2015 Mercedes-Benz CLS 3.0L Diesel · FN15 PKF

The 2015 Mercedes-Benz CLS presents a stable and fully roadworthy picture. The most recent test on 21 August 2025 at 112,318 miles returned a pass with no defects recorded, and this clean result follows four consecutive annual passes with zero advisories. The maintenance trend is consistent and shows no worsening mechanical or structural concerns across the available record. Annual mileage averages around 10,200 miles, which sits within typical bounds for an eleven-year-old executive saloon. The records show steady accumulation: 63,079 miles in November 2021, 76,218 by November 2022, 84,640 in August 2023, 100,086 in August 2024, and 112,318 by August 2025. No erratic jumps or dormant periods appear. The clean sheet at every test suggests the previous keeper addressed wear before each examination rather than letting consumables or corrosion reach advisory threshold. With no historical flags on suspension bushes, brake discs, coil springs, exhaust emissions, or structural integrity, the buyer faces low documentary risk. The absence of advisories does not exempt the car from in-person checks. A Mercedes of this age and mileage warrants a close look at front control arm bushes, rear subframe corrosion, and caliper slide operation, as these items commonly degrade silently between tests. Given the unbroken pass record, previous ownership clearly prioritised statutory upkeep. The buyer should still commission a pre-purchase inspection to confirm actual component condition, since MOT cleanliness alone cannot reveal early bush cracking or intermittent binding calipers not present on test day.