2021 Audi Q4 E-Tron S Line Launch ED 40 Electric · ST71 FEO

The most recent DVSA MOT test for the 2021 Audi Q4 E-Tron S Line occurred on 24th September 2025, resulting in a clean pass with no mechanical failures or advisories, following a similarly unblemished outcome just over a year prior on 4th October 2024. This consistent performance across two consecutive MOTs suggests a stable maintenance record, with no evidence of recurring defects or systemic wear issues that might indicate underlying mechanical degradation. The absence of minor defects—such as those often found in early-life usage—further supports that the vehicle has been treated with reasonable care, though the single recorded windscreen damage, classified as a non-adversarial obstruction to vision, does not impact roadworthiness and may simply reflect incidental wear rather than a maintenance oversight. The recorded mileage of 35,551 miles for a vehicle aged five years represents a moderate annual usage rate of approximately 7,110 miles per annum, which is within the expected range for a car of this model and age. This pace does not suggest excessive wear from high-mileage accumulation, though it does imply that the vehicle has not been subjected to particularly light or intermittent use, which could otherwise lead to issues like standing corrosion in the undercarriage or fluid degradation from infrequent operation. Conversely, there is no indication of rapid mileage buildup that might accelerate wear on components such as suspension bushings, brake pads, or drivetrain seals, though a thorough inspection would still be prudent to confirm that consumables like brake fluids and transmission oil have been serviced according to the manufacturer’s recommendations. Given the clean MOT history and the vehicle’s age and mileage profile, the buyer should conduct a comprehensive physical inspection to address both age-related and usage-specific concerns. First and foremost, examine the tyres for signs of sidewall perishing or cracking, which can occur even at moderate mileages over time, particularly in colder climates or with prolonged storage. Check for uneven wear patterns that might indicate misalignment, suspension issues, or steering problems, and verify that the tread depth meets legal requirements. Additionally, inspect the undercarriage for evidence of rust or corrosion, especially around the wheel arches, exhaust system, and suspension mounts, as standing for extended periods can accelerate corrosion in these areas. For fluid systems, focus on the brake fluid reservoir, which should be checked for contamination or moisture ingress, as this can lead to brake failure or corrosion of hydraulic components. The 12-volt battery should be tested for voltage output and overall health, particularly given the electric powertrain, as battery degradation can affect both the drivetrain and electrical systems. The exhaust emissions system should be visually inspected for leaks or discolouration, and the catalytic converter’s function can be assessed by listening for unusual noises during acceleration or by checking for a reduction in exhaust smoke during a test drive. Finally, verify that the service book or service history records have been updated, especially for the electric drivetrain components such as the inverter, motor, and high-voltage battery pack, as these require adherence to a strict maintenance schedule to prevent long-term reliability issues. If any of these checks reveal concerns, immediate attention should be given to address them before they escalate into more costly repairs.