2019 Mercedes-Benz GLC 1.9L Diesel · RO69 NWJ

The 2019 Mercedes-Benz GLC presents a mixed maintenance picture, with the most recent MOT test on 16 February 2026 at 66,163 miles revealing multiple active wear items that suggest deferred attention. While the vehicle passed, the tester flagged critically low rear inner brake pads and thin front pads alongside worn and pitted brake discs on all four corners. A slight play was also recorded in the front lower suspension arm ball joint track control arm. These are not minor advisories. Low pads and pitted discs indicate the braking system has been run beyond its serviceable window, and the suspension play points to joint wear that typically accelerates if left unaddressed. The maintenance trend is worsening compared to the clean bills of health recorded in 2022 and 2023. The mileage accumulation is broadly typical for a seven-year-old vehicle at roughly 9,452 miles per year. The record shows a notable gap between the November 2022 test at 37,328 miles and the November 2023 test at 49,712 miles, representing approximately 12,384 miles covered in that twelve-month window. A further 7,658 miles were added between November 2023 and December 2024, followed by a more subdued 8,793 miles between December 2024 and February 2026. The data is consistent and shows no obvious anomalies, though the relatively modest recent mileage raises the question of whether the vehicle spent extended periods stationary, which can contribute to disc corrosion and the pitting noted during the latest inspection. A buyer should prioritise a thorough inspection of the braking system. The February 2026 test recorded worn and pitted discs on both axles, and the rear inner pads were described as very low. Uneven inner pad wear on this model can indicate binding calipers or seized guide pins, which a competent technician should verify on a lift. The front lower suspension arm ball joint play is another area demanding physical checks, as excessive play in this joint affects steering precision and tyre wear patterns. Inspect the tyre sidewalls carefully given the 2023 failure for a structural lump on the nearside rear, and confirm whether the nail puncture noted in December 2024 was properly repaired with a mushroom plug or a demountable repair. The brake pad warning illuminated on the dashboard during the most recent test, yet the tester could not confirm whether the pads had reached the wear indicator. This ambiguity suggests the warning may have been intermittent or that the sensor itself is at fault. A buyer should verify whether the warning remains active and, if so, treat it as an urgent service item. Overall, the vehicle appears mechanically sound in its core structure, but the braking and suspension components require immediate attention before the car can be considered properly maintained.