2015 Porsche 911 4.0L Petrol · D5 ROC

A recurring advisory for fluid loss highlights the primary mechanical vulnerability of this 2015 Porsche 911, which otherwise presents a largely unbroken sequence of passes on its record. On the tenth of April 2026, the vehicle secured a clean pass with no defects recorded, maintaining a generally stable trajectory compared to the previous year when a rear coolant leak was officially noted as an advisory. That cooling system warning is the standout item among otherwise straightforward annual evaluations stretching back to October 2018, marking it as the single documented recurring point of attention on an otherwise orderly test history. Accounting for roughly 1,644 miles per year over its eleven-year lifespan, the total accumulated distance sits at 18,084 miles, reflecting exceptionally sparse road use. This low annual mileage profile spans the entirety of the testing timeline, punctuated only by a minor testing gap in the autumn of 2022 where no MOT was recorded, before resuming a standard inspection cadence. Mechanically, such light usage means that standard road-going wear on high-stress drivetrain components is minimal, though extended periods of non-use can place specific demands on rubber seals, gaskets, and fluid lines. When inspecting the vehicle, priority must be given to the rear coolant leak flagged on the 2025 MOT certificate, requiring a thorough examination of the rear engine bay, hose connections, water pump housing, and auxiliary radiators for any residual staining or active weeping. During a pre-purchase test drive, operating the engine at normal working temperature while stationary and under load will help verify whether the cooling system holds pressure and maintains stable operating temperatures without loss of coolant. Additionally, the presence of factory under trays and sill covers, noted as obscuring full visibility during multiple past inspections, necessitates lifting the vehicle to remove these aerodynamic panels for a clear view of the structural undersides, exhaust routing, and underlying mechanical assemblies.