2021 Mercedes-Benz EQC 400 AMG Line 4MATIC Electric · LM71 HHS

The most recent DVSA MOT test on 6 December 2025 resulted in a clean pass with no recorded defects or advisories, indicating that at the point of test the vehicle met all statutory roadworthiness requirements. The prior test on 3 December 2024 shows a slightly more complex picture: while the same rear tyre advisory was issued alongside a pass, a separate failure was also recorded on that date for two major defects relating to nearside and offside front tyres with cuts deep enough to reach the ply or cords. These were clearly addressed prior to the subsequent pass, as the 2025 test returned no defects. Overall, the trend is one of stable compliance once the tyre issues were rectified, with no structural, braking, suspension, lighting, or exhaust concerns recurring across the available history. With around 23,648 miles recorded over approximately five years, annual usage is around 4,730 miles, which is notably low for a vehicle of this age. This low annual mileage suggests either limited regular use or extended periods of standing, both of which carry distinct mechanical implications. Low-mileage electric SUVs such as the EQC are particularly susceptible to issues arising from inactivity rather than wear, including brake disc corrosion and caliper seizure due to infrequent application of the friction surfaces, 12V auxiliary battery degradation from shallow discharge cycles, potential coolant and brake fluid deterioration from calendar ageing rather than use, and tyre perishing from prolonged static loading. Conversely, the relatively gentle duty cycle is unlikely to have placed significant wear on the suspension, drive units, or high-voltage battery degradation beyond normal expectations, provided the unit has been stored and charged appropriately. Given the clean 2025 result, specific buyer guidance should focus on age- and inactivity-related condition checks rather than chasing the historic tyre defects. On a physical inspection, examine all four tyres for sidewall perishing or crazing, checking the date of manufacture codes on the sidewalls and confirming none are older than roughly six years, as the previous rear edge wear advisory suggests the geometry or inflation regime may merit verification. Inspect the brake discs visually for surface corrosion and test for binding by ensuring each wheel rotates freely when unladen, listening for any scraping or grinding on a test drive that could point to seized caliper pistons or pads seized in their carriers. The brake fluid should be considered due for renewal based on time rather than mileage, and the cabin and underbonnet should be inspected for evidence of fluid leaks or perished hoses consistent with a five-year-old vehicle. A test drive should be used to listen carefully for suspension clonks or knocks over speed humps and uneven surfaces, which would indicate perished or hardened anti-roll bar bushes, top mounts, or coil spring seats, all of which deteriorate with age regardless of mileage. Verify the operation of all drive modes and four-wheel-drive systems where applicable, ensuring smooth torque delivery and absence of warning messages on the instrument cluster. Check the 12V auxiliary battery state of health, particularly if the vehicle has stood for long periods, as a failing auxiliary battery can cause a cascade of electrical faults on modern Mercedes-Benz platforms. Finally, confirm the high-voltage battery state of health via the trip computer or a dealer-level diagnostic, verify that the charging cable and port are undamaged, and ensure the service book contains evidence of the EQC-specific inspections at the correct intervals, including the brake fluid, coolant, and cabin filter renewals that fall due on a time basis.