2020 Mercedes-Benz GLC 300 AMG Line DE 4MATIC A 1.9L Electric diesel · KM70 KKU

The most recent DVSA examination on 12 June 2026 returned a clean pass with no defects or advisories recorded, and this follows a similarly unblemished pass on 8 September 2025. The earlier test on 23 September 2024 also passed but carried two advisories, one concerning a nearside front outer tyre worn close to the legal limit and showing edge wear, and another noting slight play in an offside front suspension arm ball joint. Because both advisories have not reappeared on subsequent tests, it suggests that remedial attention was likely given, either through tyre replacement or rotation and replacement of the worn suspension component. Overall, the maintenance trajectory appears stable and well-managed, with no recurring or escalating defects visible in the recorded history. With a recorded odometer reading of 40,681 miles over approximately six years of service, this GLC 300 has averaged around 6,780 miles annually, which sits squarely within the typical usage band for a premium mid-size SUV of this age. The mileage progression between tests indicates consistent rather than sporadic use, which is mechanically favourable as it implies regular fluid circulation, drivetrain loading, and component warm-up cycles. There are no extended gaps suggesting prolonged standing, which can otherwise promote brake disc corrosion, caliper seizure, and deterioration of perishable items such as tyres and the 12V battery. Equally, the mileage is not so high as to raise immediate concerns over major mechanical wear, and the recorded annual rate is unlikely to have placed excessive strain on the engine, automatic transmission, or 4MATIC drivetrain within this period. Despite the clean current MOT status, a prospective buyer should still conduct a thorough physical inspection given the vehicle's age and the previous advisories. On a test drive, pay particular attention to the front suspension: listen for any clonks, knocking, or rattling from the offside front over speed humps, uneven road surfaces, and during full-lock低速 maneuvering, as these are classic symptoms of worn ball joints or control arm bushes returning. Likewise, inspect the front tyres closely for uneven inner or outer edge wear, which could indicate suspension geometry issues, camber misalignment, or remaining ball joint play even if a new tyre has been fitted. Uneven tyre wear across the axle would suggest the underlying suspension issue has not been fully rectified, and a four-wheel alignment check would be prudent to confirm. Beyond the advisory-related items, a six-year-old Mercedes-Benz of this mileage warrants attention to age-related degradation regardless of MOT outcomes. Tyre sidewalls should be examined for perishing or cracking, particularly on the rear axle, and the production date code on each tyre verified as being within an acceptable age range, as the previous advisory hints that the nearside front may have been replaced. Inspect the brake discs for any signs of lipping or corrosion around the outer edges, and confirm the calipers are releasing cleanly without binding, which can manifest as a pulling sensation under light braking. The 12V battery should be load-tested, as Mercedes auxiliary batteries and main starter batteries in this era are known to fail without warning, particularly on vehicles used for short journeys. Finally, verify that the digital service book or accompanying service invoices document timely replacement of the engine oil, transmission fluid, brake fluid, coolant, and four-wheel-drive system oil within the manufacturer's specified intervals, as calendar-based fluid degradation is just as significant as mileage when assessing a six-year-old luxury vehicle.