2021 Suzuki Swift SZ-T Dualjet Mhev 1.2L Hybrid electric (clean) · CF21 BJX

Recurring mechanical issues regarding drivetrain integrity and tyre condition define the recent history of this vehicle, culminating in a complex failure during its June 2026 inspection. While the car successfully passed its first two annual tests without recorded defects, the 2026 session identified significant structural and safety failures, specifically regarding split constant velocity boots on both front driveshafts and a dangerous tyre tread deficiency. Although the vehicle ultimately achieved a pass on the same day following rectification, the emergence of these failures indicates that critical rubber components have reached a stage of degradation that requires ongoing vigilance. Accumulating 49,791 miles over five years results in an average of approximately 9,958 miles per annum, a pace of usage that is consistent with typical private motoring. This mileage profile suggests the vehicle has been in regular operation rather than sitting idle for extended periods, which generally helps prevent issues associated with long-term storage such as seized brake components or battery depletion. However, the consistent annual usage means that high-wear items like driveshaft boots and tyres have been subjected to continuous stress, necessitating a thorough check of all rubber gaiters and suspension bushings during any future inspection to ensure that the recent repair work remains robust. When test-driving this Suzuki, prioritize the front drivetrain by performing tight, low-speed figure-eight manoeuvres in both directions. Listen intently for any clicking or rhythmic knocking sounds emanating from the front wheels, as these are primary indicators of damaged constant velocity joints that may have suffered internal wear if the previously split boots allowed road debris to penetrate the grease seals. Furthermore, inspect the inner and outer sidewalls of the rear tyres for the out-of-shape characteristics previously flagged as advisories. Any vibration felt through the steering wheel or seat at motorway speeds could suggest that these tyres have developed internal structural irregularities that were not fully resolved by the recent MOT rectification. Beyond the specific flagged items, evaluate the vehicle's handling over uneven road surfaces to check for premature wear in the suspension linkages. Given the recent intervention on the front axle, ensure the steering remains neutral and does not pull to either side under braking or acceleration. Check that the gear changes are smooth and that there is no hesitation or unusual noise from the mild-hybrid drivetrain during transition phases. If the steering feels vague or if there is any knocking noise when traversing speed bumps, it may suggest that the front suspension components are nearing the end of their effective service life, requiring further investigation into the condition of the track rod ends and anti-roll bar links.