2008 Audi A4 2.0L Diesel · KM08 RDO

Corrosion of the rear subframe and recurring issues with brake hose deterioration represent the primary mechanical risks identified in the recent MOT history. While the vehicle passed its most recent test on 7 February 2026, the documentation shows a persistent pattern of advisories concerning the integrity of the braking system and various suspension components. Specifically, the rear subframe was noted as corroded but not seriously weakened, a condition that requires close monitoring to ensure structural integrity does not degrade further. The brake hoses have appeared on multiple tests since 2020, with the latest record flagging a slightly deteriorated nearside rear hose, indicating a long-term trend of rubber perishing or ferrule corrosion that has not been fully rectified. The vehicle has covered 142,738 miles over its eighteen-year lifespan, which equates to an average annual usage of approximately 7,930 miles. This mileage profile is consistent with typical age-related wear for a vehicle of this era. Mechanically, this level of usage suggests that components such as suspension bushes, brake discs, and tyres will be subject to standard fatigue. The steady accumulation of miles without significant gaps in the MOT testing history indicates a regular usage pattern, though the cumulative advisories for suspension arm bushes and brake components reflect the expected wear on consumables and rubber elements over a long-term service life. Prospective buyers should pay particular attention to the suspension and braking systems during a physical inspection and test drive. The MOT history shows frequent advisories for worn upper suspension arm pins and bushes on both the nearside and offside, as well as anti-roll bar linkages. On the road, these defects often manifest as knocking or clunking noises when driving over uneven surfaces or speed bumps, and may cause imprecise steering response. Given the repeated mentions of worn bushes across several years, a thorough check of the front and rear suspension geometry and the condition of the rubber bushings is essential to determine if the wear has progressed beyond the recorded advisory levels. The recurring advisories regarding brake hoses and the noted subframe corrosion necessitate a focused inspection of the underside of the car. The deterioration of the nearside rear brake hose and previous reports of corrosion to the ferrules suggest that the hydraulic lines may be nearing the end of their reliable service life. During a test drive, the braking performance should be evaluated for any sponginess in the pedal or a lack of consistent pressure, which could indicate internal hose failure or fluid issues. Furthermore, the subframe corrosion should be visually inspected for any signs of scaling or significant material loss that could compromise the vehicle's structural stability.