2004 Audi A4 1.9L Diesel · BT03 WEL

The vehicle remains roadworthy but the maintenance trend shows a clear progression of aging rubber components and suspension wear. While the most recent test in January 2026 at 110,879 miles passed, it identified minor deterioration in both rear brake hoses. This follows a period of increasing advisories regarding suspension bushes and linkages across the previous three years. The vehicle is currently operating in a state where age-related material fatigue is reaching the end of its functional life despite the relatively low mileage. At 22 years old, the recorded mileage of 110,879 miles represents a low average of approximately 5,040 miles per year. The data shows a consistent usage pattern, with roughly 5,000 miles covered between the January 2024 and January 2025 tests. However, low mileage often masks the accelerated degradation of rubber deks, bushings, and hoses due to time exposure, which explains the recurring issues with anti-roll bar linkages and suspension arm bushes noted in the history. A buyer must focus their physical inspection on the front suspension geometry, as the record flags repeated issues with the upper suspension arms, anti-roll bar linkages, and ball joints dating back to 2023. The minor oil leak noted in 2023 requires close monitoring to ensure it has not worsened into a significant gasket or seal failure. Furthermore, the deteriorated rear brake hoses identified in the 2026 test require immediate replacement to prevent sudden failure under pressure. The previous ABS and electronic stability control faults that caused the 2023 failure should be verified as resolved to ensure the underlying sensor was properly rectified and not merely cleared.