2006 Porsche 911 3.8L Petrol · 911 BAS

Persistent oil leakage and recurring braking issues define the mechanical profile of this vehicle, despite its most recent successful MOT on 8 December 2024 which showed no defects. The history reveals a pattern of instability regarding the braking system and electronic controls, specifically noted during the January 2024 failure where both nearside front and offside rear service brakes were recorded as excessively binding. While the most recent test suggests these specific braking issues have been addressed, the recurring advisory for an oil leak, appearing in both 2021 and 2024, indicates a long-term seepage issue that has not yet been fully rectified to a level where it no longer warrants official notice. The recorded mileage of 101,363 miles reflects a relatively low annual usage pattern of approximately 5,068 miles per year for a vehicle of this age. While this lower-than-average accumulation suggests the car has not been subject to heavy high-speed motorway transit, it also introduces the risk of components ageing through stagnation rather than wear. In high-performance vehicles like this Porsche, low mileage can often lead to the hardening of rubber seals and gaskets, which likely contributes to the persistent oil leak advisories, and can cause brake calipers to seize or bind due to infrequent movement. A prospective buyer should pay close attention to the braking performance and the engine bay during a test drive. Given the history of binding calipers, listen for any uneven deceleration or dragging sounds when coasting, and feel for any pulling to one side under braking. The previous failure regarding the electronic stability control warning lamp suggests that while the fault may have been cleared, the electrical integrity of the sensor network should be verified. Furthermore, the advisory for play in the steering rack inner joints from 2021 should be re-evaluated; during a test drive, any vague steering feel, clicking noises when turning the wheel at low speeds, or a wandering sensation on straight roads could indicate that the steering rack components require attention. The ongoing oil leak advisory requires a thorough visual inspection of the engine compartment and the underbody. Look for fresh oil residue on the engine casing, exhaust components, or dripping onto the undertray, as even a non-excessive leak can lead to significant repair costs if it originates from a high-pressure seal or a gasket. If the leak is accompanied by any burning smell after the engine reaches operating temperature, it suggests oil is contacting hot exhaust components. Ensuring the washer system is fully functional is also necessary, following the previous failure regarding insufficient washer liquid, to ensure all visibility components are operating as intended.