2008 Toyota Prius 1.5L Hybrid electric · FN57 GRK

The most recent MOT test on this 2008 Toyota Prius was conducted on 26 March 2026, where the vehicle passed, though a brake pipe advisory was carried forward from the previous day's failed attempt. That failure on 23 March 2026 recorded dangerous tread depth deficiencies on both rear tyres alongside major defects relating to nearside and offside front anti-roll bar linkage ball joints, indicating that the suspension and tyre condition had deteriorated beyond acceptable limits just prior to the pass. Looking across the recorded history, the maintenance trend is clearly worsening rather than stable: advisories for anti-roll bar linkage play and lower suspension arm rear bushes have appeared repeatedly from 2020 onwards, progressing from minor advisories through to major failure items in 2026. The accumulation of corrosion advisories on underbody components, brake pipes, and suspension arms over successive tests points to progressive structural and mechanical wear typical of a high-mileage hybrid that has accrued significant road grime exposure over nearly two decades. With a recorded mileage of 181,397 miles spread across approximately eighteen years, this Prius averages around 10,078 miles per year, which is broadly typical for a vehicle of its age. There are no significant gaps in the MOT record suggesting prolonged standing periods, and the mileage progression between tests appears consistent, indicating regular use rather than long-term storage. For a Toyota Prius of this vintage and mileage, the hybrid system, inverter coolant, petrol engine oil seals, and CV joints of the transaxle are all items that have accrued substantial working hours, and the documented oil leak advisory from 2025 aligns with expected age-related gasket and seal degradation. The anti-roll bar linkage ball joint wear that escalated from advisory status in 2020, 2022, and 2023 to a major failure in 2026 should be a primary inspection focus. On a test drive, listen for clunking or knocking from the front suspension over uneven road surfaces, particularly over speed bumps or driveway entries, and pay attention to any vagueness or instability during direction changes. The lower wishbone rear bushes flagged from 2020 onwards will produce similar knocking symptoms and may also contribute to vague steering or uneven front tyre wear; have these inspected for excessive movement by rocking the wheels with the vehicle raised. The recurring brake pipe corrosion advisories on both front and rear systems suggest the underbody brake lines are oxidising; on test drive, depress the brake pedal firmly to confirm a solid feel with no sponginess, and inspect for fluid seepage at pipe joints and flexible hose ends, as corroded brake pipes represent a safety-critical failure point that will eventually require replacement. Given the dangerous tyre tread depth failure on both rear tyres in 2026, verify that replacements were fitted to matching specification on both rear wheels and check the sidewalls for perishing or cracking, as eighteen-year-old rubber can degrade structurally even with adequate tread. The front headlamp dipped beam failure recorded in 2023 warrants confirming both bulbs currently function correctly and that the headlamp lens product residue flagged in 2025 has not progressed to meaningfully reduce light output. The exhaust minor leak advisories from 2023 and 2025 should be inspected for hissing or ticking noises on startup and any worsening of exhaust drone under acceleration, as aged exhaust system joints and centre sections on high-mileage vehicles commonly develop further leaks. Finally, ensure that the twelve-volt auxiliary battery has been recently replaced, that hybrid system coolant has been serviced within the manufacturer's intervals, and that the engine oil and filter have been changed regularly, as these time-based maintenance items are as critical as mileage-based servicing for a hybrid of this age.