2015 Citroen Relay 2.2L Diesel · CE65 BBO

The 2015 Citroën Relay’s most recent MOT test on 19 February 2025—just 17 months ago—confirmed full roadworthiness with no defects recorded, though the preceding test on 11 January 2023 was a rare failure at 171,825 miles. This anomaly, combined with the clean pass in January 2023 at 171,829 miles just five days later, suggests either a minor oversight in the initial inspection or a vehicle that has otherwise maintained a stable mechanical condition. The absence of advisories or recurring faults in the last three tests indicates no obvious trend of worsening issues, though the 2023 failure—despite no recorded defects—raises curiosity about what specific component may have prompted the retest. The remaining MOTs from 2021 and 2024 show consistent pass statuses, reinforcing a pattern of compliance with basic roadworthiness standards. The vehicle’s mileage progression reveals an unusually high annual average of approximately 16,866 miles, which is aggressive for a car of this age. Between the 2023 failure and the 2024 pass, the Relay accumulated 6,958 miles in just over a year, suggesting either heavy usage or extended periods of inactivity followed by rapid mileage buildup. The gap between the 2021 test at 169,674 miles and the 2023 failure at 171,825 miles—nearly two years with only 2,151 miles logged—could indicate periods of storage or lighter use, though the subsequent spike contradicts this. Such variability in mileage accumulation may imply inconsistent maintenance intervals, potentially leaving some components—such as suspension bushes or brake calipers—exposed to uneven wear cycles. Given the lack of recorded defects in recent tests, a buyer should prioritise a thorough inspection of high-mileage wear items, particularly the suspension system, where rubber bushes and coil springs often degrade silently. The 2023 failure, though unexplained, warrants scrutiny of the braking system, as minor issues like binding calipers or uneven disc wear can sometimes evade detection until they reach failure thresholds. Corrosion in wheel arches, subframes, and rear sills should also be examined, as the Relay’s age and mileage increase the risk of structural weakening. Finally, the exhaust system—particularly at the rear tailpipe and mid-section—should be checked for leaks or excessive rust, as these are common failure points in high-mileage vehicles. The absence of advisories does not guarantee these areas are intact, so visual and functional testing is essential.