2021 Audi S5 Vorsprung TDI Mhev Quat A 3.0L Diesel · S1 MWV

The Audi S5 presents a clean and stable mechanical picture. The most recent test, conducted on 20 March 2026 at 54,990 miles, passed with zero defects recorded. This is a strong result for a five-year-old performance diesel. The maintenance trend is clearly improving. A previous advisory for front tyre wear appeared in the May 2024 test at 30,944 miles, but that issue has since been resolved, with the subsequent two tests showing no further faults. The mileage accumulation is consistent and typical for the vehicle's age. Between the May 2025 test at 45,360 miles and the March 2026 test at 54,990 miles, the car covered 9,630 miles over roughly ten months. This equates to roughly 11,500 miles per annum, which sits comfortably within normal usage parameters for a performance estate. There are no suspicious gaps in the record or sudden spikes in odometer readings. The recorded mileage aligns perfectly with the vehicle's age, suggesting regular and sustained use rather than prolonged standing. Despite the clean MOT record, a prospective buyer must look beyond the paperwork. The 2024 advisory specifically flagged the front tyres wearing close to the legal limit and wearing on the edge at 30,944 miles. Edge wear on a Quattro S5 often points to aggressive driving, under-inflation, or worn suspension geometry, specifically tracking or worn suspension bushes. A physical inspection should closely examine the inner edges of the current front tyres and check the condition of the front lower arms and bushes. The turbocharged diesel engine and MHEV system demand attention to the engine oil condition and the functionality of the 48-volt electrical system. While no exhaust emissions advisories have appeared, diesel particulate filter health should be verified, particularly if the car has been used predominantly for short journeys. The braking system and structural underbody require a thorough check for corrosion, especially around the subframes and suspension mounting points, to ensure long-term structural integrity.