2016 Mercedes-Benz S-Class 2.1L Electric diesel · BU16 ZTL

Recurring brake component wear and recent lighting system faults define the mechanical profile of this vehicle, which most recently passed its MOT on 22 June 2026. The braking history shows a progressive trend of deterioration, moving from advisories regarding rear brake disc pitting and scoring in 2024 and 2025 to a major failure in June 2026 due to significantly worn rear brake discs. While the vehicle passed the subsequent test a week later, the advisories for both front and rear brake disc wear and an intermittent lighting system fault on the dashboard remain active. This pattern suggests that while immediate safety failures are being addressed, the braking system is currently in a state of ongoing wear. The recorded mileage of 184,138 miles indicates a high-intensity usage pattern for a ten-year-old vehicle, averaging approximately 18,414 miles per year. This level of annual accumulation is significantly higher than the UK average and implies that the vehicle has been subject to consistent, heavy road use. Mechanically, this high mileage increases the likelihood of accelerated wear on consumable components and structural elements. The frequency of the tests, including a failure in mid-2023 for illegal tyre tread depths, aligns with a vehicle that is driven regularly and potentially pushed through various driving environments, necessitating frequent attention to tyres and braking hardware. A prospective buyer should pay close attention to the braking system during a test drive to ensure the recent repairs have addressed the underlying issues. Given the history of worn discs and thin pads, listen for any rhythmic grinding or squealing noises during deceleration, which could indicate metal-on-metal contact. Check for any pedal judder or vibration through the brake pedal when applying pressure at motorway speeds, as this can be a symptom of warped or unevenly worn discs. Furthermore, the advisory regarding an intelligent lighting system fault on the dashboard should be investigated; observe the instrument cluster for any recurring warning lights and ensure that all exterior lighting functions, including adaptive or automatic features, operate without flickering or failure. Beyond the braking and lighting systems, the high mileage necessitates a thorough inspection of the suspension and drivetrain. While no specific suspension defects were recorded in the recent MOT history, the high annual mileage suggests that components such as control arm bushes, coil springs, and shock absorbers may be nearing the end of their service life. On the test drive, listen for knocks, clunks, or hollow thuds when driving over uneven surfaces or speed bumps, which would indicate worn suspension linkages. Additionally, monitor the steering for any pulling to one side or excessive play in the wheel, which could stem from the high usage levels documented over the vehicle's lifetime.