2004 Mercedes SLK 1.8L Petrol · WP04 YGY

As a 2.0-litre petrol engine of this age, expect fuel economy to be modest, likely averaging in the mid-20s to low-30s mpg depending on your driving style. Being a 2004 model, it falls into the older VED tax brackets, which can be expensive compared to modern, more efficient vehicles. Insurance may be reasonable due to the age of the car, but parts for the SLK can be costly as they are often model-specific.

Maintenance is the primary concern for this specific vehicle. Given the ongoing corrosion and suspension advisories, you should budget for a higher-than-average annual maintenance fund. Including fuel, tax, insurance, and the likely need for mechanical intervention, estimate an annual running cost of £1,500–£2,000 to keep this vehicle roadworthy.

Focus your inspection on the suspension and structural integrity. The MOT history highlights 'corroded' lower suspension arms and a history of sub-frame corrosion; check these areas specifically for flaking metal or structural compromise. The distorted rear wheel noted in the latest test is a red flag for potential past impact damage or neglect—ensure the car tracks straight and does not vibrate at motorway speeds.

Check the operation of the folding roof mechanism, as this is a known complex area for the SLK that is not covered by the MOT. Additionally, inspect the brake pipes mentioned in multiple tests to ensure they are not just surface-cleaned but structurally sound. Finally, verify the condition of the rear tyres, as the recent report notes cracking, which is a sign of age-related rubber degradation.