2016 DS DS3 1.2L Petrol · LD66 RNN

The defining mechanical story across this DS3's MOT record is a sustained and recurring brake-related issue, most acutely concentrated at the rear axle. The November 2023 test recorded a Dangerous defect for rear brake pads worn below 1.5 mm, accompanied by a Major for an excessively binding offside rear service brake and a further Major for a significantly worn rear brake disc. The 2021 test produced an even more concerning outcome, with Dangerous defects raised against both rear brake discs for being seriously weakened, alongside Major items for headlamp aim and a front position lamp showing white light to the rear. Although the car has subsequently passed its 2024 and 2025 tests, the persistent appearance of binding rear brake calipers as an advisory in 2022 and the cumulative disc wear history suggest the rear braking system has been a chronic weak point rather than an isolated incident. The latest pass on 17 November 2025 was therefore achieved against a backdrop of multiple prior brake failures, and any prospective buyer should treat the rear brake assembly as the primary area of concern. Against a ten-year age, the recorded 74,869 miles equates to an average of roughly 7,500 miles per year, which sits broadly in line with typical usage for a vehicle of this vintage and is not suggestive of either prolonged standing or excessive motorway accumulation. The annual testing pattern is consistent with continuous road use, with no multi-year gaps that would raise concerns about dormant components such as seized calipers, perished rubber, or a depleted battery. Mileage progression between tests appears steady rather than erratic, and the relatively modest annual accumulation means consumables such as brake pads, discs, tyres, and ancillary drive items should be expected to wear at a moderate rather than accelerated rate, provided prior rectification work has been properly executed. Given the documented history, a pre-purchase inspection should focus squarely on the rear braking system. With the 2023 Dangerous pad defect and 2021 Dangerous disc defects still recent in the vehicle's timeline, the buyer should physically inspect pad material thickness through the caliper window, check both rear discs for lipping, scoring, or corrosion pitting at the inner edge, and verify that both rear calipers are retracting correctly rather than remaining partially applied, which would replicate the binding issues recorded in 2021 and 2022. On a test drive, listen for any dragging or grinding sensation, particularly after prolonged braking, and confirm the handbrake holds firmly without creeping on an incline, as a sticky offside caliper was specifically flagged. The front discs and pads were also noted as worn, pitted, and thinning across the 2020 and 2021 tests, so the front caliper slide pins and flexible hoses should be examined for corrosion or perishing, with attention paid to any steering pull or uneven pedal response under braking. Beyond the braking components, the 2025 advisories warrant targeted checks. The offside outer sill corrosion advisory is significant on a ten-year-old car, as DS3 sills are known to deteriorate from the inside out, and the buyer should request the vehicle be raised to confirm there is no perforation or structural weakness behind the step area. The worn auxiliary drive belt advisory should prompt inspection of the belt's ribbed surface for glazing or cracking and a check for any chirping or squealing on cold start, particularly with ancillaries such as the alternator and air conditioning engaged. The low coolant advisory, even though minor, requires confirmation that there is no ongoing leak from the radiator, hoses, water pump, or thermostat housing, and the slightly discoloured front indicators and poor nearside headlamp image suggest the front lighting units may be suffering from UV degradation or moisture ingress, both common on vehicles of this age. A final check of the nearside front Macpherson strut, noted as corroded but not seriously weakened in 2021, is advisable to ensure no progression to serious weakening, with attention paid to any knocking from the front suspension over uneven road surfaces.