2004 Ford Focus 1.6L Petrol · NC53 ABK

The most recent MOT, dated 14 May 2026, was a pass but carried an advisory that the rear suspension arm pin or bush is worn. This follows a failure recorded the previous day for an excessively worn off‑side rear suspension arm pin or bush, a major exhaust leak and several tyre condition advisories. Earlier in the series the 2025 test only flagged a light oil mist on the front shock, while 2024 showed a failure for a corroded rear lower suspension arm, compromised rear seat‑belt anchorage and a minor exhaust leak. The pattern is clearly one of deteriorating condition, with recurring major defects in the rear suspension, corrosion‑related weaknesses and emissions leakage, indicating that the vehicle’s maintenance trajectory is worsening rather than stabilising. At 136,586 mi the car averages just over 6 000 mi per year, which is typical for a 22‑year‑old model. The relatively modest annual mileage suggests periods of low use or extended storage, which can exacerbate age‑related decay such as rubber hardening, metal corrosion and battery deterioration. Conversely, the mileage is sufficient to have consumed the service life of many wear items – suspension bushings, shock absorbers, brake components and tyre tread – meaning that the recorded wear is likely a combination of age and use rather than an extreme mileage load. A prospective buyer should give the rear suspension immediate attention. The off‑side rear arm pin or bush has been flagged as excessively worn; this component controls wheel alignment and load transfer, and failure can produce clunking noises, uneven tyre wear and a vague “loose” feel when cornering. The near‑side rear lower arm is reported as corroded and weakened, which can lead to sudden loss of control if the arm fractures. Inspect both arms for play by rocking the wheel at the 12 o’clock and 6 o’clock positions, look for cracked or pitted metal, and listen for metallic knocks over bumps. The tyre advisories – a cracked rear tyre and tread wear on the off‑side rear – mean the rear set should be examined for sidewall cracking, tread depth below 1.6 mm, and any bulges; replacement is likely required. The exhaust system’s major leak recorded in 2026 must be traced, as a leak before the catalytic converter can cause the MOT emissions test to fail and may allow exhaust gases into the cabin, producing a sulphuric smell or increased engine noise. The seat‑belt anchorage failures and corrosion on the rear brake pipe indicate that the rear safety cage and hydraulic integrity may be compromised; the anchorage should be checked for cracks, rust and secure stitching, while the brake pipe should be examined for rust, leaks or grease contamination that could affect braking performance. Beyond the specific defects, the vehicle’s age warrants a thorough calendar‑based inspection. Verify the condition of the 12 V battery – look for swollen cases, low cranking voltage and check the electrolyte level if it is a conventional type – as a 22‑year‑old battery is unlikely to retain full capacity. Examine all fluid reservoirs for colour and sediment; engine oil, gearbox oil and coolant should be changed if service stamps are absent for the last 12 months, as degradation can lead to sludge, overheating and bearing wear. Inspect the under‑carriage for rust on the chassis, sub‑frame and exhaust mounts, especially around the rear suspension mounting points where corrosion was previously noted. Check the brake discs for surface rust, scoring or uneven wear, and ensure the calipers move freely without sticking, as standing periods often cause pistons to seize. A comprehensive test drive should include listening for any squeal or shudder when applying the brakes, feeling for any vibration or pull when steering, and noting any unusual vibrations that could hint at worn driveline or wheel bearing issues. Addressing these points before purchase will clarify the true roadworthiness of the Focus and help budget for imminent remedial work.