2021 Audi A4 S Line 35 Tfsi Mhev 2.0L Petrol · YA21 FST

The most recent DVSA MOT test on 2026-04-14 resulted in a passing outcome, marking a positive shift from the previous failure on 2026-04-13, which highlighted dangerous defects in both front tyres below the legal minimum tread depth of 1.6mm. This reversal suggests a resolution to the tyre-related issues, though the vehicle’s history reveals a pattern of recurring advisories and major faults, particularly concerning the rear suspension and tyres. The advisories from 2024-03-27 regarding corroded coil spring mountings—both near and offside rear—persist without escalation, indicating a stable but ongoing concern that may require proactive attention. The vehicle’s MOT trend thus appears to be improving in terms of roadworthiness compliance, though the underlying mechanical wear and potential long-term structural integrity of the suspension components warrant continued vigilance. The vehicle’s recorded mileage of 46,418 miles at the time of assessment represents a reasonable annual usage rate of approximately 9,284 miles per year, which is typical for a five-year-old car driven under normal conditions. This mileage distribution suggests consistent, moderate usage without extreme gaps or rapid accumulation that might accelerate wear on critical components like brakes, suspension, and drivetrain elements. However, the presence of a rear tyre with a deep cut reaching the ply or cords and another tyre worn close to the legal limit indicates that the vehicle has been subjected to significant tyre wear, likely from frequent or heavy use, uneven loading, or poor alignment. This pattern underscores the importance of addressing tyre replacement promptly to prevent further compromise of grip, safety, and potential structural damage from overinflated or underinflated tyres. Given the recent MOT passing and the recurring advisories on the rear coil spring mountings, the prospective buyer should conduct a thorough inspection of the suspension system, focusing on the rear lower coil springs and their mounting points. Look for signs of further corrosion, particularly around the mounting brackets, which may indicate underlying fatigue or stress concentration that could lead to spring failure or bush wear. During a test drive, listen for unusual clunking or rattling noises from the rear axle area, which could signal loose or worn suspension components. Additionally, inspect the rear tyres for uneven wear patterns, which may point to misalignment, camber issues, or suspension misalignment. If the tyres are worn to the legal limit or beyond, replace them immediately to avoid compromising road safety, especially given the presence of a deep cut in one tyre. For the broader vehicle inspection, check the tyre sidewalls for signs of perishing or cracking, which can occur even with moderate mileage over time, particularly in the UK’s variable climate. Verify the condition of the 12-volt battery and associated wiring, as prolonged standing or infrequent use can lead to battery discharge or corrosion of terminals. Inspect the brake system for signs of corrosion on the discs, particularly near the caliper pistons, which may indicate standing corrosion or binding. If the vehicle has been stationary for extended periods, the brake fluid may have degraded due to moisture absorption, so a fluid change should be considered. Finally, review the service history for the suspension components, including coil springs, shock absorbers, and bushings, to ensure they have been serviced according to the manufacturer’s recommendations. Given the vehicle’s age and mileage, a comprehensive fluid top-up—particularly brake fluid, coolant, and transmission fluid—should be performed to ensure optimal performance and longevity.