2015 Peugeot 508 2.0L Diesel · BP15 AKX

Brake wear is the defining theme of this 2015 Peugeot 508's history, culminating in a dangerous failure in June 2023 when both rear brake pads were found below 1.5 mm thick. That defect was rectified and the car passed a retest the same day, but the pattern did not end there: the nearside rear inner pad was again flagged as wearing thin in 2025, accompanied by worn rear discs on both sides, suggesting the rear braking system consumes components at a notable rate. Alongside this, a persistent fault with the centre high-level brake light has been recorded as an advisory across four consecutive tests from 2022 to 2025, and a severely deteriorated offside front outer CV boot was noted as a minor defect in 2025. Against that backdrop, the most recent test on 6 August 2026 passed with no defects recorded at all, which is the cleanest result since 2021 and indicates the outstanding items were addressed, though the recurring nature of the brake and lighting advisories warrants verification that repairs were durable rather than minimal. Recorded mileage stands at 58,576 miles over roughly eleven years, averaging about 5,325 miles per year, which is low for a car of this age. The annual test rhythm has been consistent, with tests every June and no gaps in the record, so there is no evidence of extended lay-ups. However, low annual mileage on a diesel-era family saloon of this type typically means shorter journeys, and that usage profile is consistent with the observed pattern of brake component wear and edge wear on front tyres, since light use does not exempt consumables from ageing. The 2020 advisories showing both front tyres worn on their edges, plus a cut in the offside front sidewall, point to either alignment geometry being out or sustained underinflation at that time; the nearside front tyre was again flagged as worn on the outer edge in 2025, so front suspension geometry and tyre condition deserve scrutiny. On a test drive, the braking system should be the priority. Listen and feel for any grinding or squeal from the rear axle under moderate braking, check for pedal judder that would indicate disc thickness variation or warping on the already-worn rear discs, and confirm the handbrake holds firmly on an incline, since rear pad wear on this model often involves the caliper and handbrake mechanism. Given the repeated inner pad wear specifically, ask for evidence that the rear calipers slide freely on their guide pins, as a binding caliper is the usual cause of one-sided inner pad wear and will simply eat through new pads if left unresolved. Also verify that all elements of the high-level brake light now illuminate, as this fault persisted across four test cycles and may indicate a wiring or LED unit issue rather than a simple bulb. The severely deteriorated offside front CV boot recorded in 2025 is the other item to chase down. If the boot was replaced, confirm the joint itself was inspected or renewed at the same time, because a boot left split allows grease to escape and grit to enter, destroying the joint. On the test drive, perform full-lock turns at low speed in both directions in a car park and listen for a rhythmic clicking or knocking from the front, which signals a worn CV joint. Finally, given the repeated front tyre edge wear, have the front wheel alignment checked and inspect the front suspension bushes and ball joints for play; uneven steering feel, a tendency to pull, or vague straight-line tracking would support further investigation before purchase.