2021 Peugeot 3008 GT S/S Phev Auto 1.6L Hybrid electric (clean) · YC71 LMV

This 2021 Peugeot 3008 PHEV presents a textbook example of a mechanically dormant vehicle, and while its two most recent MOT tests on 26 September 2025 and 29 November 2024 both returned clean passes with zero advisories or defects recorded, the underlying usage profile demands far closer scrutiny than the documentation alone might suggest. A five-year-old PHEV covering only 23,538 miles implies prolonged periods of stationary inactivity or very limited short-journey use, which is mechanically significant for a plug-in hybrid. The combustion engine and associated ancillaries in a PHEV suffer disproportionately from cold-start wear, oil dilution, and condensation accumulation when never allowed to reach sustained operating temperature, while the high-voltage battery and 12V system are vulnerable to degradation during long storage intervals. The clean MOT record is therefore a reliable indicator of cosmetic and safety component condition at the time of test, but it tells us very little about the internal health of the engine, gearbox, or hybrid powertrain. With an annualised average of approximately 4,708 miles over five years, this vehicle has accumulated mileage at less than a third of the typical UK average, and the absence of an MOT history prior to September 2024 is consistent with either an exemption due to first registration timing or a genuine period off the road. The single 2024 test dated 25 September provides no defects, followed closely by another pass in late November 2024 and the September 2025 pass, leaving no recorded evidence of component wear, corrosion, or degradation at any point. Such a sparse testing record means there is no longitudinal data to verify whether components like brake discs, tyres, or suspension bushes have been progressively wearing or developing surface corrosion between tests, which is particularly relevant given the prolonged standing periods suggested by the mileage profile. For a prospective buyer, the priority during inspection shifts heavily towards the powertrain and underbody condition rather than the standard MOT checklist items. On a test drive, listen carefully for any diesel-like rattle or misfire from the petrol engine on cold start, as PHEV combustion units left standing with stale fuel frequently suffer from injector fouling and ignition coil degradation. Allow the engine to run for at least fifteen minutes and observe whether the cooling fan cycles correctly, as seized or noisy fan motors are a known consequence of inactivity. When transitioning between electric and hybrid modes, any shudder, hesitation, or warning light activation warrants immediate diagnostic interrogation, as the hybrid control system is highly sensitive to a depleted 12V auxiliary battery, which itself is a strong likelihood on a vehicle of this usage profile. Examine the underbody thoroughly for surface corrosion on subframe mounting points, brake pipe unions, and suspension arms, as standing vehicles frequently develop rust blooms on exposed ferrous components even within a short five-year window. The braking system also deserves particular attention, as prolonged standing combined with light use frequently leads to rear caliper slide pin seizure and uneven brake disc corrosion, even where MOT testers have not yet recorded an advisory. On a test drive, apply the brakes firmly from at least 40 mph and feel for any vibration through the pedal or steering wheel, which would indicate warped or corroded discs. Listen for any grinding or rubbing noises from the rear wheels when reversing, which typically indicates a binding or partially seized caliper. Inspect the high-voltage charging port and cable for any signs of discolouration or damage, confirm the charging indicator illuminates correctly, and verify that the advertised electric-only range is broadly achievable, as a significantly degraded result points to battery cell imbalance. Finally, request documented evidence of recent 12V battery replacement, oil change history with dates and mileage, and any diagnostic scans from the Peugeot dealer network to confirm the hybrid system has been routinely exercised and serviced rather than left dormant.