2012 Mercedes-Benz SLK 1.8L Petrol · WN12 NKD

The 2012 Mercedes-Benz SLK has maintained a consistent MOT pass record across five consecutive tests, all conducted without any recorded defects or advisories. The most recent inspection, on 2025-10-13 at 79,532 miles, confirms the vehicle has passed all mandatory checks for roadworthiness, including brakes, suspension, steering, and emissions. There is no evidence of recurring mechanical failures or structural concerns in the official record, suggesting the vehicle has been subjected to regular MOT scrutiny without major issues arising. However, the absence of defects does not imply the absence of hidden wear—particularly in high-stress components like coil springs, suspension bushes, or drivetrain seals—so a thorough mechanical inspection remains essential. The recorded mileage of 79,532 miles over 14 years equates to approximately 5,681 miles annually, a figure significantly lower than the average for vehicles of this age. The most notable mileage gap occurs between the 2021 test at 44,135 miles and the 2022 test at 54,441 miles, a jump of 10,306 miles in just over a year. While this could indicate a period of heavier use, the subsequent consistent mileage increments—around 8,000 to 10,000 miles per year—suggest the vehicle has not been subjected to extreme wear. The low overall mileage does not preclude the need for attention to consumables like brake pads, tyres, and fluid levels, but it does reduce the likelihood of catastrophic failure from excessive usage. Given the clean MOT history, a buyer should prioritise an inspection of the suspension system, particularly the condition of coil springs, bushes, and dampers, as these components degrade predictably over time regardless of mileage. The brakes, though never flagged in MOTs, warrant close examination for uneven wear, binding calipers, or corrosion on the rear discs—a common issue in SLK models. The exhaust system should also be checked for leaks or excessive corrosion, especially around the catalytic converter and muffler joints. Finally, the interior and exterior should be scrutinised for signs of water ingress, which can compromise electrical systems or structural integrity, particularly in convertible models prone to roof seal failures. The lack of advisories in past MOTs does not rule out these areas of concern.