2017 Volkswagen Caddy 2.0L Diesel · GD17 UJM

A persistent engine management warning light issue dominates the roadworthiness profile of this 2017 Volkswagen Caddy, with the Engine MIL inoperative or indicating a malfunction defect appearing as a Major on three separate test occasions between May 2023 and January 2026. This recurring flagging suggests an unresolved powertrain control or emissions system fault that has not been rectified across multiple test cycles, and any prospective buyer should anticipate that diagnostic work, potentially involving the diesel particulate filter, EGR valve, or sensor circuitry, will be required to clear the warning permanently. Beyond the MIL issue, the January 2026 test pass was narrowly achieved four days after a failed presentation that combined a malfunction indicator with two straightforward Major defects (a torn offside front wiper blade and an inoperative offside rear upper position lamp), alongside a Dangerous defect for an offside rear tyre with exposed ply or cords on the inner tread. The pattern across the record is one of intermittent compliance rather than sustained roadworthiness, with two failures and one advisory-laden pass recorded in the most recent three test cycles. Annual mileage of approximately 7,314 miles is broadly consistent with average usage for a nine year old light commercial vehicle, and the recorded odometer progression from the 2022 test through to January 2026 indicates steady, modest accumulation without any large gaps or sudden jumps. This level of use is sufficient to keep mechanical consumables exercising but is low enough that age-related deterioration of rubber components, brake fluid, and underbody protection should still be expected. The vehicle has been presented for testing consistently each year, with no extended periods off the road, so there is no evidence of a long-term lay-up that would necessitate particular concerns around standing-start battery condition or seized brake calipers. The mileage itself does not flag any unusual mechanical risk beyond the normal wear profile associated with a working Caddy of this vintage. Notably, the same offside rear tyre inner-edge wear pattern that was flagged as Dangerous in January 2026 had been recorded as an advisory at the preceding test, demonstrating that the tyre issue developed over the course of the year rather than appearing suddenly. The repeated inner-edge tyre wear on both the offside front and offside rear wheels across multiple test cycles is a specific mechanical concern worth investigating on a physical inspection, as uneven inner-edge wear on a Caddy often points to worn suspension bushes, sagging coil springs, or a geometry issue such as incorrect camber settings that should be measured professionally. The 2024 failure additionally recorded a nearside front arm bush that had split from the arm, a known wear item on this platform, and the buyer should listen carefully for clonking or knocking from the front suspension over speed humps and uneven road surfaces, particularly cold starts when bushes are at their stiffest. The 2023 advisory for rear brake pads wearing thin and the later Dangerous offside front brake pad defect in 2024 indicate that braking components have been worked relatively hard, so a test drive should include firm pedal application to check for judder under braking, pulling to one side, or any binding sensation that suggests a seized caliper slide pin. The headlamp aim defects recorded in 2023, one too high and one too low, suggest possible movement in the headlamp adjusters or a previous bulb replacement that was not correctly re-aimed, and this is worth verifying visually before purchase. On the test drive, particular attention should be paid to the behaviour of the engine management light, as its intermittent nature across three tests suggests it may currently be active or recently cleared, and any hesitation, rough idle, or excess smoke under acceleration would point to the underlying fault not having been properly resolved. Given the recurring wiper blade failures recorded on both nearside and offside fronts, inspect the full wiper linkage for any play or streaking across the sweep area, and confirm that all position lamps, particularly the offside rear upper unit, are functioning as corrosion in the lamp holder is a common cause. Underneath the vehicle, the inner sill and subframe mounting areas should be checked for surface corrosion typical of a commercial vehicle of this age, and the offside front suspension arm and bush assembly should be physically inspected for any renewed splitting or movement. Finally, a thorough diagnostic scan retrieving stored fault codes from the engine control unit is strongly advisable before purchase, as the persistent MIL issue indicates an electronic or emissions-related concern that a standard road test alone cannot fully reveal.