2021 Mercedes-Benz CLA 2.0L Petrol · AKZ 411

The latest MOT test on the 2021 Mercedes-Benz CLA, conducted on 2026-02-20, resulted in a clean pass with only a minor front windscreen damage that does not impair the driver’s visibility. Despite this, the vehicle’s MOT history reveals a pattern of recurring issues that warrant careful consideration. The most critical failures occurred in 2025, when the tyres were found to have severe cuts reaching the ply or cords, necessitating immediate replacement—a major defect that would have rendered the vehicle unsafe if not addressed. While the subsequent MOT in 2026 shows no further tyre-related failures, the previous incidents suggest a history of significant tyre wear, likely accelerated by either aggressive driving, underinflation, or poor maintenance. The presence of multiple advisories, such as brake binding and front wiper judder, further indicates underlying mechanical wear that may have been overlooked or dismissed as minor until critical points were reached. The recorded mileage of 49,733 miles for a vehicle aged five years represents a usage rate of approximately 9,947 miles annually, which is within the expected range for a modern car of this class, particularly if it has been used for both personal and practical purposes. However, the MOT history does not provide explicit details on the periods between mileage increments, so it is impossible to determine whether the vehicle has been driven at a consistent rate or experienced prolonged periods of inactivity. Prolonged standing can accelerate corrosion in brake components, such as discs and calipers, leading to binding or reduced braking efficiency, which aligns with the 2025 advisory of offside rear service brake binding. Additionally, standing can also cause fluid degradation in the brake system, hydraulic fluid in particular, which may have contributed to the observed binding over time. If the vehicle has been driven at a lower annual rate than the recorded mileage suggests, it could mean more wear on consumables like brake pads, suspension components, and internal engine parts, as these systems are less frequently cycled. To proceed with a thorough inspection, the prospective buyer should prioritise checking the tyre condition beyond what the MOT records indicate. The previous failures highlight that the tyres have been subjected to severe wear, so any remaining tread should be closely examined for signs of further damage, such as cord exposure or uneven wear patterns that could suggest alignment or suspension issues. On a test drive, listen for unusual noises from the brakes, particularly around the offside rear, where binding was noted. A shudder or pulsation during braking could indicate warped discs or internal brake component failure, while a spongy pedal may signal air in the hydraulic system or failing brake master cylinder. Inspect the brake discs and calipers for corrosion, rust, or binding—standing vehicles are particularly prone to caliper binding due to moisture ingress. Additionally, verify the condition of the suspension components, including coil springs, shock absorbers, and suspension bushes, for signs of wear, clunks, or excessive play, as these can exacerbate tyre wear and contribute to the juddering front wipers observed in previous MOTs. For fluid and system checks, the buyer should inspect the brake fluid reservoir for contamination or low levels, as standing can accelerate fluid degradation. Check the engine oil, transmission fluid, and coolant for any signs of contamination or degradation, particularly if the vehicle has been in use for extended periods without servicing. The 12V battery should be tested for voltage and overall health, especially if the vehicle has been left unused for significant stretches, as battery failure can lead to electrical system issues and affect the MOT’s electrical component checks. Finally, a visual inspection of the exhaust system for leaks or corrosion is advisable, though the MOT history does not show emissions-related failures. Given the vehicle’s age and usage profile, it is prudent to schedule a comprehensive service check within the next 12 months, focusing on fluid servicing, brake system inspection, and suspension component renewal if wear is detected. If the buyer is concerned about the brake binding history, a professional assessment of the brake calipers and hydraulic system should be prioritised to prevent future failure.