2016 Audi A6 2.0L Diesel · GD66 MLZ

The most recent MOT test conducted in May 2026 resulted in a pass, though it introduced a new advisory regarding an oil leak that was not deemed excessive. Prior to this, the vehicle demonstrated a highly stable maintenance history with several consecutive years of clean passes and no recorded defects between 2022 and 2025. The emergence of the oil leak advisory suggests a slight shift in the vehicle's mechanical condition, likely representing the onset of age-related seal or gasket degradation common in high-mileage executive vehicles. With 117,107 miles recorded over a ten-year period, the vehicle has averaged approximately 11,711 miles per year. This represents typical, consistent usage for an Audi A6, suggesting the car has been used regularly enough to prevent the issues associated with long periods of standing, such as brake binding or battery discharge, but has not been subjected to the extreme wear seen in high-mileage commercial use. At this stage of its lifecycle, the vehicle is entering a period where wear-and-tear components, including suspension bushes, shock absorbers, and various drivetrain seals, require more frequent scrutiny. The recent oil leak advisory is the most significant point for immediate investigation. During your inspection, you should examine the engine bay and the underside of the vehicle for signs of weeping around the rocker cover, oil filter housing, or the sump. On a test drive, listen for any irregular engine noises and be alert for the scent of burning oil, which could indicate a leak is contacting the exhaust manifold. Additionally, while the tyre wear advisory from 2021 has since passed, you should still inspect the current tyres for uneven wear patterns, which could signal worn suspension components or alignment issues that may have developed since the last inspection. Given the vehicle's age, you should also perform several non-MOT specific checks. Inspect the tyre sidewalls for any signs of cracking or perishing, which can occur due to age rather than tread depth. Check the brake discs for excessive corrosion or scoring and ensure the calipers are operating smoothly without binding. It is also advisable to verify the service history to confirm that oil and fluid changes have been carried out at appropriate intervals, as the noted leak could lead to accelerated component wear if oil levels are not strictly monitored. Finally, check the condition of the 12V battery and the age of the brake and coolant fluids to ensure they have not degraded due to time-based chemical breakdown.