2022 Mercedes-Benz GLC 300 AMG Line Prem + D 4M A 1.9L Diesel · KM22 KAA

The most recent DVSA examination on 17 April 2026 resulted in a pass, indicating that the vehicle was considered roadworthy at the time of test, although two advisories were recorded. The presence of an advisory for slight damage or fraying to the offside front seat belt webbing is worth noting, as this is a safety-critical item and any progression of the fraying will result in a failure at the next test. The advisory concerning wear, pitting, or scoring on the offside front inner brake disc suggests surface corrosion or light lipping, which is not uncommon on a vehicle of this age and mileage. Looking at the broader trend, the vehicle suffered a failure on 4 April 2025 with two major defects, namely an illuminated or inoperative engine management indicator lamp and a serious fluid leak from the nearside rear shock absorber, but it subsequently passed on 9 April 2025 following remedial work. The history therefore reflects a broadly stable maintenance pattern with no recurring repeat failures, though the seat belt and brake disc advisories should be monitored for deterioration. With 40,014 miles recorded over approximately four years, the vehicle has covered around 10,000 miles annually, which is broadly typical for a premium SUV of this type and does not suggest either excessive motorway use or prolonged standing periods. This level of usage is generally favourable for mechanical longevity, as it implies regular fluid circulation, consistent brake and clutch operation, and steady battery charging cycles. The mileage gap between the 2025 and 2026 tests is consistent with normal annual driving, so there is no indication of odometer inconsistency or extended periods off the road that could promote corrosion, perishing, or battery degradation. The most significant item to verify on inspection is the nearside rear shock absorber that was previously replaced under the major failure of April 2025. It is worth checking that the replacement unit is a genuine Mercedes-Benz or equivalent quality component, and that the mounting points and top mounts show no signs of fluid staining or weeping. On a test drive, listen for any clonking or knocking from the rear suspension over uneven surfaces, as this can indicate worn bushes or a failing damper. Given the diesel powertrain, the engine management lamp defect from 2025 also warrants attention; request evidence of the rectification work carried out and confirm that any diagnostic trouble codes have been cleared and have not reappeared. A live diagnostic scan prior to purchase is highly recommended to verify that the emissions system, including the diesel particulate filter and AdBlue injector, is operating correctly, as these are costly items on Mercedes-Benz diesel models. In addition to the items flagged on the MOT record, a prospective buyer of a four-year-old GLC with typical mileage should undertake several age-appropriate checks. Examine the tyres closely for any sidewall cracking or perishing caused by age rather than wear, as Mercedes OE tyres can deteriorate even with adequate tread depth. Inspect the brake discs for any significant lipping or binding, particularly given the advisory on the offside front, and check that the caliper sliders move freely. Verify the condition of the 12V battery, as Mercedes vehicles are sensitive to voltage drop and a weak battery can cause a cascade of electrical faults. Confirm that the vehicle has been serviced in accordance with the manufacturer's schedule, paying particular attention to the timing belt or chain service interval, brake fluid replacement, and any diesel-specific items such as the AdBlue system and fuel filter. Finally, check the bodywork and wheel arches carefully for any corrosion, as although Mercedes galvanise well, the AMG Line trim can trap dirt and moisture around the lower sills and arches.