2010 Mercedes-Benz SLK 2.0L Petrol · CF10 DMV

The vehicle passed its most recent MOT on 17 April 2026, with a single advisory noting that both rear tyres were worn close to the legal limit and on the edge. While a current pass is reassuring, the recent test history shows a clear pattern of recurring rear tyre wear and a single dangerous failure on 24 April 2025 for rear tyre tread depth below the statutory 1.6mm minimum. The trend overall is one of consistent annual passes but with persistent advisories concentrated on rear tyres and, more recently, front brake discs, suggesting that while the car remains roadworthy at each test, certain consumables are being run close to or beyond their serviceable limits and require close attention before purchase. With recorded mileage of 29,423 miles over approximately sixteen years, the vehicle has averaged only around 1,839 miles annually, which is well below typical usage and indicates either very light regular use or extended periods of standing. This low annual mileage is mechanically significant because components designed to be exercised, such as the braking system, drivetrain, suspension, and exhaust, can deteriorate through lack of use as readily as through wear. Brake discs can corrode and become lipped or scored, calipers can bind or seize from inactivity, and seals, gaskets, and flexible hoses can perish with age. The recorded odometer reading should therefore be treated as a lower bound on actual wear rather than an indicator of preserved condition, and any evidence of the vehicle being used regularly and garled would be a positive sign. Given the recurring rear tyre wear advisories across multiple tests, a prospective buyer should closely inspect all four tyres for age-related perishing or cracking of the sidewalls, as rubber compounds degrade with calendar age regardless of tread depth. The braking system warrants particular scrutiny: the 2024 advisory noted pitted and scored front brake discs, and although this was not considered serious, it suggests the discs have not been renewed and may now require replacement, particularly if the car has stood for extended periods allowing surface corrosion to develop. On a test drive, listen for any grinding, scraping, or pulsing through the brake pedal indicative of warped or heavily corroded discs, and check for pulling to one side which may indicate a binding caliper. The rear tyres should also be examined for uneven shoulder wear, which can point to misalignment, worn rear suspension bushes, or weak coil springs, all of which are plausible on a sixteen-year-old Mercedes given the known load sensitivity of the rear axle. Beyond the recorded defects, the low-mileage, age-sixteen profile demands attention to several time-sensitive service items. Brake fluid is hygroscopic and should have been renewed every two to four years regardless of mileage, so its age and condition must be verified, and the same applies to coolant, which can degrade and cause corrosion within the cooling system. The 12V battery is highly likely to be near the end of its service life and should be load-tested, as a failing battery can cause electrical faults and warning messages on Mercedes-Benz systems of this era. The convertible roof mechanism, a known wear point on the R171 SLK, should be exercised fully to confirm smooth operation and check for hydraulic fluid leaks or failing roof seals that could allow water ingress. Finally, inspect the underbody and jacking points for surface corrosion, examine all rubber suspension bushes, drop links, and anti-roll bar bushes for perishing, and confirm a full documented service history including cambelt replacement if applicable to the engine variant, as age-related timing belt failure remains a risk irrespective of low mileage.