2005 Mazda 6 2.0L Petrol · KL55 LPJ

The vehicle is currently roadworthy but the maintenance history indicates a worsening trend regarding structural integrity. While it passed its latest test in November 2025 at 138,193 miles, the tester identified corroded rear suspension and inner sills alongside a worn gearbox mount and low nearside handbrake efficiency. This represents a progression from the 2024 test where corrosion was noted but not yet affecting structural rigidity on the sills, suggesting that the oxidation is actively advancing through the chassis despite previous repairs. At 138,193 miles over 21 years, the car averages approximately 6,600 miles per year, which is consistent with low-to-moderate usage. The mileage data shows consistent intervals, with roughly 4,000 miles covered between the November 2024 and November 2025 tests, and another 4,500 miles in the preceding year. This steady usage suggests the vehicle has not suffered from long stationary periods, though the low mileage has not prevented the environmental corrosion issues seen in the record. A buyer must conduct a thorough physical inspection of the inner sills, floor pan, and suspension mounting points to assess the depth of the structural rust. The history shows a significant failure in October 2022 due to excessive corrosion on the outer sills, and while the vehicle passed later, the return of inner sill corrosion indicates a recurring issue. Particular attention should also be paid to the handbrake system, as low efficiency and effort have been flagged across multiple years, and the gearbox mount should be checked for signs of rubber degradation or tearing as noted in the most recent report.