2007 Suzuki Swift 1.5L Petrol · NA07 AAZ

The most recent MOT test on the Suzuki Swift was conducted on 2025-11-13, resulting in a failure due to an engine malfunction indicated by the Malfunction Indicator Lamp (MIL), alongside persistent advisories regarding severe corrosion of the rear subframe. This failure follows a pattern where the vehicle’s engine-related issues have been recurrent, with both the 2024 and 2025 tests highlighting the same malfunction code, suggesting a persistent underlying problem that has not been resolved or adequately addressed. The advisories on corrosion of the rear subframe and brake pipe corrosion, while not failing the test, indicate ongoing structural and mechanical degradation that requires immediate attention. The trend over the past three years shows a mix of passing and failing tests, with advisories recurring rather than being resolved, which raises concerns about either a lack of proactive maintenance or a fundamental design or component failure that has not been mitigated. The recorded mileage of 81,732 miles for a vehicle aged approximately 19 years represents a relatively low annual usage rate of around 4,302 miles per year, which is notably lower than would be expected for a vehicle of this age under typical UK conditions. Such low mileage can often reflect periods of prolonged inactivity, particularly if the car has been stored in a garage or kept in a low-traffic environment. However, this usage profile does not inherently guarantee the vehicle is free from wear and tear; instead, it may exacerbate issues related to standing corrosion, particularly in areas exposed to moisture, such as the rear subframe and underbody components. The absence of higher mileage accumulation suggests that while the vehicle may not have been subjected to heavy daily use, it has not been maintained with the same frequency as a higher-mileage model, potentially leaving critical systems like the engine, suspension, and braking components vulnerable to long-term degradation. Given the recurring engine MIL failure and the severe corrosion advisories, the buyer should prioritise a thorough inspection of the engine bay, focusing on the ignition system, wiring harnesses, and fuel delivery components, as these are common areas where persistent faults manifest. Listen for unusual engine noises, particularly during cold starts or under acceleration, which could indicate a failing fuel pump, spark plugs, or exhaust system issues. The rear subframe’s heavy corrosion is a critical concern, as it compromises the vehicle’s structural integrity and could lead to catastrophic failure if left unaddressed. Inspect the rear suspension and wheel assembly for signs of binding or excessive play, as this may indicate subframe damage or misalignment. Additionally, check for fluid leaks around the rear axle and brake system, as the grease and corrosion on the offside rear brake pipe suggest potential brake line failure or seal degradation. For the buyer, the most urgent actions should include replacing the corroded rear subframe and addressing the engine malfunction, which may require a full diagnostic assessment and potential remanufacturing or replacement of key components. The brake pipe corrosion and fuel pipe corrosion advisories also warrant immediate attention, as these could lead to system failures if not repaired promptly. Beyond immediate repairs, the buyer should schedule a comprehensive service that includes checking and replacing all fluids—oil, coolant, brake fluid, and transmission fluid—due to their potential degradation over the vehicle’s age and prolonged standing. Inspect the tyres for sidewall perishing, which is common in older vehicles, and ensure they meet legal minimum tread depths. Test the 12V battery for capacity and connections, as standing vehicles are prone to battery drain and corrosion in terminals. Finally, verify the service history for any missed maintenance, particularly around the suspension, exhaust, and electrical systems, to prevent further deterioration. A thorough test drive should include checking for suspension clunks, uneven tyre wear patterns, brake shudder or pulsation, and any unusual noises from the engine or exhaust, which could indicate ongoing issues.