2021 Mercedes-Benz G 4.0L Petrol · K4 NES

This Mercedes-Benz G has demonstrated a stable and clean roadworthiness record over the past year, with both its 2024 and 2025 MOT tests passing without any defects or advisories. The October 2025 test at 21,175 miles confirms the vehicle remains in sound mechanical condition, adhering to DVSA standards for emissions, brakes, lights, and structural integrity. The absence of recurring advisories or failures suggests that routine maintenance has been consistent, at least in the areas covered by the MOT. However, the limited frequency of tests—only two in the last 12 months—means there are gaps where issues could have developed without official scrutiny. The vehicle’s mileage of 21,175 over five years is unusually low, averaging just 4,235 miles annually, which is well below the UK fleet average for its age. This could indicate infrequent use, extended periods of inactivity, or even potential odometer discrepancies. The jump from 6,690 miles in October 2024 to 21,175 miles in October 2025 suggests a significant mileage accumulation in the past year, though still modest by most standards. Without additional service records, it’s impossible to verify whether this uptick correlates with regular maintenance or sudden increased usage. Buyers should treat the low mileage as a potential red flag for underuse, which might mask hidden wear or neglect in less frequently checked components. Given the clean MOT history, a buyer should still prioritise an independent inspection of key wear items not always covered by the test. Focus on the suspension—particularly the coil springs, anti-roll bars, and bushings—since low-mileage vehicles can still suffer from age-related degradation, especially if stored in damp conditions. The rear brakes should be checked for binding calipers or uneven disc wear, as Mercedes-Benz models are prone to thermal retention issues. Exhaust emissions, while passed, may benefit from a pre-purchase diagnostic to ensure no underlying engine or catalytic converter inefficiencies have developed during the recent mileage surge. Structural corrosion, though uncommon in this model, should be inspected in high-stress areas like the chassis rails and wheel arches, given the vehicle’s age. Tyre condition and tread depth are also critical, despite not being flagged in the MOT, as uneven wear could indicate alignment or suspension faults.