2017 Citroen C4 Cactus 1.6L Diesel · SA17 LGC

The 2017 Citroën Cactus presents a concerning pattern of recurring MOT failures across its recent testing history, with three out of five recorded tests having resulted in failure. The most recent test on 2026-06-22 showed a mixed result where the car passed general standards but failed due to a split or insecure constant velocity boot at the offside front outer drive shaft joint, which compromises protection against dirt ingress, alongside a minor issue with the rear registration plate lamp being inoperative. Prior to that, the same vehicle failed twice on 2025-06-19, repeating complaints about worn tyres on both axles, pitted front brake discs, and worn inner suspension arms on the near side. A clean pass occurred in 2024-07-01 before the deterioration resumed, indicating that underlying problems were not adequately addressed between tests. The current status reflects a vehicle that has accumulated multiple technical deficiencies rather than maintaining consistent roadworthiness. At 70,026 miles on a nine-year-old model, the vehicle shows approximately 7,781 miles per annum, which aligns with typical usage patterns for its age and does not immediately suggest abnormal wear acceleration. However, the gap between the last clean MOT in July 2024 and the first failure in June 2025 represents nearly four months without a test, during which the reported tyre wear, brake disc scoring, and suspension arm degradation likely continued unchecked. The subsequent failures in mid-2026 indicate that the original issues persisted rather than resolving, suggesting either inadequate repair completion or the progression of initial faults. While the mileage itself appears within expected ranges for a vehicle of this type, the combination of persistent tyre degradation, brake disc deterioration, and suspension component wear points to cumulative mechanical stress that requires immediate attention regardless of the numerical mileage figure alone. The front inner suspension arm on the near side shows documented wear through multiple test cycles, specifically noted as a worn pin or bushing that has not yet caused excessive lateral movement but indicates progressive fatigue in the linkage assembly. During a test drive, the buyer should monitor for any clunking or grinding noises when navigating uneven surfaces or hitting small bumps, as worn suspension bushings often transmit vibration and can lead to increased unsprung mass over time. Additionally, the constant velocity joint boot at the offside front outer drive shaft has suffered a split or become insecure, which could allow debris to enter the bearing housing and accelerate internal wear. Listening for grinding or creaking sounds when turning the wheel, particularly at low speeds, would help confirm whether this joint remains functional or if fluid contamination has compromised its integrity. Brake performance warrants particular scrutiny given the repeated reports of front brake discs showing pitting and scoring despite not being deemed severely weakened. On test drive days, applying steady pressure while braking gently should reveal any pulsating or spongy pedal response that might indicate internal disc or caliper issues. The rear brake system did not generate separate advisories, but the lack of rear tyre concerns in the recent failures contrasts with the front-side problems, suggesting the rear drums or pads may still be in acceptable condition though they remain worth inspecting visually for wear patterns. Overall, the buyer should treat this vehicle as requiring immediate professional inspection of the suspension linkages, drive shaft joint, and brake components before considering any investment, as the documented failures point to systemic rather than isolated problems that compound each other under normal driving conditions.