2021 Toyota Corolla Icon HEV CVT 1.8L Hybrid electric (clean) · KP21 SSO

Brake disc condition emerges as the primary mechanical concern, with advisories on pitted rear discs appearing on three consecutive MOTs and persisting despite the vehicle passing its latest test on 13 March 2026. While the test result was a pass, the repeated notes on both nearside and offside rear inner discs indicate that the braking surface is approaching the point where thickness loss could become a safety issue, and the tyre advisory on the nearside rear wheel further highlights the rear axle as the area requiring close attention. At 45,211 miles recorded for a 2021 model, the average annual accumulation is roughly 9,000 miles, which sits comfortably within normal UK usage patterns and suggests neither extreme low‑mileage storage nor high‑stress mileage spikes. The MOT history shows annual testing with no gaps, confirming consistent road use and providing a reliable mileage trace; this moderate mileage means that wear on consumables such as brake pads, tyres and suspension components should be proportionate to the recorded distance, but the specific brake disc advisories suggest that the rear braking system may be wearing faster than the overall mileage would predict. When inspecting the rear braking system, feel for any pulsation or shudder through the pedal under moderate braking, listen for a high‑pitched squeal that could indicate thinning pads, and measure disc thickness against the manufacturer’s minimum specification. Uneven or reduced braking effort, especially on the nearside, may point to the pitting noted in the MOT reports. A visual inspection should also confirm that the discs are free of deep scoring or cracks, and that the pads have sufficient remaining material; if the pads are thin, disc replacement may become imminent to avoid loss of braking efficiency. The nearside rear tyre, flagged as close to the legal limit, should be examined for tread depth on both the centre and edges, and for any sidewall bulges or uneven wear that could signal alignment or suspension issues. During a test drive, note any pulling to one side, vibration at higher speeds, or a thumping sensation over bumps, which could indicate worn bushings or mis‑aligned rear suspension components that often accompany tyre wear. Given the age and mileage, budgeting for a new rear tyre set and a proactive brake disc inspection or replacement would be prudent to maintain roadworthiness and avoid unexpected MOT failures.