator, which may indicate seized caliper slides or sticking pistons from infrequent use. The 2025 advisory defects relating to engine MIL and electronic stability control warning lamps warrant particular attention, as intermittent sensor faults on the A-Class are frequently traced to degraded crankshaft or camshaft position sensors, oxygen sensors, or steering angle sensor calibration drift following battery disconnection. During inspection, verify that any diagnostic trouble codes have been fully cleared and that the fault has not simply been suppressed, and ask for evidence of rectification work. Additionally, given the 2021 advisory for thinning front inner brake pads, confirm with the seller whether pads and discs were subsequently renewed, and inspect pad material thickness and disc lip formation directly. Finally, although not recorded as defects, a nine-year-old vehicle with this mileage profile demands verification of time-based servicing: brake fluid should have been renewed within the last three years regardless of mileage, coolant system integrity and age should be assessed, the 12V battery health tested under load, and the condition of suspension bushes, coil springs, and exhaust mounts evaluated for cracking and corrosion consistent with age rather than purely distance.