2003 Ford Focus 1.4L Petrol · WR03 PRZ

A clear pattern of structural and suspension corrosion has defined this 2003 Ford Focus throughout its recorded MOT history, with the most recent test on 9 December 2021 passing but flagging no fewer than five advisories, four of which relate directly to chassis integrity. The offside rear coil spring, rear sub-frame, nearside rear suspension arm, and rear body structure within 30cm of a mounting were all recorded as corroded but not seriously weakened, mirroring the same areas of concern noted in earlier tests. A Major failure on 23 December 2020 demonstrates that the corrosion is progressive rather than static, as the offside rear lower suspension arm and inner mounting prescribed area were deemed seriously weakened and significantly reducing structural strength on that occasion. The headlamp and position lamp failures recorded at the same 2020 test are routine electrical items, but they indicate the vehicle was not in a fully roadworthy condition at that point. Across the five recorded tests since 2016, corrosion advisories for suspension components and brake pipes appear repeatedly, which points to an ongoing deterioration of the underbody rather than a one-off concern. The recorded mileage of 108,369 miles across roughly 23 years equates to an average of around 4,712 miles per year, which is notably low for the vehicle's age and suggests periods of either light use or extended standing. There is a near-four-year gap between the June 2016 test and the June 2019 test with no recorded mileage progression shown, which is consistent with the car being off the road or unused for a significant stretch, and another large gap between December 2020 and December 2021. Low annual mileage and standing periods can accelerate corrosion on suspension components, brake pipes, and subframes due to moisture retention and lack of regular movement to displace surface rust, which aligns directly with the chronic advisories observed on this Focus. Given the documented corrosion history, a prospective buyer should physically inspect the offside rear lower suspension arm, its inner mounting area on the sill and arch, the rear sub-frame, and both front to rear brake pipe runs, paying particular attention to any bubbling, flaking, or perforation of the metal rather than just surface discoloration. On a test drive, listen for clonks or knocking from the rear suspension over uneven surfaces, which could indicate worn suspension arm bushes as flagged in 2021, and feel for any vagueness or knocking through the steering wheel that might point to further deterioration. The coolant leak advisory in both 2021 tests and the 2020 failure warrants a thorough check of the coolant expansion tank, hoses, and visible water pump area for fresh staining or dampness before purchase. Finally, the brake pipes were flagged as corroded and covered in grease in 2021, so it is important to confirm whether they have since been replaced or treated, as heavily corroded brake lines represent a safety-critical risk on a 23-year-old vehicle with this corrosion profile.