2005 Audi A6 3.0L Diesel · ML05 EFF

As a 2.9L diesel, this A6 will fall into a higher insurance group and tax band compared to smaller executive saloons. Fuel economy will depend heavily on maintenance, but expect typical diesel performance for a vehicle of this age and weight.

Maintenance costs are likely to be higher than average due to the age of the vehicle and the specific components flagged in the MOT history, such as sub-frame bushes and suspension mounts. Budget for potential structural repairs or component replacements to manage the documented corrosion.

Focus heavily on the underside of the car. The MOT records specifically mention corrosion on the rear sub-frame (2025), rear suspension mounting areas (2025), and rear end components (2024). Use a torch to check if this corrosion is surface-level or if it is progressing toward structural weakness.

Check the front sub-frame specifically, as the 2025 MOT noted a worn pin or bush. You should also inspect the anti-roll bar setup; the history shows a previous failure for an 'unsafe modification bend' in 2023 and deterioration of dust covers in 2024. Finally, check for any signs of the oil leak noted in the October 2025 MOT to ensure it remains 'not excessive'.