2013 Ford Focus 1.6L Diesel · FD13 YCL

A recurring pattern of corrosion-related advisories on the rear suspension and subframe forms the defining mechanical story of this 2013 Ford Focus, even though the most recent test on 28 April 2026 returned a clean pass with no recorded defects. The earlier 2025 test recorded that the rear sub-frame, both rear suspension arms, and the coil springs had all developed surface corrosion significant enough to be flagged, while the 2024 test went further with pre-failed advisories for surface corrosion across the entire rear axle and suspension assembly, plus specific rust noted on the nearside rear coil spring and offside front coil spring. The 2024 test also failed outright on both rear outer direction indicators showing an incorrect colour, emitting more white light than the prescribed yellow. None of these items have recurred as failures in the 2025 and 2026 results, but the underlying chassis and suspension corrosion has clearly been building for at least two testing cycles, and the absence of a fresh advisory does not mean the metal has been restored; it simply means it has not yet deteriorated into the prescribed failure category. The recorded mileage of 107,889 miles across approximately thirteen years equates to around 8,299 miles per year, which is broadly typical for a vehicle of this age. There are no extended multi-year gaps in the MOT history, suggesting the car has remained in regular use rather than being laid up for long periods, although the absence of a test for the 2025-2026 cycle prior to April 2026 indicates a short interval between tests. The annual accumulation is consistent with mixed urban and longer-distance use, which is generally favourable for components such as the clutch, brake discs, and exhaust system, as these are less prone to the surface corrosion that affects cars used exclusively for short trips. The recorded odometer reading at each test should be cross-checked to ensure consistency and to confirm there are no unexplained gaps or rapid jumps. For a prospective buyer, the rear suspension and subframe corrosion flagged repeatedly between 2024 and 2025 is the primary area requiring physical inspection. On a ramp or over a pit, examine the rear subframe mounting points, both rear lower suspension arms, and the coil springs for any flaking, scaling, or perforation of the metal, paying particular attention to the nearside rear and offside front coil springs where rust was specifically recorded. On a test drive, listen for clonks or knocks from the rear suspension over uneven surfaces, speed bumps, and during sharp direction changes, as corroded bushes and spring seats can produce audible impact noises once the surface protection has broken down. Check for any wandering at the rear end or a feeling of vagueness over undulations, which can indicate that suspension arm bushes have deteriorated to the point of allowing movement beyond design tolerances. Also worth verifying in person is the condition of the rear direction indicators, which failed in 2024 for incorrect colour, as aftermarket LED or tinted bulb replacements are a common cause of this defect and may have been refitted before the subsequent tests. Inspect both rear lamp units to confirm the lenses are not faded, smoked, or replaced with non-standard items, and verify that the bulbs emit a defined amber rather than a washed-out white glow. Given the age and mileage, the brake discs and pads, front suspension components, and exhaust system should be examined for wear commensurate with 107,000 miles, and a thorough underbody inspection is advisable to confirm that the corrosion flagged on the rear assembly has not progressed into structural members. A pre-purchase inspection by a technician familiar with Ford Focus chassis condition would be a prudent step before committing to purchase.