2017 Ford Focus 1.5L Diesel · PK17 AAY

The defining mechanical story of this 2017 Ford Focus centres on a single, isolated but serious tyre-tread failure on both front tyres in April 2023, flanked by otherwise clean pass certificates. The most recent test on 30 March 2026 returned a pass with no defects recorded, and the 2025 examination was similarly clean, indicating a stable roadworthiness trend over the last two cycles. The 2023 failure was categorised as Dangerous on both the nearside and offside front tyres for tread depth falling below the legal 1.6mm requirement, a defect that carries immediate prohibition risk. A separate advisory in 2024 flagged the offside rear tyre as worn close to the legal limit and worn on the edge, suggesting uneven or accelerated wear at the rear axle even after the fronts were replaced. Outside of these tyre-related items, there are no recorded advisories relating to braking components, suspension linkages, corrosion, exhaust integrity, or structural areas across any of the five tests on file. With 89,428 miles accumulated over approximately nine years, this Focus has covered around 9,936 miles annually, which sits within a typical usage band for a car of its age and class. The mileage progression between tests is consistent and shows no abrupt jumps or extended stationary periods, meaning the wear pattern on consumables and drivetrain components should reflect steady, predictable use rather than the heavier toll often associated with high-mileage motorway vehicles or the rubber degradation and brake corrosion seen on cars left idle for long intervals. A relatively even annual accumulation at this level generally allows for the standard replacement cycles on timing belts, brake fluid, and coolant that a Focus of this vintage would ordinarily require, without the elevated component fatigue often linked to extreme mileage figures. For a prospective buyer, the priority inspection area is the tyre setup and wheel alignment geometry. The 2023 dual failure and the subsequent 2024 advisory on the offside rear suggest the vehicle is prone to uneven or rapid tread consumption, which on a Focus commonly points to worn front suspension components, incorrect tracking, or compromised bushings allowing geometry to drift. On a test drive, listen for clonking or knocking from the front suspension over speed humps and uneven surfaces, and pay particular attention to whether the steering pulls to either side or sits off-centre, as either symptom can accelerate shoulder wear on tyres. Inspect all four tyres for uneven shoulder or inner-edge wear, and verify the manufacturing date codes, as the record indicates that replacement has been frequent at the front. The braking system and underbody should also be scrutinised given the mileage and the age of the vehicle. Although no brake-related advisories have been recorded, a nine-year-old Focus approaching ninety thousand miles is at the stage where original-equipment discs may be approaching their second or third skim, and caliper slide pins or guide bushes can begin to bind. On the test drive, feel for any judder through the brake pedal under firm application, which would indicate warped front discs, and listen for any grinding or scraping that might suggest worn pads. Under the vehicle, check the lower suspension arms, anti-roll bar drop links, and rear axle bushes for any perished rubber or play, as these are common wear items on this model at this mileage. Finally, examine the subframe mounting points and inner wheelarch areas for surface corrosion, a known vulnerability on Mk3 Focus models, ensuring any rust present is cosmetic rather than affecting structural integrity.