2015 Mercedes-Benz CLA 2.1L Diesel · HT15 TNO

The 2015 Mercedes-Benz CLA shows a mixed but generally stable roadworthiness trend, though the most recent October 2025 MOT reveals two persistent issues that warrant closer scrutiny. The vehicle passed with advisories for worn front and rear brake discs—classified as non-serious but indicative of gradual deterioration—and a slight play in the near-side front suspension arm ball joint, a component critical for wheel alignment. While no major failures have occurred since 2023, the recurrence of suspension and brake concerns suggests these areas require proactive attention. The 2024 test also flagged worn, pitted brake discs and a front suspension rod ball joint, reinforcing that these are not isolated incidents but ongoing patterns. The absence of major defects in earlier tests implies the vehicle has been driven responsibly, but the lack of corrective action on these advisories raises questions about whether previous owners addressed them or deferred maintenance. Mileage progression suggests moderate usage without extreme wear patterns, averaging around 10,700 miles annually—a typical rate for a vehicle of this age. The largest gap between tests is between April 2023 (85,945 miles) and October 2023 (88,847 miles), a span of just 2,902 miles over six months, which could indicate either light usage or a temporary storage period. The most recent test in October 2025 shows 118,164 miles, meaning the vehicle has covered 9,156 miles since its last inspection—a rate that, while not excessive, falls within acceptable limits for a car of this vintage. The consistency of passing without major failures suggests the owner has maintained basic compliance, though the recurrence of advisories implies some areas have been neglected. A buyer should prioritise an independent inspection of the suspension system, particularly the front ball joints and associated components, as the MOT history consistently flags play in these joints. The front suspension arm and rod ball joints are critical for steering stability and wheel alignment, and their gradual wear could lead to uneven tyre wear or handling issues. Brake discs, both front and rear, have shown consistent wear and pitting, which may indicate inadequate cooling or prolonged use without servicing. While the discs are not yet at failure point, their condition should be verified for uneven thickness or cracks, as these could compromise stopping performance. Additionally, the rear brakes were noted in the 2025 test, so caliper binding or worn pads should be checked. Given the vehicle’s age and mileage, a thorough examination of the exhaust system for corrosion—especially at joints and mounts—and underbody components for rust is advisable, as these are common failure points in Mercedes-Benz models of this era.