2003 Mercedes-Benz SLK 2.0L Petrol · NV03 AVJ

The 2003 Mercedes-Benz SLK presents a broadly roadworthy status following its most recent December 2025 test at 99,533 miles, where the vehicle passed with no defects recorded. The maintenance trend across the supplied records is stable, showing no advisories or mechanical faults flagged by testers between 2023 and 2025. A curious anomaly appears on 16 December 2025, when the car failed and then passed on the same day at identical mileage with no defects listed, suggesting an administrative or procedural rejection rather than a genuine mechanical concern. Recorded mileage sits at 99,533 against an age of roughly 23 years, equating to a low average of about 4,328 miles per year. The data shows gentle accumulation: 95,170 miles in January 2023, 95,263 by October 2023, 98,384 in September 2024, and 99,533 in December 2025. Such low annual use implies the SLK likely spent extended periods stationary, a pattern that often masks degraded rubber components and fluid contamination not captured in a clean MOT sheet. The sparse record carries no gaps exceeding fourteen months, so the test cadence itself raises no red flags. Given the absence of any advisories on suspension bushes, coil springs, brake discs, or structural corrosion, the buyer should still commission an independent inspection of those items before purchase. Long standing periods at low mileage accelerate perishing of suspension mounts and brake caliper seizing far more than the MOT history suggests. The same-day fail-pass in December 2025 warrants a check of the DVSA refusal reason to confirm no hidden defect was quietly rectified off-record. Prospective owners should prioritise an underbody assessment for rust and a fluid sample check, as 23-year-old Mercedes rubber and coolant demand scrutiny irrespective of a clean test ledger. The previous keeper clearly maintained test compliance, but the low-use profile means consumable degradation from age, not miles, remains the chief risk on this roadster.