2021 Mercedes-Benz CLS 1.9L Diesel · ME21 SAA

The most recent MOT test conducted on 16 January 2026 resulted in a pass, but the report indicates a shift in the vehicle's maintenance profile. While the previous two years showed minimal issues, the latest inspection has introduced several advisories related to the suspension and braking systems. This suggests a trend where the vehicle is moving from a period of peak mechanical health into a phase of scheduled wear-and-tear replacement. The presence of multiple advisories in a single test indicates that several components are reaching the end of their reliable service life simultaneously, requiring closer scrutiny from a prospective buyer. The recorded mileage of 57,038 miles over a five-year period represents an average annual usage of approximately 11,400 miles. This is considered standard for a vehicle of this type and suggests regular, consistent use rather than infrequent or excessive driving. This level of mileage is mechanically beneficial as it helps prevent the degradation of rubber seals and the seizing of brake components often seen in low-mileage vehicles that sit idle. However, at this stage of the vehicle's life, the accumulation of mileage means that consumables such as suspension dampers, brake discs, and pads are naturally entering a period of increased wear and potential failure. A critical area for inspection is the rear suspension, as the MOT noted light oil misting on both the nearside and offside rear shock absorbers. This is a sign of seal degradation and indicates that the dampers are beginning to leak. On a test drive, you should pay close attention to the vehicle's handling over uneven surfaces; any excessive bouncing, oscillation, or audible clunking from the rear may indicate that the damping capability is compromised. Additionally, the advisory regarding pitted and scored front brake discs, alongside thinning rear inner brake pads, signals that the braking system requires imminent attention. You should listen for any grinding noises or feel for any pedal pulsation or shuddering during deceleration, which are classic symptoms of worn or unevenly worn discs. Before proceeding with a purchase, I recommend requesting evidence of recent brake servicing to see if the discs and pads have already been addressed. If not, you should factor the cost of a complete brake overhaul into your negotiation. Furthermore, ensure that the under-cover mentioned in the advisories is correctly installed and undamaged, as its role in protecting the underside from road salt and debris is essential for maintaining the structural integrity and cleanliness of the engine bay. Verifying the service history for any recent fluid changes or suspension work will provide further assurance of the vehicle's ongoing roadworthiness.