2017 Citroen C3 1.2L Petrol · CU17 TLV

A pattern of corrosion on both the front and rear subframes is the defining mechanical theme in this C3's MOT history, with advisories recorded at the February 2026 test flagging both units as corroded but not seriously weakened at that point. The vehicle was tested again at the end of March 2026 and passed with no defects recorded, so the subframe condition has not deteriorated to a failure category in the short intervening period, but subframe corrosion is progressive and warrants close physical inspection rather than reliance on the pass alone. Beyond the subframes, the front brake discs have attracted repeat advisories across the record, scoring and pitting flagged in February 2026 and edge corrosion noted as far back as February 2021, while front brake pads were reported as wearing thin at the February 2025 test. Front inner tyres were also flagged as worn close to the legal limit on both sides at the February 2024 test, suggesting either an alignment issue, a tendency for inner-edge wear on this model, or prolonged neglect of tyre rotation. The vehicle has never failed an MOT in the recorded history, with seven consecutive passes between February 2020 and March 2026, but the recurring nature of the brake and underbody advisories means a clean pass does not equate to a clean mechanical picture. The recorded mileage of 39,443 miles over approximately nine years works out at an annual average of around 4,383 miles, which is low for a vehicle of this age. There are no gaps in the testing history, with annual tests consistently recorded from 2020 through to early 2026, so the vehicle has been in regular use rather than laid up for extended periods. Low annual mileage of this nature tends to reduce wear on major drivetrain components such as the engine, clutch and gearbox internals, but it can also bring its own considerations: brake discs and pads can suffer from surface corrosion and pitting due to infrequent heavy braking cycles, tyres can develop sidewall cracking or flat-spotting from standing, and underbody components are more exposed to the effects of moisture and road salt because short journeys rarely allow the vehicle to fully dry out. The fact that the brake disc and subframe advisories are concentrated at the most recent tests is consistent with corrosion-related deterioration rather than wear from high mileage. For a prospective buyer, the underbody and brake condition should be the priority areas for physical inspection. With subframe corrosion flagged on both the front and rear units, the car should be examined on a ramp if possible, paying particular attention to the mounting points, suspension arms and any brake or fuel line brackets attached to the subframes, as corrosion at these locations can advance quickly once it becomes visible. The front brake discs should be checked for lipping, run-out and uneven surface wear, as pitted and scored discs noted at the 2026 test can produce pedal pulsation, vibration under braking, or uneven pad wear. The front brake pads, last flagged as wearing thin, should be inspected for remaining material and any tendency to bind, which on a test drive may present as the vehicle pulling to one side, a binding feel when releasing the accelerator, or excessive heat and dust accumulation on one wheel. On a road test, the focus should be on symptoms that tie back to the components already flagged in the record. Listen for clonks or knocks from the front suspension over speed humps and uneven surfaces, which could indicate worn suspension bushes, top mounts or droplinks aggravated by the age and subframe condition of the vehicle. Check for steering pull, vagueness through the centre or any knocking on full lock, and feel for brake judder or vibration through the pedal and steering wheel during moderate to firm stops from around 30 mph. Inspect the inner and outer edges of the front tyres for uneven wear patterns consistent with the 2024 advisory, confirm the nearside and offside tread depths are within legal limits, and examine the sidewalls for cracking given the low annual mileage. Finally, with the subframe advisories in mind, request evidence of any recent underseal treatment or corrosion prevention work, and verify that there are no fluid leaks from the engine, power steering or brake lines routed near the corroded subframe areas.