2007 Audi A4 2.0L Diesel · KV07 AAC

The most recent MOT test conducted on the 2006 model year Audi A4 on 2026-03-13 resulted in a passing outcome, though it was followed by a subsequent failure on the same date due to persistent issues with the supplementary restraint system (SRS) and electronic stability control (ESC) faults, alongside recurring brake-related advisories. The pattern of MOT results over the past four years reveals a mixed maintenance history, with the vehicle passing in 2022 but failing again in the same year due to the same critical faults, particularly the SRS warning lamp and brake hose deterioration. This suggests a trend of unresolved or recurring mechanical issues, particularly within the braking system and safety-related electronics, which could indicate underlying wear or component failure that has not been fully addressed. The fact that the vehicle passed in March 2026 but failed shortly after highlights the importance of addressing these persistent faults promptly, as they may compromise both road safety and long-term reliability. The vehicle’s recorded mileage of 134,640 miles for a 19-year-old Audi A4 reflects a moderate annual usage rate of approximately 7,086 miles per year, which is within the expected range for a car of this age and model year. However, the MOT records do not provide explicit details on periods of inactivity or low-mileage usage, which could have contributed to accelerated wear in certain systems. Given the mileage, the suspension, brakes, and drivetrain components are likely experiencing significant usage wear, particularly the brake discs, pads, and hoses, which have been flagged multiple times as worn or deteriorated. The rear brake hoses, for instance, were found to be excessively deteriorated in 2022, indicating a potential need for replacement to prevent brake fluid leaks or system failure, which could lead to reduced braking performance or complete loss of function. For the prospective buyer, the most critical immediate concerns stem from the recurring brake-related advisories and the unresolved SRS and ESC faults. Prioritise a thorough inspection of the brake system, focusing on the condition of the brake discs, pads, and hoses—particularly the rear hoses, which show signs of severe corrosion and deterioration. Listen for uneven brake pedal travel or a spongy feel, which may indicate air in the system or hose failure. Also, check for brake shudder or pulsation during braking, which could signal warped discs or internal brake component wear. On a test drive, monitor for any warning lights persisting after the ignition is turned off, as this may indicate lingering SRS or ESC faults that require professional diagnosis. Additionally, address the parking brake efficiency, as its ineffectiveness could lead to unsafe stopping conditions, especially in an emergency. Beyond the immediate concerns, conduct a comprehensive physical inspection of the vehicle’s structural and fluid integrity. Given the age and mileage, inspect the tyres for sidewall cracking or perishing, which can compromise their structural integrity and lead to sudden blowouts. Check for signs of standing corrosion on the underbody, particularly around wheel arches, exhaust components, and the engine bay, as prolonged exposure to moisture can accelerate rust formation. Verify the 12V battery health, as older vehicles of this age may struggle with electrical system demands, and test the alternator output to ensure it maintains the battery charge. Lastly, consider the calendar-based servicing of fluids, such as the engine oil, brake fluid, and coolant, as these can degrade over time even with low mileage, especially if the vehicle has been stationary for extended periods. Ensure service records are up to date, particularly for the last oil change and fluid top-ups, to confirm compliance with manufacturer-recommended maintenance intervals. If any of these checks reveal further issues, address them promptly to avoid escalating mechanical problems or safety risks.