2020 Audi A4 2.0L Diesel · WN69 VOG

The most recent MOT test on 2025-02-25 resulted in a passing grade, though it followed a failure on 2025-02-19, indicating a recurring but not worsening pattern of brake-related advisories. The consistent presence of thin brake pads across all four positions and worn front brake discs suggests a systematic wear issue likely linked to prolonged or aggressive braking habits, potentially exacerbated by suboptimal brake fluid condition or misaligned brake components. The advisories from both tests remain non-failing, but the repetition warrants closer attention, as it may signal underlying wear progression in the hydraulic system or caliper functionality. The 2024-01-15 MOT also noted a nearside rear tyre approaching the legal limit, reinforcing the need for proactive tyre management to avoid premature replacement and maintain traction. The vehicle’s recorded mileage of 47,497 miles at the time of this assessment represents a reasonable annual usage rate of approximately 7,916 miles, which is typical for a six-year-old Audi A4 under mixed conditions. Such mileage does not inherently indicate excessive wear beyond what is expected for its age, but the brake advisories—particularly the thin pads and worn discs—could imply either consistent high-demand braking or a lack of timely pad replacement during previous servicing. The absence of significant mileage gaps suggests the vehicle has been in regular use, which may have accelerated consumable wear, especially in the braking system where friction materials and discs are particularly susceptible. However, the lack of higher mileage accumulation (e.g., over 10,000 miles annually) mitigates concerns about severe drivetrain or suspension wear, though further inspection would still be prudent to confirm this. For the prospective buyer, the primary focus should be on addressing the recurring brake advisories, as they indicate a need for immediate attention to prevent further wear or potential hydraulic system compromise. Inspect the brake pads and discs for even wear—uneven wear or glazing could signal misalignment or binding calipers—and listen for any unusual braking noises, such as squeaking (indicating pad wear) or grinding (suggesting metal-to-metal contact from worn pads or damaged discs). Check for brake fluid leaks under the vehicle, as low fluid levels or contamination can exacerbate pad wear. Additionally, verify that the brake fluid is free of moisture and corrosion inhibitors, as this can affect braking performance and pad longevity. On the test drive, observe for brake pedal softness, vibration, or a pulling sensation, which may indicate warped discs, warped or binding calipers, or hydraulic issues. Beyond the brakes, conduct a thorough inspection of the tyres, focusing on the nearside rear tyre noted in the 2024 MOT, as it may require replacement soon to meet legal limits. Check for uneven wear patterns, which could signal alignment or suspension issues, and inspect for sidewall cracks or perishing, which are more likely to develop with age even at moderate mileage. Given the vehicle’s age and the potential for prolonged standing, examine the undercarriage for signs of corrosion, particularly around the wheel arches, exhaust system, and suspension components, as standing water or road salt can accelerate rusting. Test the 12-volt battery and associated electrical systems, as a weak battery can contribute to brake system inefficiencies and other electrical issues. Finally, since the vehicle’s last MOT was in early 2023, consider scheduling a service to confirm that oil, coolant, and transmission fluid are up to date, as these fluids degrade over time regardless of mileage, and their degradation can impact drivetrain and suspension longevity.