2016 Audi A4 1.4L Petrol · DN65 PRX

The vehicle most recently passed its MOT on 4 March 2026, though three advisories were recorded at that test. These were an offside rear coil spring mounting corroded but not seriously weakened, a nearside rear shock absorber with light oil misting, and an offside rear shock absorber with light oil misting. The 2025 and 2024 tests also passed, both with advisories noting corrosion at the offside rear lower coil spring mounting. Looking at the broader pattern, the test history shows a vehicle that has passed every annual inspection without any failures or dangerous defects, but a recurring theme of rear suspension corrosion has now been flagged over three consecutive tests, alongside emerging rear damper seepage. The maintenance trend is best described as broadly stable rather than deteriorating, although the persistence of the rear coil spring mounting advisory warrants attention because corrosion in this area, if left unchecked, can progress toward structural weakening and eventual spring seat failure. The recorded mileage of 46,699 miles over a ten-year period equates to an average of roughly 4,670 miles per year, which is well below typical annual usage for a vehicle of this age and class. Such low mileage suggests the car has either been used predominantly for short journeys or has spent extended periods standing unused. Mechanically, this profile carries its own considerations; limited running prevents the engine and drivetrain from reaching and sustaining full operating temperature, which can accelerate internal condensation, encourage oil dilution from short trips, and lead to carbon and moisture build-up in the oil. Conversely, prolonged standing periods tend to promote corrosion on exposed metallic components such as brake discs, caliper slide mechanisms, underbody suspension parts, and exhaust mountings, which is consistent with the advisories already recorded. Because the rear coil spring mounting corrosion has been noted at three successive tests, this area should be physically inspected for any visible flaking, section loss, or cracks in the spring seat or surrounding body structure. On a test drive, listen for any clonks or rattles from the rear suspension over uneven surfaces, as these can indicate advanced deterioration of the spring seat or its mounting. The light oil misting on both rear shock absorbers is presently cosmetic, but it warrants monitoring; progressive leakage will eventually compromise damping, leading to a looser, less controlled ride and potential instability under load. Any sign of wetness below the damper body, staining on the spring, or an increase in the size of the damp area would suggest replacement is due in the near term. Given the low annual mileage, several time-based items should also be verified regardless of what the MOT history shows. Tyres on a low-use vehicle are more prone to sidewall perishing and cracking from age rather than wear, so inspect the sidewalls for hairline fractures even if the tread depth appears adequate. Check for brake disc corrosion, particularly if the car has stood for long periods, and confirm that the calipers are not binding, as seized caliper slide pins are common on low-mileage vehicles and can cause uneven braking or pulling to one side. Confirm the age and condition of the 12 volt battery, as batteries used sparingly often degrade within four to six years and may need replacement. Finally, verify that the vehicle has been serviced annually, ideally with documented brake fluid changes every two years and coolant renewals at the manufacturer specified intervals, because calendar-based fluid degradation will occur regardless of how few miles are covered each year.