2017 Audi A6 2.0L Diesel · ML67 RZX

The vehicle most recently passed its MOT on 3 July 2026, but the overall maintenance trend is concerning and appears to be deteriorating. While the car has a history of passes, the emergence of recurring advisories and a previous failure involving an inoperative engine management light suggests a shift from proactive to reactive maintenance. The 2022 dangerous failure for critically worn brake pads indicates a period of significant neglect regarding essential safety consumables, and the current trajectory shows increasing wear and tear on structural and suspension components. With a recorded mileage of 120,368 miles over approximately nine years, this Audi A6 has covered an average of 13,374 miles per year. This is considered high usage for this vehicle class, which typically implies accelerated wear on the drivetrain, suspension geometry, and interior trim. Such high mileage increases the likelihood that major service items, such as the timing belt or water pump, may be due for replacement or have already been addressed, necessitating a thorough review of the service history to ensure long-term reliability. Prospective buyers must pay close attention to the recurring advisory regarding rear sub-frame corrosion. While currently noted as not seriously weakened, corrosion is a progressive condition that can eventually compromise structural integrity and lead to costly welding repairs. During a physical inspection, use a torch to examine the rear chassis and sub-frame for scaling or pitting. Additionally, the worn inner bushes on both front lower suspension arms are now noted. On a test drive, listen for clunks or knocks when traversing uneven road surfaces or during low-speed manoeuvring, and check for uneven tyre wear across the front axle, as worn bushes often lead to poor wheel alignment. The history of fluctuating rear service brakes and the previous dangerous failure for brake pads suggest a need for a comprehensive brake system evaluation. During the test drive, feel for any shudder or pulsation through the brake pedal, which could indicate warped discs or binding calipers. The 2025 failure for an inoperative engine management light is also a significant red flag; ensure that no warning lights are currently illuminated on the dashboard and verify that the vehicle is not operating in a restricted limp mode. Given the high mileage, it is imperative to verify that all calendar-based fluid changes have been performed and that the gearbox oil has been refreshed to prevent premature transmission wear.