2018 Mercedes-Benz A-Class 1.3L Petrol · 10 BJM

The mechanical narrative for this 2018 A-Class is dominated by a recurring pattern of brake-related advisories that have surfaced in three of the last four recorded MOT tests, alongside a single tyre defect noted at the most recent assessment. Across five tests spanning 2021 to 2025, the vehicle has never failed, but the rear axle components are clearly accumulating wear at a steady rate. The earliest rear brake disc advisories appeared in October 2024, flagging both nearside and offside rear discs as worn, and by the October 2025 test these had progressed to being described as pitted or scored, with the rear brake linings also noted as wearing thin. This represents a consistent rear-brake deterioration trend rather than an isolated observation, and a prospective buyer should treat the rear braking system as a near-term maintenance liability. The offside rear tyre deformity noted in 2025 is an additional item that warrants physical inspection, as out-of-shape tyres can point to suspension impact damage or issues with the wheel itself. Annual mileage accumulation sits at roughly 6,011 miles per year based on the 48,086 figure recorded at the 2025 test, which is broadly consistent with typical usage for an eight-year-old vehicle. The MOT testing has occurred at regular annual intervals from 2021 through 2025, with no significant gaps that would suggest extended periods off the road, meaning the recorded wear is representative of continuous light-to-moderate use. This relatively modest annual mileage tends to be kinder to major drivetrain components but does not shield the consumables flagged here, as brake discs and pads degrade through age-related corrosion and use cycles regardless of distance covered. There is no evidence in the records of any rapid mileage spikes or unusual odometer readings between tests. For a test drive and physical inspection, the rear braking system should be the primary focus. With both rear discs now recorded as pitted and scored, a buyer should listen for any grinding, squealing, or pulsing through the brake pedal under firm application, particularly from the rear axle, and feel for any tendency of the vehicle to pull sideways under braking. Inspect the rear discs directly for visible ridging at the outer edge, deep scoring across the friction surface, and any signs of corrosion pitting that has progressed beyond cosmetic levels. The rear brake pads should be measured for remaining material, as the advisory indicates they are wearing thin and may be approaching the point of requiring replacement. Given that both rear discs were already flagged in 2024 and have deteriorated further by 2025, budgeting for a full rear brake overhaul including discs and pads would be a prudent contingency. The offside rear tyre flagged as out of shape in the most recent test is an item that demands close visual and tactile examination, as tyre deformation can stem from impact damage, a manufacturing defect, or internal structural failure. Run your hand across the tread surface to detect bulges, uneven wear, or flat spots, and check the sidewall for any signs of cracking or impact damage. Additionally, inspect both front tyres closely, as the 2022 test noted edge wear on both front tyres close to the legal limit, and uneven wear patterns at the front can point to misalignment, worn suspension bushes, or damaged coil springs. On the move, listen for any clonking or knocking from the front suspension over uneven surfaces, particularly across speed bumps, and pay attention to steering precision, as any wandering or pulling to one side could indicate that the suspension geometry has been compromised. While the vehicle has never failed an MOT, the recurring nature of these advisories means a thorough inspection of the braking and suspension systems should be completed before purchase.