2020 Peugeot Boxer 435 PRO L4H2 Bluehdi 2.2L Diesel · OV20 JWD

A pattern of repeated electrical and lighting defects across multiple test cycles defines the mechanical history of this 2020 Peugeot Boxer, with the most recent outcome being a pass on 2026-05-05 following a fail just four days earlier on 2026-05-01 carrying three major defects. The 2026 fail recorded an inoperative registration plate lamp, a cracked offside rear indicator lens showing the wrong emitted colour, an engine malfunction indicator lamp that was either inoperative or showing a fault, and a nearside front side repeater with a defective lens. The previous failure in 2025-05-28 centred on a nearside front service brake lagging in operation, a significant mechanical concern rather than a cosmetic one, while the 2023-06-26 fail listed four outline marker lamp failures affecting both front lamps and middle and offside positions. Two clean passes in 2024-06-25 and 2025-05-30 sit alongside these failures, producing an uneven record with five tests and three failures overall. The persistent presence of minor and major lighting defects across separate years suggests an underlying electrical or wiring vulnerability, and the single but serious brake lag defect warrants particular attention. Recorded mileage of 126,866 miles over six years equates to an annual accumulation of roughly 21,144 miles, which is high for a vehicle of this age and consistent with sustained commercial or fleet use. The mileage progression between tests does not show any obvious stagnation period or extended lay-up, indicating the vehicle has remained in regular service throughout its recorded life. High annual mileage of this nature accelerates wear on consumable items such as brake discs, pads, tyres, drive belts and clutch components, and places greater demand on the suspension bushes, coil springs, anti-roll bar links and steering components. The braking system, in particular, has already demonstrated a functional defect under test, which aligns with the higher wear environment this mileage profile represents. A prospective buyer should focus closely on the items flagged in the most recent advisory and failures. The 2026 advisory recorded an oil leak that was not classed as excessive, so it is worth inspecting the engine and gearbox sump area, the rocker cover gasket and any visible oil staining on the ground beneath the vehicle, and listening for any rough idle or unusual engine note that could indicate the leak worsening. The 2025 brake lag defect should be checked by carrying out a firm stop from around 30 mph on a quiet road, feeling for any pulling to one side, a soft or spongy pedal, or judder under braking, and confirming that the nearside front caliper is not binding by checking for uneven pad wear or a hot wheel rim after driving. The pedal should feel consistent and progressive without any delay in braking response. Given the high mileage, all brake discs and pads should be physically inspected for wear thickness, and the nearside front caliper, slider pins and guide channels examined for free movement. The repeated lighting defects across 2023 and 2026 require a thorough walk-around check of every exterior lamp, including front and rear outline marker lamps, side repeaters, registration plate illumination and all direction indicators, confirming correct colour output and that no moisture is present inside any lens unit. The 2026 engine MIL fault should be investigated by reading any stored diagnostic trouble codes with an OBD-II scanner before purchase, as the MIL being inoperative may mask an active emissions or sensor fault. Wiring looms and earth points should be examined for corrosion or poor connections, particularly around the rear lamp clusters where water ingress is common. With high mileage, suspension condition should be evaluated by driving over uneven surfaces and listening for clonking or knocking from the front, checking for excess body roll, and inspecting the front subframe, brake pipes and fuel lines for any corrosion, particularly given the Boxer's known susceptibility to underbody corrosion in winter road salt conditions.