2020 Mercedes-Benz GLC 300 AMG Line DE 4MATIC A 1.9L Electric diesel · RO70 KTN

The vehicle successfully passed its most recent DVSA MOT test on 24 October 2025 with zero recorded defects or advisories. Reviewing the complete MOT history reveals a perfectly clean record across all annual inspections since its first test in September 2023, with no advisories ever flagged for component wear, tyres, or braking performance. This demonstrates an exceptionally stable and pristine test history, indicating that the vehicle has been maintained to a high standard without suffering from obvious mechanical neglect or physical abuse. The recorded mileage of 30,127 miles over approximately six years equates to an average annual usage of just over 5,000 miles, which is considered very low for a premium diesel plug-in hybrid SUV. While low mileage reduces overall mechanical fatigue on major drivetrain assemblies, suspension control arms, and interior trim, it also indicates extended periods of inactivity or predominantly short journeys. Low-mileage vehicles of this nature require careful inspection for age-related degradation rather than standard high-mileage friction wear, as component deterioration can frequently occur through physical aging and environmental exposure rather than pure distance covered. Prospective buyers should focus on physical checks tailored to an infrequently driven vehicle. Inspect all four tyres for signs of sidewall rubber perishing, dry rot, or micro-cracking, as tread depth may appear generous while the rubber compound itself has hardened with age. Examine the brake discs through the alloy wheels for heavy surface pitting, deep corrosion, or ridge formation, which often develops when moisture sits on idle braking systems and can cause binding calipers or vibration under load. Additionally, given the complex plug-in hybrid architecture of this DE model, the health of the standard 12V auxiliary battery is critical, as a degraded 12V battery can trigger widespread electronic false alarms and prevent the high-voltage hybrid system from initializing properly. During the road test, pay close attention to the operational transition between the electric drive motor and the diesel engine, ensuring power delivery remains seamless without hesitation or drivetrain shudder from the 4MATIC all-wheel-drive system. Listen for any subtle creaks or knocks from the suspension bushes and coil springs, as rubber suspension components can dry out and harden over time even with minimal mileage. Finally, verify that all calendar-based service requirements have been meticulously carried out and logged, including time-sensitive engine oil flushes, brake fluid changes, and automatic transmission servicing, as low-mileage vehicles still require strict time-based maintenance regardless of distance travelled.