2015 Mazda 6 2.2L Diesel · CK15 JYF

The 2015 Mazda 6 presents a stable and well-maintained roadworthiness profile, culminating in a clean pass on 25 November 2025 at 72,416 miles with zero defects recorded. The maintenance trend is clearly improving. The previous day's failure on 24 November 2025 at the same mileage was a deliberate pre-test that exposed critical faults, both of which were rectified within 24 hours. The fractured nearside and offside rear coil springs are a serious structural concern on any vehicle, indicating either fatigue or impact damage, and their prompt replacement before the pass test demonstrates responsible remedial action. The front brake pads, worn below the 1.5 mm minimum threshold, were also replaced. This pattern of failing a pre-test and immediately correcting defects before the formal inspection is a positive indicator of attentive ownership rather than neglect. The mileage progression tells a consistent story of regular use at approximately 6,500 to 6,700 miles per year, which is typical for a vehicle of this age. The recorded intervals show steady accumulation: 52,588 miles in November 2022, 60,525 miles in November 2023, 67,199 miles in November 2024, and 72,416 miles in November 2025. There are no suspicious gaps or sudden jumps in the odometer readings that would suggest long periods of disuse or clocking concerns. The annual mileage pattern is spread evenly across each twelve-month period, pointing to dependable daily or commuter use rather than sporadic high-mileage bursts that would accelerate wear on drivetrain and suspension components. Buyers should focus their physical inspection on the rear suspension area where both coil springs were replaced. Check for even ride height side to side, listen for clunking over speed bumps, and inspect the spring seats and shock absorbers for any signs of uneven wear or oil misting that could indicate a damper issue masked by the spring replacement. The advisories from the November 2024 test at 67,199 miles flagged worn front brake discs, and while the November 2025 failure addressed pads, confirm whether the discs were also replaced or remain original. Request documentation for the recent brake and spring work. Inspect the rear subframe and suspension mounting points for corrosion, a known concern on older Mazda 6 models, particularly around the rear trailing arm areas where salt and moisture accumulate. A brief test drive under braking will reveal any residual drag or uneven pull that could point to a binding caliper not flagged in the recent clean test.