2009 Audi A4 2.0L Diesel · MF59 HND

The 2009 Audi A4 presents a mixed but largely stable maintenance picture. The most recent test on 10 April 2026 at 250,231 miles passed with two minor advisories: an oil leak deemed not excessive and a rear suspension component showing corrosion without serious structural weakening. The trajectory over the past three years shows a resolving trend. The 2024 failure was addressed promptly the following day, and the 2025 test recorded zero defects. This pattern suggests the previous owner responded to faults rather than ignoring them. Mileage accumulation tells a clear story of sustained, heavy use. Between March 2023 at 183,913 miles and April 2026 at 250,231 miles, the car covered 66,318 miles in just over three years, averaging roughly 22,000 miles per year. That is significantly higher than the 17-year average of approximately 14,700 miles per year. The jump from 206,351 miles in March 2024 to 233,706 miles by April 2025 alone accounts for 27,355 miles in thirteen months. High annual mileage at this stage of a vehicle's life accelerates wear on consumables, drivetrain mounts, and structural underbody components, making close physical inspection essential. The recurring theme across the MOT history is suspension degradation. Front suspension arm bushes were flagged as worn in March 2024 and excessively worn on the offside front during the failed test, then rectified before the retest the next day. A rear coil spring corrosion advisory appeared in March 2023, and by April 2026 a rear suspension component was again noted for corrosion. This is not alarming in isolation for a 17-year-old vehicle with this mileage, but it does indicate the underbody and suspension mounting points have been exposed to long-term moisture and road salt without fully effective protection. A buyer should physically inspect all suspension bushes, coil springs, and subframe mounting points for pitting, cracking, and advanced corrosion, paying particular attention to the rear assembly where warnings have recurred. Braking components also drew attention during the 2024 failure, with rear brake pads below 1.5 mm and rear discs assessed as seriously weakened. These were replaced before the retest, and no further brake defects have appeared since. Still, given the high mileage and the car's age, a buyer should verify the condition of all brake discs, pads, and calipers, checking for uneven wear, binding, or lipping. The minor oil leak advisory from April 2026 warrants investigation too. A compression test and a visual check of the valve cover gasket, camshaft cover seals, and oil cooler lines would help determine whether this is a seep or a developing issue that could become costly if left unattended.