2012 Audi A6 2.0L Diesel · J77 BAF

The 2.0 TDI diesel in the C7-generation A6 typically returns 50-60 mpg on a long motorway run, with combined-cycle figures closer to 45-50 mpg depending on driving style. Annual road tax for a 2012 diesel of this engine size sits in a moderate band, though diesel vehicles no longer benefit from the cheapest rates. Insurance is likely to fall into group 30-35 range, reflecting the car's executive status and performance. Servicing and parts are pricier than mass-market equivalents, with main dealer visits easily exceeding £300 for an interim service and £500+ for a major service. Estimated annual running cost: £1,400-£1,800.

Given that no specific defect codes were recorded on the single 2024 MOT failure, the buyer cannot rely on the history alone to rule out issues. Focus the inspection on areas the A6 C7 is known for: the 2.0 TDI engine for oil consumption, timing chain stretch (less of an issue on this engine than the 3.0 TDI but worth checking), and turbo actuator wear. Inspect the suspension carefully — anti-roll bar links and bushes appear as a top failure reason across the model range according to aggregate data, so check for clonking over bumps and uneven tyre wear. Headlamp condition and alignment should be examined, as headlamp issues are the most common MOT failure point for this model overall.

Check the alloy wheels for kerb damage (common on executive saloons) and confirm tyre brands and sizes match across axles. Inspect the exhaust system for corrosion, particularly around the DPF and rear silencer, as replacement can be costly on diesel models. Look underneath for signs of fluid leaks from the engine, gearbox, or differential. Finally, verify that the mileage on the dashboard matches the V5C logbook and any service history, as executive saloons with higher mileages are sometimes targeted by clockers.