2016 Ford Focus 1.5L Diesel · CF65 AXT

A pattern of progressive rear suspension and subframe corrosion is the defining mechanical feature of this Ford Focus, with every MOT since 2024 flagging deterioration in these areas and the most recent test on 4 September 2026 confirming that the corrosion has now spread to both front and rear subframes, both rear upper suspension arms, both rear coil springs, and the rear anti-roll bar. While all advisories were recorded as not seriously weakened and the vehicle passed, the consistency and breadth of these items across consecutive tests indicates an accelerating corrosion issue rather than isolated wear. Earlier tests in 2021 and 2020 recorded no defects at all, so the rear-end corrosion is a relatively recent development that has accumulated quickly within the last three testing cycles. The single failure on 2 September 2024 was limited to a pair of direction indicators displaying the incorrect colour, a repairable electrical item, and all other concerns on that date were carried forward as advisories before the vehicle was presented again later the same day and passed. With 106,531 miles recorded against an approximate ten-year age, the Focus is running close to the expected annual mileage for its class, accumulating at roughly 10,650 miles per year based on the most recent odometer reading. There are no extended gaps in the testing record to suggest a long period off the road, and the consistent year-on-year attendance at test stations indicates the vehicle has been in regular service. That continuous usage does mean wear-sensitive items such as brake components, suspension bushes, and shock absorbers have been subjected to typical service loads, and the repeated advisories relating to rear brake disc wear and shock absorber damping efficiency are consistent with the mileage profile. Prospective buyers should pay particular attention to the rear suspension and underbody condition during any physical inspection. Given the advisories on both rear coil springs, both rear upper suspension arms, the rear anti-roll bar, and the subframes, it is advisable to place the vehicle on a ramp and visually inspect the extent of the corrosion, paying close attention to mounting points and bushing housings where rust commonly migrates into structurally significant areas. On the test drive, listen for clonking or knocking noises from the rear over uneven surfaces, which can indicate worn bushes or weakened spring seats, and feel for any excessive vertical movement or unsettled ride behaviour that could suggest the rear shock absorbers are continuing to deteriorate beyond their already noted reduced damping effect. The nearside rear shock absorber has been flagged in both 2024 and 2025 for reduced damping efficiency, so particular attention should be given to any continued bounce, wallowing, or poor body control over bumps. Brake feel should also be evaluated carefully given the recurring advisories on both rear brake discs since 2024, with attention to any judder through the brake pedal, uneven braking effort, or grinding sensations that may indicate the discs have now worn beyond the advisory threshold. The rear tyres have also been a recurring concern, with cracking and perishing flagged in 2022, 2023, and 2024, suggesting the vehicle may be subject to standing periods or storage conditions that accelerate rubber degradation independent of tread wear. Check all four tyres carefully for sidewall cracking and replace any that show signs of perishing, particularly if the vehicle has been standing for extended intervals between uses. Finally, a thorough inspection of the front subframe mounting areas is warranted given the new appearance of corrosion in this region on the 2026 test, as front subframe rust on a Focus of this age and mileage can develop rapidly once initiated and may necessitate closer monitoring at the next MOT.