2012 Mercedes-Benz SLK 1.8L Petrol · WN11 STN

The vehicle presented is a 2012 Mercedes-Benz SLK with a recorded mileage of 79,179 miles. The most recent DVSA MOT test, conducted on 30 January 2026, resulted in a PASS classification with no defects or advisories recorded, indicating a clean roadworthy state at the time of examination. Reviewing the broader MOT history, the vehicle has demonstrated a largely stable maintenance profile, with the most recent two tests in January 2026 and January 2025 both passing cleanly. A single failure is noted on 8 January 2025, immediately preceding the passing test just two days later on 10 January 2025. This pattern, where a failed test is rapidly followed by a retest pass, typically suggests a minor rectifiable defect was identified and corrected promptly, indicating the vehicle is otherwise maintained to a satisfactory standard. The earlier tests in November 2023 and July 2022 also passed without recorded defects, reinforcing the impression of consistent mechanical upkeep. Overall, the trajectory from 2022 through to 2026 does not indicate any worsening trend in structural integrity, emissions, or major component condition. The recorded mileage of 79,179 miles on a 14-year-old vehicle equates to an annual average of approximately 5,656 miles, which is notably low for a passenger car and particularly low for a leisure-oriented model such as the SLK. This usage profile strongly suggests that the vehicle has either been driven sparingly on weekends and in fair weather only, or has spent considerable periods standing idle in storage or a garage. The gap in MOT testing history between July 2022 and November 2023, and again between November 2023 and January 2025, further supports the likelihood of irregular use. While low mileage preserves engine and gearbox internals from wear, prolonged standing periods introduce their own mechanical concerns, particularly with respect to corrosion of brake discs and calipers, deterioration of rubber components, and degradation of operational fluids. A prospective buyer should be alert to the implications of underuse as much as overuse. Given the clean MOT history combined with the low and likely sporadic usage pattern, the vehicle has not had its condition directly scrutinised through recorded advisories, so a thorough physical inspection is highly advisable. Particular attention should be paid to the condition of the tyres, as the Mercedes-Benz SLK was originally equipped with high-performance low-profile rubber which is prone to sidewall cracking and perishing after many years even if tread depth remains adequate. The age of the tyres should be verified through the DOT date code on the sidewall, as rubber compounds degrade with calendar age regardless of mileage. Brake discs and calipers are highly susceptible to corrosion when a vehicle is stored for extended periods; surface rust on the discs is normal and will clear under braking, but deep pitting, lipping on the disc edge, or seized caliper slide pins will produce vibration, pulling under braking, or uneven pad wear and warrant close inspection. The 12V battery should be load-tested, as batteries that have been repeatedly discharged through infrequent use without a maintenance charger often suffer reduced capacity. All fluid systems, including engine oil, coolant, brake fluid, and the power steering reservoir, should be checked for time-based degradation, with brake fluid in particular being hygroscopic and requiring replacement regardless of mileage due to moisture absorption over the years. On a practical test drive, the prospective buyer should listen carefully for any clonks or knocks from the front and rear suspension, as low-mileage vehicles with prolonged standing time can suffer from dried-out and perished suspension bushes, top mounts, and coil springs, particularly given the SLK's reputation for hard-riding suspension. The folding hardtop mechanism, being a complex hydraulic and electrical system, should be operated fully and observed for smooth operation, leaks from the hydraulic rams, and warning messages, as any hesitation or failure is costly to rectify. The engine should be started from cold, listening for any timing chain rattle or excessive diesel-type clatter from the direct-injection petrol unit, as Mercedes-Benz four-cylinder and V6 engines of this era are known to develop timing chain stretch if oil changes have been infrequent. Underside examination on a ramp is strongly recommended to check for signs of oil leaks from the engine sump, valve cover gasket, and the seven-speed automatic transmission sump, along with exhaust system corrosion at the joints and mounts. A comprehensive service history verification, ideally confirming recent replacement of the timing chain components, coolant, and brake fluid, would provide further reassurance that the vehicle has been suitably maintained despite its low annual mileage.