2006 Ford S-MAX 1.8L Diesel · YP56 BDF

The defining mechanical story of this 2006 Ford S-MAX is a clear pattern of rear suspension and underbody corrosion beginning to take hold, compounded by a recent failure history for front-end steering components. Across the 2024 testing cycle, the vehicle was presented three times within a single week, failing on 22 July for a non-conforming rear number plate and an inoperative registration plate lamp, then again on 27 July due to an offside front outer track rod end with excessive play, before passing on 29 July once the steering defect had been rectified. The 2024 advisories are particularly significant: both rear coil springs are noted as corroded, both rear suspension arms show corrosion deemed not seriously weakened, and the nearside front lower suspension arm ball joint has slight play. A similar track rod end advisory was flagged as early as 2021, and slight play in an offside front lower track rod end recurred across 2023 and 2024, suggesting progressive wear in the front steering and suspension geometry rather than a one-off replacement. Mileage data is not recorded within the MOT history provided, so no direct comparison can be made against the vehicle's age or expected annual accumulation. What is evident from the test dates is a consistent annual MOT pattern, with tests recorded every July from 2021 through 2024, indicating the vehicle has remained in regular use and on the road throughout this period. There are no multi-year gaps that would suggest a prolonged period of storage, which is a positive indicator that standing components such as brake calipers, brake pipes, and the exhaust system have remained in active service rather than deteriorating through disuse. For a prospective buyer, the rear underbody corrosion noted in the 2024 advisories warrants close physical inspection. Both rear coil springs and rear suspension arms have been flagged for surface corrosion, and on a vehicle of this age corrosion can progress quickly once initiated. A thorough check from beneath the vehicle is essential, paying particular attention to the spring seats, the trailing arm mounting points, and the general condition of the rear axle subframe. On the test drive, listen for clonking or knocking noises from the rear over uneven surfaces, which would suggest the corroded springs are fracturing or the suspension arm bushes have loosened. The front end also demands attention: with track rod end play having been identified on multiple occasions, the steering should be checked for vagueness, looseness, or inconsistent self-centring, and any knocking transmitted through the front wheels over speed bumps should be investigated as a possible sign of further ball joint wear. The nearside front lower suspension arm ball joint with slight play, and the shock absorber noted as having light oil misting in 2023, are components that should be monitored closely as they are likely to deteriorate further. The exhaust system has also been a recurring concern, with a major leak from the middle pipe recorded as a failure in 2022 and a minor exhaust leak noted in 2021, indicating prior repair or replacement of sections. An oil leak, though not excessive, was flagged in both 2022 tests and warrants inspection of the engine and gearbox sumps for fresh seepage on the driveway or undertrays. Finally, the persistent advisories for cracking and perishing on both rear tyres across 2021, 2022, and 2023 suggest either prolonged use of ageing rubber or a storage environment that has degraded the sidewalls, and a careful check of the current tyres for age-related cracking, together with an assessment of ride quality over poor surfaces to evaluate the shock absorbers and spring condition, would be prudent before purchase.