2012 Mercedes-Benz CLS 3.0L Diesel · LP12 UOT

The vehicle demonstrates stable roadworthiness with no defects recorded in its most recent January 2024 MOT at 235,848 miles. The prior tests from 2022 and 2020 also passed without issues, indicating consistent maintenance. However, a December 2021 failure at 211,396 miles—despite no defects being listed—suggests a possible administrative error or unrecorded corrective action. The absence of recurring mechanical faults in subsequent tests implies the car has been well-maintained, though high mileage raises concerns about component longevity. The vehicle’s 235,848 miles over 14 years equate to an average of 16,846 miles annually, significantly above the UK’s typical 7,000–8,000 miles per year for similar-aged vehicles. Notable mileage spikes include a 15,000-mile increase between 2020 (196,206 miles) and 2021 (211,396 miles), followed by a 17,554-mile jump to 228,950 miles by December 2022. These rapid accumulations suggest heavy usage, which may accelerate wear on brakes, suspension, and drivetrain components. The lack of defects in most MOTs does not preclude underlying issues, particularly given the high mileage and the unexplained 2021 failure. A buyer should prioritise inspecting the suspension system for worn bushes or coil springs, as high mileage often leads to degradation. Brake components, including discs and calipers, should be checked for uneven wear or corrosion, given the vehicle’s age. The exhaust system and structural integrity—particularly around the chassis and body panels—require scrutiny, as corrosion can develop in high-mileage vehicles. While the MOT history shows no immediate red flags, the combination of age, mileage, and the 2021 anomaly warrants a thorough pre-purchase inspection by a qualified mechanic.