2016 BMW 420 2.0L Diesel · C23 HAA

The vehicle is currently roadworthy, but the maintenance history indicates a reactive rather than proactive ownership pattern. The most recent test in March 2026 at 128,226 miles resulted in a failure due to critically worn rear brake pads measured at 1.1mm and loose undertrays. While the vehicle passed immediately after these repairs, the presence of such thin pads suggests that components are only addressed once they reach the point of failure. This reflects a trend of deferred preventative maintenance. At 128,226 miles, this ten-year-old BMW has averaged approximately 12,800 miles per year, which sits above the UK national average. The mileage accumulation shows consistent use, with roughly 7,000 miles covered between the March 2024 and April 2025 tests, and another 4,000 miles between April 2025 and March 2026. This high annual mileage places significant strain on the drivetrain, suspension components, and braking systems, accelerating the natural wear of rubber bushes and friction parts. A buyer must conduct a thorough physical inspection of the tyres and wheel assembly. The April 2025 failure at 124,107 miles revealed dangerous irregularities, including different aspect ratios on the same axles and a structural bulge on the nearside front tyre. These issues indicate a lack of attention to basic safety-critical equipment. Furthermore, the loose undertrays flagged in the March 2026 test should be checked to ensure they are securely fastened and not suffering from impact damage, which could affect the exhaust or fuel lines. Given the high mileage and the recent brake failure, a professional inspection of the brake calipers and suspension bushings is essential to identify hidden mechanical wear.