2003 Mercedes-Benz SL 5.4L Petrol · 555 RXX

The vehicle most recently passed its MOT on 19 December 2025 with no defects or advisories recorded. Looking at the broader history, the maintenance trend is highly stable, with a consistent run of clean passes since late 2020. While there was a failure in December 2019 involving a front lower shock absorber bush and ball joint, as well as advisories for rear tyre wear and suspension bush play, these issues appear to have been fully rectified. The current lack of advisories suggests a vehicle that is being kept in a roadworthy state. With a recorded mileage of 60,577 miles over a twenty-three year period, the vehicle has averaged approximately 2,634 miles per year. This is exceptionally low usage for a car of this vintage, indicating it has likely served as a secondary vehicle or has spent significant periods in storage. While this results in reduced mechanical wear on the drivetrain and interior, low-mileage vehicles are often susceptible to degradation caused by inactivity rather than usage, which necessitates a different inspection focus than a high-mileage example. Given the low annual mileage, the buyer must prioritize an inspection of the rubber components. Specifically, examine the tyre sidewalls for fine cracking or perishing, as tyres can lose their structural integrity through age even if the tread remains legally deep. Check the brake discs for surface corrosion and ensure the calipers are not binding, which is common in vehicles that stand for long periods. During the test drive, listen for any knocks or clunks from the suspension, particularly around the front lower arms and rear rose joints, to ensure the previous suspension work was carried out to a high standard and that no new wear has developed. Further attention should be paid to calendar-based maintenance. Verify the service history to ensure that engine oil, coolant, and brake fluid have been changed according to time intervals rather than mileage, as fluids degrade and absorb moisture over time. The health of the 12V battery should be tested, as infrequent use often leads to premature battery failure. Finally, as this is an SL model, a full operational check of the folding roof mechanism is essential to ensure the hydraulic seals have not perished and the system operates smoothly without hesitation or leaks.