2018 MG 3 1.5L Petrol · CA68 KDK

The MG 3 presents a roadworthiness picture dominated by recurring brake-related advisories rather than any dramatic structural or mechanical failures. Across its recorded test history, only two failures are listed, both for relatively minor reasons: a headlamp aim defect in November 2023 and an ineffective windscreen wiper on the nearside in March 2025. Both items were rectifiable and the vehicle has subsequently passed its tests. However, the advisory pattern reveals an ongoing theme with the braking system. The March 2025 test, on both its pass and fail entries, flagged corrosion on the nearside and offside rear brake pipes. Then, on the most recent test dated 30 March 2026, attention shifted to the front axle, with pitted and scored front brake discs noted on both sides, accompanied by brake pad wear advisories on the nearside and offside front pads. This succession of brake-related advisories across two consecutive test cycles suggests the braking system requires close scrutiny, as items noted as borderline at one test can quickly progress to failure items by the next. With 73,863 miles recorded over an approximately eight-year lifespan, the MG 3 has accumulated around 9,200 miles annually, which sits broadly in line with typical usage for a vehicle of this age and class. There are no extended gaps in the MOT record that would suggest long periods off the road, and the mileage progression between tests appears consistent rather than erratic. At this annual mileage, consumable wear on items such as brake pads, discs, tyres, and suspension components is to be expected, and the recorded advisories broadly correlate with a vehicle that has seen steady, real-world use. The absence of any structural, steering, suspension, or exhaust advisories in the recent record is a positive indicator, although it should be noted that MOT testing is a point-in-time assessment and does not confirm the internal condition of components not specifically examined. Given the brake pipe corrosion flagged in 2025, a prospective buyer should arrange a physical inspection of the underbody, paying particular attention to the rear brake lines for any signs of surface rust, flaking, or pitting that may have worsened over the past twelve months. Brake pipes that are merely coated in grease or debris can often be cleaned and monitored, but any active corrosion that has compromised the metal wall will require replacement to remain roadworthy. The 2026 advisories on the front brake discs and pads indicate these components are approaching the end of their service life. During a test drive, listen for any squealing or grinding from the front wheels under light braking, feel for vibration or judder through the steering wheel when the brakes are applied, and check for the vehicle pulling to one side, which can indicate uneven pad wear or a binding caliper. Also inspect the discs visually for a pronounced lip on the outer edge, which confirms significant wear. The remaining advisories are minor but worth addressing. The deteriorated rear registration plate noted in 2026 is a cosmetic and legal-compliance issue that can be resolved cheaply with a replacement plate. The headlamp aim failure from 2023 should not reoccur if it was correctly adjusted at the time, but it is worth verifying on a test drive that the beam pattern is level and not dazzling oncoming traffic, particularly if the vehicle has been loaded. Finally, although the wiper failure from 2025 was also a one-off rectification, checking that both wiper blades clear the screen evenly and do not streak is worthwhile, especially given that the MG 3 has a relatively large windscreen area. With the braking system being the primary area of concern identified through the test history, budgeting for front brake discs and pads, and potentially an inspection of the rear brake pipes, would be a prudent step before purchase.