2015 Toyota Hilux 3.0L Diesel · WM15 YPV

A pattern of chronic underbody corrosion and recurring front position lamp failures defines the mechanical history of this 2015 Toyota Hilux, with the DVSA records showing four tests in a three-year window that produced only one clean pass. The most recent test on 2023-08-07 was a pass, but it carried a significant cluster of advisories covering anti-roll bar linkage play, an engine oil leak, general underbody corrosion affecting body, suspension and chassis components, and brake pipe corrosion on the front-to-rear lines. Going back further, the 2022-06-10 pass was similarly affected by brake pipe corrosion advisories across all front-to-rear runs, and both that year and 2023 produced major failures for non-functioning nearside and offside front position lamps, alongside an engine management malfunction indicator lamp fault in 2023. The 2020 test was a clean pass with no advisories at all, marking the last point at which this vehicle emerged from an MOT without mechanical flags being raised. This is a deteriorating rather than stable trend, with corrosion-related advisories accumulating across consecutive tests and electrical faults recurring at the front lighting. The recorded mileage of 154,740 miles against an 11-year age equates to roughly 14,000 miles per year on average, which sits well above the typical private-use accumulation rate for a vehicle of this age and points to either sustained long-distance work or commercial-style duty. MOT testing gaps are present rather than the mileage itself, with no recorded tests visible between mid-2020 and mid-2021 or between mid-2021 and mid-2022 in the sense that consecutive annual tests are shown, but the absence of any 2024, 2025 or 2026 test entries against a vehicle that would still be required to test suggests the Hilux may have been off the road, recently re-registered into MOT, or possibly subject to a recent change of keeper that triggered a fresh test cycle. High annual mileage of this nature accelerates wear on consumables including brake pads, discs, tyres, suspension bushes and clutch friction material, and combined with the repeated brake pipe and underbody corrosion advisories it indicates that chassis-mounted components have already been exposed to prolonged thermal and environmental cycling. Any prospective buyer should treat the brake pipe corrosion advisories as a priority inspection item, as the same defect was recorded on both the 2022 and 2023 tests affecting front-to-rear lines, and DVSA categorisation of pipework as covered in grease or other material typically signals surface degradation that can progress to perforation. On a test drive, listen for any brake pedal sponginess or a low pedal that sinks under sustained pressure, and inspect the pipes visually along their full length for swelling, flaking, or rust bleeding through any wrapping. The anti-roll bar linkage ball joint play flagged on the 2023 test should be evaluated by pushing laterally on the front of the vehicle with the wheels off the ground or by listening for clonking or rattling over speed humps and uneven road surfaces, particularly from the offside front corner. Underneath, expect to find widespread surface corrosion on the chassis rails, suspension arms and body mounts given the advisory wording, so a thorough ramp or pit examination is essential to distinguish cosmetic oxidation from structural perforation, particularly around load-bearing mountings and the rear leaf spring hangers which are known corrosion points on Hilux pickups of this generation. The engine oil leak advisory, although described as not excessive, warrants a close inspection of the sump, rocker cover gasket, and front crankshaft seal area for fresh seepage, and the underside should be checked for oil contamination on the subframe and exhaust downpipe which would indicate an active rather than historical leak. The recurring front position lamp failures across 2020, 2022 and 2023, together with the engine MIL and stability control and SRS warning lamp faults recorded at the 2023 failure, suggest an underlying electrical or earth fault rather than isolated bulb failures, so all dashboard warning lamps should be verified as extinguishing promptly at ignition and the headlamp and sidelamp connectors examined for corrosion or loose terminals. The 2020 dangerous tyre tread depth failure on both rear tyres is a reminder to check current tread depths carefully across all four corners and the spare, and to confirm that the front tyre edge wear noted in 2022 has not returned. Given the combination of high recorded mileage, progressive corrosion advisories, repeated brake line flags and electrical warning lamp history, a pre-purchase inspection by a Toyota specialist or an independent garage familiar with Hilux chassis corrosion patterns would be strongly advisable before committing to purchase.