2008 Audi A4 2.0L Diesel · MT08 UUO

The 2008 Audi A4 presents a mixed maintenance trend, currently passing its most recent MOT in October 2025 at 194,546 miles but carrying active structural corrosion advisories. The vehicle transitioned from a failed test in September 2024—due to a fractured nearside rear coil spring and a binding offside front wheel—to a passed status later that autumn. This indicates the immediate safety-critical failures were rectified, yet the underlying issue of corrosion persists. Recent tests show recurring advisories for corroded coil springs and a corroded rear sub-frame, suggesting the structural integrity is gradually worsening rather than stabilizing. Covering roughly 10,808 miles annually, the mileage accumulation aligns exactly with the typical usage profile for an eighteen-year-old vehicle. The recorded intervals show consistent, gradual accumulation without significant gaps or sudden spikes in distance. Between October 2022 at 171,095 miles and October 2025 at 194,546 miles, the vehicle covered approximately 23,451 miles over three years. This steady component wear aligns with the gradual degradation of suspension and structural elements observed in the test history. A prospective buyer must thoroughly inspect the suspension and braking components before purchase. The recurring wear of front upper suspension arm pins and bushes flagged in 2022 and 2023 suggests previous neglect of front-end maintenance, though the absence of these advisories in 2024 and 2025 implies eventual replacement. More concerning is the binding offside front wheel recorded during the September 2024 test. While the October 2025 pass indicates the issue was temporarily resolved, a binding caliper often points to a sticking piston or collapsed brake hose that could deteriorate again, requiring a physical check for uneven brake pad wear and smooth disc rotation. The most significant long-term risk lies in the chassis corrosion. The tester flagged a corroded rear sub-frame in October 2025, alongside corroded offside front and rear coil springs. The nearside rear coil spring fractured in September 2024, forcing an immediate failure, yet corrosion advisories on the remaining springs remain active. This pattern implies the vehicle has been exposed to moisture and road salt without adequate underbody protection. A buyer must verify the structural soundness of the sub-frame mounting points and closely examine the coil springs for deep pitting that could lead to future fractures.