2014 Mercedes-Benz CLA 2.1L Diesel · LL64 KWF

The most recent MOT test on the 2014 Mercedes-Benz CLA, conducted on 2025-11-24, resulted in a pass with two advisories—both relating to the rear coil springs, which have been identified as corroded on both the nearside and offside rear suspension elements. This follows a consistent pattern of passing MOTs since 2023, with the only previous failure occurring in 2022 for a non-functional windscreen washer, which is a straightforward and easily rectifiable issue. The advisories on the coil springs, however, suggest a recurring mechanical concern that warrants attention, as corrosion in coil springs can lead to progressive loss of ride height, uneven load distribution, and potential fatigue if left unaddressed. The absence of any failures or critical defects in the intervening years indicates a generally stable maintenance record, but the corrosion advisories indicate that the suspension system has been exposed to moisture or poor lubrication over time, which is particularly critical given the vehicle’s age and mileage. The recorded mileage of 98,335 miles for a vehicle aged approximately 12 years represents an annual usage rate of around 8,195 miles, which is within the expected range for a car of this age and class. This level of mileage is neither exceptionally high nor unusually low for a Mercedes-Benz CLA, though it does not suggest significant overuse. However, the gaps between MOT tests—particularly the absence of tests in 2023 and 2024—could imply periods of prolonged inactivity, which may have contributed to issues such as standing corrosion on the coil springs or brake system degradation. Prolonged standing can exacerbate problems like brake disc corrosion, binding calipers, or fluid degradation in hydraulic systems, so it is essential to consider whether the vehicle has been stored under conditions that could accelerate wear. Given the advisories on the rear coil springs, the buyer should conduct a thorough inspection of the suspension system. Visually check for signs of further corrosion or structural compromise on the springs, and listen for any unusual noises—such as clunks or rattles—when driving over bumps or uneven surfaces, as these may indicate loose suspension components or damaged suspension bushes. The worn and cracked rear tyres from the 2022 MOT should be replaced immediately, as the tread depth and sidewall damage pose safety risks, particularly on wet or uneven roads. Additionally, the front tyres from the 2021 and 2022 MOTs show significant edge wear and small cuts, suggesting uneven load distribution or poor alignment, which may have contributed to the coil spring corrosion. A professional alignment and tyre replacement should be prioritised to address these issues. For the brake system, the advisories on the front brake discs indicate that they are worn but not severely compromised, though the pitting and scoring suggest ongoing friction with the brake pads. This could lead to uneven brake pad wear or potential brake shudder if the discs become more severely damaged. The rear service brake fluctuating condition is less critical but still worth addressing, as inconsistent brake performance can affect stopping distance and driver confidence. The buyer should verify that the brake fluid is clean and at the correct level, as brake fluid absorbs moisture over time, which can reduce hydraulic efficiency and accelerate corrosion in brake components. Finally, given the vehicle’s age and the advisories, it is advisable to have the entire suspension and brake systems inspected by a qualified mechanic to confirm the extent of the corrosion and wear, and to plan for any necessary repairs or replacements before they become more costly or dangerous.