2014 Mazda 6 2.2L Diesel · LM64 RGZ

Recurring oil leaks and progressive wear on the braking system represent the primary mechanical concerns for this vehicle, following its most recent pass on 10 April 2026. While the car has avoided failures in the last two testing cycles, the presence of both front and rear oil leak advisories across the 2025 and 2026 tests indicates a persistent issue that has not been rectified. This trend, combined with the most recent advisories regarding thinning rear brake pads and pitted rear brake discs, suggests that consumable components and sealing elements are reaching the end of their service life. The vehicle has covered 137,975 miles over its twelve-year lifespan, averaging approximately 11,498 miles per year. This mileage profile is consistent with typical UK annual usage for a vehicle of this age. From a mechanical standpoint, this level of accumulation suggests a standard rate of wear on suspension bushings, drivetrain components, and various rubber seals. The consistency in annual mileage indicates the vehicle has been in regular use rather than undergoing long periods of stationary storage, which aligns with the progressive nature of the recorded wear on the brakes and suspension components. Prospective buyers should pay close attention to the engine bay and underbody during a physical inspection, specifically looking for the source of the documented oil leaks. On a test drive, listen for any rhythmic tapping or increased engine noise that might suggest oil pressure issues, and check for any visible dripping from the sump or gasket areas. The 2025 failure regarding an excessively worn offside front lower suspension arm ball joint highlights a previous weakness in the steering and suspension geometry; therefore, the driver should actively check for any knocks, clunks, or vibrations through the steering wheel when navigating uneven road surfaces or turning the wheel at low speeds. The recent advisories for the rear braking system necessitate a close evaluation of stopping performance. Given the reports of thin pads and pitted discs, a test drive should include several controlled applications of the brakes to check for any pedal judder, pulsation, or unusual squealing. Any pulling to one side during braking could indicate a binding caliper or uneven pad wear. Additionally, ensure the rear exhaust heat shield, which was flagged as loose in 2025, is now securely fastened to prevent any rattling or buzzing noises during acceleration or at higher speeds.