2015 Citroen C4 1.6L Diesel · WM64 CCD

A clear pattern of front-axle and underbody wear defines this C4's roadworthiness profile. Across four tests spanning 2022 to 2024, the same trio of mechanical concerns has surfaced repeatedly: front inner-tyre wear, deteriorating constant velocity boots on the offside front driveshaft, and front anti-roll bar linkage deterioration. The most recent test on 2024-05-10 returned a Pass, but only after a prior failed test thirty-seven days earlier on 2024-04-03 flagged a split CV boot, a perished anti-roll bar ball joint dust cover, and an inoperative tyre pressure monitoring system. The May retest passed with advisories on the same front tyre inner-edge wear and on rear brake disc pitting and corrosion. This is not a vehicle that has been quietly deteriorating; it is one whose front suspension and drivetrain sealing have been an active and recurring concern for at least two testing cycles. Mileage of 127,391 over eleven years equates to roughly 11,581 miles annually, which is broadly typical for the age and consistent with regular commuter or family use rather than neglect or high-intensity commercial operation. There is no obvious extended gap in testing that would suggest a long period off the road, nor is there evidence of an unusual mileage spike between consecutive tests. Mechanically, this level of use is sufficient to consume a set of front tyres, wear front brake pads and discs, and fatigue suspension components such as anti-roll bar drop links, control arm bushes, and top mount bearings, all of which aligns with the recurring advisories. Routine service items like engine oil and filter changes are unlikely to have been skipped at this annual rate, though the persistent rear brake disc corrosion advisories suggest the vehicle is likely used for shorter journeys where the rear brakes receive limited thermal cycling. A prospective buyer should pay particular attention to the front suspension and drivetrain, as these are the components the MOT history consistently identifies as marginal. Listen for clonking or rattling from the front end over uneven surfaces, which would suggest the anti-roll bar ball joint or its links have worn further since the 2024 advisories. Inspect the offside front inner CV joint boot for any fresh grease contamination on the surrounding suspension arm or subframe, as a split boot will eventually lead to joint failure if not addressed. With the offside front tyre having been flagged twice for inner-edge wear, check that the wheel alignment, particularly camber, is within specification, as uneven inner wear of this severity often points to worn front suspension bushes or a bent component rather than simple inflation issues. On the test drive, expect to feel the symptoms of the items already flagged. Brake pedal feel and response should be assessed with the rear disc corrosion advisories in mind; any significant judder through the pedal under light or moderate braking would indicate the rear discs have deteriorated beyond the pitted but not seriously weakened state recorded at the last test, particularly given another twelve to eighteen months of likely use since. Listen for a steady mechanical ticking or knocking from the engine bay consistent with the minor oil leak recorded in 2023, and verify that the oil level on the dipstick is at the maximum mark before any purchase. The tyre pressure monitoring system warning light should illuminate on ignition and remain on or flash, as an inoperative system recorded as a Major failure in 2024 would suggest either a recent aftermarket wheel and sensor set or unresolved sensor faults. Finally, inspect the rear exhaust mounting, which was flagged as defective in 2023, and confirm there is no excessive movement or audible rattle from the exhaust under load, as a collapsed mounting can lead to premature exhaust flexi-joint failure on diesel derivatives common to this model.