2015 Audi A4 2.0L Diesel · MD15 TTY

The 2015 Audi A4’s most recent MOT tests, conducted just over two years ago in May 2025, reveal a concerning pattern of repeated failures despite identical mileage readings. Both tests at 110,812 miles—one passing, the other failing—suggest either a test centre error or a critical component narrowly passing inspection before degradation. The lack of recorded defects in either test implies the failure was likely due to a single, intermittent fault rather than cumulative wear. However, the absence of advisories or repeated issues in prior tests means no clear trend of worsening problems. Still, the double-test anomaly at the same mileage warrants immediate scrutiny of systems prone to sudden failure, such as brake hydraulics or suspension linkages. The vehicle’s mileage progression shows consistent usage, averaging around 10,074 miles annually, which aligns with typical expectations for a car of this age. There are no obvious gaps or spikes in service intervals, though the MOT history only spans five years, leaving later years unaccounted for. The most notable observation is the identical mileage readings for back-to-back tests in May 2025, which could indicate either a reset or a period of minimal driving. Without service records, it’s impossible to confirm whether critical maintenance—such as brake fluid changes, suspension servicing, or timing belt inspections—was conducted at the manufacturer-recommended intervals. Given the lack of recorded defects in prior tests, the most prudent areas for a prospective buyer to investigate in person would be the brake system and suspension components. The repeated failure at the same mileage suggests a potential issue with brake binding or hydraulic pressure, so caliper wear, master cylinder condition, and brake fluid contamination should be checked. Suspension bushes and coil springs, particularly at the rear, are common failure points in Audi A4s of this age, and any play in steering or uneven tyre wear would indicate deterioration. Structural corrosion, especially around wheel arches and sills, should also be examined, as this is often overlooked until it compromises structural integrity. Finally, the exhaust system and emissions controls, which were not flagged in past tests, may now require attention given the vehicle’s age and mileage.