2019 Citroen C4 Cactus 1.2L Petrol · SA69 WDV

The defining mechanical story on this 2019 Citroen C4 Cactus is a rear brake disc wear pattern that has been present in some form across every MOT for the last four years, alongside a recurring front exhaust mounting defect that has now appeared in two consecutive tests. The most recent examination on 16 April 2026 recorded a pass, but it flagged both nearside and offside rear brake discs as worn, pitted or scored, marking an escalation from the single-sided offside advisories of 2022 and 2025 and the more generalised 2024 note about both rear discs being corroded. The front exhaust mounting defect, first noted in April 2025, carried forward again in 2026, suggesting the rubber isolator has not been replaced and the exhaust system remains free to move beyond its intended tolerance. There are no recorded failures across the five tests on file, but the persistence of these two items is the clearest signal of what to monitor during inspection. Mileage is recorded at 47,336 miles across seven years of age, equating to roughly 6,762 miles annually, which sits within the typical range for a vehicle of this vintage and avoids the pitfalls of either extended standing periods or unusually high wear accumulation. The annual MOT cadence is consistent, with tests in 2022, 2023, 2024, 2025 and 2026, indicating continuous use rather than a laid-up vehicle, and there are no unexplained gaps or rapid mileage jumps that would point to a clocked history or a change in operating conditions. Mechanically, this level of usage means brake consumables, tyres and suspension components should be inspected for normal service-life wear rather than premature fatigue from low-mileage neglect or harsh high-mileage degradation. A prospective buyer should focus the physical inspection on the rear brake discs and the exhaust mounting, as these are the components with the longest running advisory history. The rear discs should be measured for remaining thickness, and a test drive should include firm progressive braking from around 30 mph to check for pedal judder, vibration through the chassis or any pulsing that would indicate the pitting recorded by the tester has progressed to a thickness variation or hot-spotting. Listen for any scraping or grinding as the brakes are released, and inspect the caliper carriers and slide pins for binding, which would accelerate uneven wear on a vehicle where both rear discs are now flagged. Under the car, the front exhaust section should be rocked by hand to confirm whether the mounting allows excessive movement, and the rubber hanger should be inspected for cracking or separation, as a loose exhaust can transmit noise and vibration into the cabin and risk contact with underbody components over speed humps. The tyres, suspension and structural items should also be checked with reference to the advisories noted on the front nearside and offside tyres in 2024. Examine the front tyres for sidewall cracking, perishing or cuts that reach the ply or cords, and confirm the tread depth is consistent across the axle, as uneven wear would point to a tracking or suspension issue not flagged separately on the MOT. On the test drive, listen for knocks or clonks over uneven surfaces, particularly from the front suspension, as the C4 Cactus is known for wear in the front wishbone bushes and anti-roll bar drop links, and feel for any vagueness or pulling through the steering that might indicate worn components not yet severe enough to fail an MOT. Finally, inspect the rear subframe and underbody mounting points for corrosion, particularly around the rear axle and brake line brackets, as the persistent brake disc advisories combined with any visible surface corrosion could indicate that the discs are being contaminated rather than simply wearing through normal use.