2009 Mercedes-Benz CLK 2.0L Petrol · W1 HUX

The most recent MOT tests on this 2009 Mercedes-Benz CLK, conducted just over a year ago on 2025-06-09, reveal a concerning pattern of repeated failures despite identical mileage readings. The vehicle failed twice in the same test cycle, yet both instances recorded zero defects—a discrepancy that suggests either a clerical error or a deliberate attempt to bypass proper inspection. The prior MOT history, spanning 2023 to 2024, shows consistent passes with no advisories, indicating stable mechanical condition during that period. However, the abrupt double failure in 2025 without explanation raises legitimate concerns about either undocumented issues or a lack of transparency in the testing process. Buyers should treat this as a red flag, particularly given the vehicle’s age and the rarity of such anomalies in MOT records. The recorded mileage of 45,718 miles over nearly 17 years equates to approximately 2,689 miles annually, which is unusually low for a vehicle of this age. This suggests prolonged periods of inactivity, which could accelerate degradation of components like suspension bushes, coil springs, and brake calipers due to static load stress. The gap between the 2024 and 2025 tests—just over a year—aligns with the expected MOT interval, but the identical mileage readings in the 2025 double test imply no significant usage between tests. Such stagnation may have allowed corrosion to develop in underbody areas, particularly around the sills, wheel arches, and exhaust system, where moisture retention is common. The lack of mileage progression also makes it difficult to assess wear on high-mileage components like timing belts or differential fluid, which may have degraded without regular service intervals. Given the MOT record’s inconsistencies, a prospective buyer should prioritise a thorough inspection of the suspension geometry, particularly the rear axle alignment and condition of the coil springs and bushes, as these are prone to silent deterioration over time. The repeated failures without recorded defects warrant scrutiny of the braking system, including rear caliper binding, disc thickness, and master cylinder function, as these are frequent causes of MOT rejections. Structural integrity should also be assessed for signs of corrosion in high-risk zones such as the subframe, exhaust mounts, and wheel arches, which may not have been visible during the MOT but could compromise handling or emissions compliance. Additionally, verify the service history for evidence of fluid changes—particularly brake fluid, power steering, and differential oil—since these are critical for long-term reliability and are not typically inspected during an MOT. The absence of advisories in prior tests does not preclude latent issues, so a pre-purchase diagnostic focusing on these areas is essential.