2018 AUDI Q52.0L Diesel

The 2018 Audi Q5 has demonstrated a concerning inconsistency in its MOT history, with two consecutive failures in March 2026—despite passing the previous test just seven days prior—before finally passing again on the 16th. This abrupt fluctuation at 73,630 miles, where no defects were recorded on the failed test but the vehicle ultimately failed, suggests either a minor oversight in the initial inspection or a critical component that only manifested under specific test conditions. The most recent pass on 16 March 2026, however, indicates the vehicle has since met the minimum roadworthiness standards, though the pattern raises questions about reliability. No defects were logged in any of the previous tests, which implies the failures were likely procedural or tied to specific MOT tester thresholds rather than progressive mechanical issues. The recorded mileage of 73,633 miles over eight years aligns with typical usage for this model, averaging around 9,200 miles annually. There are no obvious gaps or spikes in mileage between tests, with the most recent interval covering just 6,209 miles since the March 2025 failure—suggesting consistent, moderate use without prolonged periods of neglect. The lack of mileage jumps or extended periods between services also implies the vehicle has not been left stationary for extended durations, which could have exacerbated corrosion or suspension degradation. However, the repeated MOT failures at the same mileage band warrant scrutiny beyond basic wear items. Given the history, a buyer should prioritise an independent inspection of the braking system, particularly the rear calipers and pads, as binding brakes were the most common cause of MOT failures in similar Audi models at this mileage. The suspension components—front and rear bushes, coil springs, and strut mounts—should be examined for excessive play or corrosion, as these are often overlooked until they fail. Additionally, the exhaust system should be checked for leaks or excessive rust, especially around flanges and joints, given the vehicle’s age. While no structural faults were recorded in the MOTs, a thorough underbody inspection for corrosion in wheel arches and sills is advisable, as this is a common silent failure point in Q5s of this era. The absence of defects in prior tests does not guarantee these areas are unaffected, particularly if the vehicle has been driven in salted or coastal environments.