2021 Volkswagen Transporter T30 H-Line TDI S-A 2.0L Diesel · AF71 WDY

The most recent DVSA MOT test on 13 May 2026 resulted in a fail on a dangerous engine management issue, with the engine malfunction indicator lamp either inoperative or indicating a fault under Section 8.2.2.2 (g). This defect is significant because the MIL is a primary diagnostic warning that alerts the driver to emissions, sensor, or powertrain control faults which can affect engine performance, fuel economy, and exhaust compliance. The presence of an active or inoperative MIL on a 2021 T30 TDI S-A would warrant a pre-purchase diagnostic scan using VCDS or a compatible VW tool to identify stored fault codes in the engine, emissions, and DPF systems, and the defect should be fully rectified and evidenced with a subsequent pass before purchase is considered. The under trays advisory recorded on the same date is common on late-model Transporter vans and does not by itself indicate a fault, but it does mean visual checks of some underbody components for oil leaks, corrosion, or component integrity are physically obstructed. The MOT history otherwise shows a relatively stable maintenance profile, with passes on 29 May 2025 and 25 September 2024, the latter carrying advisories for nearside front and offside rear tyres approaching legal tread limits and a major failure on a nearside rear tyre that fell below the 1.6mm legal threshold plus a broken rear headlamp levelling mechanism. With just over 44,500 miles recorded over five years of life, the vehicle is running at approximately 8,900 miles per year, which is broadly typical for a commercial T30 of this age and consistent with steady rather than intensive use. There are no significant mileage gaps or sudden accumulations within the recorded history, and the overall pattern points to a vehicle that has been in regular service rather than left standing for prolonged intervals, which is generally favourable for the preservation of the diesel particulate filter, turbocharger, battery, and brake system. From a buyer inspection perspective, the September 2024 tyre advisories suggest attention to be paid to the current condition of all four tyres, particularly the nearside front and offside rear positions which historically have worn at an accelerated rate. On a test drive, listen for any pulling to one side which may indicate uneven camber wear, and inspect the inner and outer shoulders for feathering or scalloping. Given the failed rear headlamp levelling adjuster, check that both rear lamps can be manually or automatically levelled and that the adjuster mechanism is intact, as this is a straightforward but important MOT-relevant item. Confirm that the service book and digital service record are stamped or logged in accordance with manufacturer schedules, particularly for the timing belt replacement interval which on the 2.0 TDI engine is typically due or approaching at this age and mileage. Beyond the recorded defects, the prospective buyer should conduct age- and mileage-appropriate checks. Inspect all tyres for sidewall perishing or cracking from age even if tread depth remains adequate, examine the brake discs for any significant lipping or surface corrosion from light use, and verify that the 12V battery holds a healthy charge, particularly if the vehicle has been used for short shuttle runs. Check the condition of the coolant, brake fluid, and dual-mass flywheel or DSG transmission fluid service history as these are time-based rather than mileage-based maintenance items. On the test drive, listen for any suspension clonks over uneven surfaces, confirm smooth auto gear changes without hesitation or shunt, and ensure the DPF has opportunity to complete active regenerations by sustained higher-speed running. Finally, request evidence that the engine MIL fault has been fully diagnosed and rectified with a current post-rectification MOT pass, as this remains the single most material outstanding item in the vehicle's recent test history.