2012 Mercedes-Benz SLK 2.1L Diesel · YB62 AAJ

The most recent MOT test on the 2012 Mercedes-Benz SLK was conducted on 2026-05-28, resulting in a passing outcome with two advisories that warrant careful attention. The overall maintenance trend over the past four years is stable, with no failures recorded since 2023, indicating consistent roadworthiness. However, the presence of recurring advisories—particularly regarding tyre wear and brake disc condition—suggests that while the vehicle remains functional, it is approaching critical thresholds that may require proactive intervention to prevent premature component failure or safety concerns. The manufacturer’s engine covers and under trays not allowing full inspection of components is also a notable advisory, which could imply potential hidden wear or corrosion in critical areas like the drivetrain or exhaust system, though this does not currently affect roadworthiness. The vehicle’s recorded mileage of 92,401 miles over approximately 14 years represents a moderate annual usage rate of around 6,600 miles per annum, which is typical for a car of this age and class. Lower mileage might suggest periods of inactivity or light use, while this rate indicates moderate driving conditions that have contributed to wear on consumables, suspension, and braking systems. The lack of significant mileage spikes suggests no extreme overuse, but the consistent advisories on tyres and brakes—particularly the rear discs—highlight that the wear progression is gradual but inevitable. The rear tyres’ inner edge wear and potential cracking may indicate uneven load distribution or alignment issues, which could worsen if left unaddressed, leading to premature tyre failure or hydroplaning risks. For the prospective buyer, the most critical areas to inspect are the tyres, brakes, and suspension, as these advisories point to developing issues. The offside and nearside rear tyres worn close to the legal limit and showing inner edge wear suggest that the vehicle may have experienced lateral forces or misalignment, causing uneven tread degradation. On a test drive, listen for unusual noises from the rear tyres, such as a grinding or scraping sound when cornering, which could indicate alignment or camber issues. Additionally, check for uneven tyre wear patterns or visible cracks in the sidewall, which may signal underlying structural or suspension problems. The brake discs, particularly the rear ones, are pitted but not seriously weakened, meaning they are still functional but approaching the point where replacement may be advisable to prevent squeaking or reduced braking efficiency. Inspect the brake pads for thickness and listen for a grinding noise when braking, which could mean metal-to-metal contact if the pads are worn down to the backing plate. Beyond the advisories, the engine covers and under trays not allowing full inspection is a red flag for potential hidden issues, such as oil leaks, corrosion, or drivetrain wear. The buyer should verify that these covers are securely fitted and not obstructing access to critical components like the oil dipstick, coolant reservoir, or exhaust manifold. Given the vehicle’s age and mileage, the suspension components—such as the coil springs, shock absorbers, and suspension bushes—should be checked for signs of wear or stiffness, as these can degrade over time and lead to clunking noises or poor ride quality. During a test drive, observe the vehicle’s handling and suspension response, paying attention to any excessive bouncing, uneven ride height, or unusual clunking sounds, particularly when driving over bumps or at speed. The 12V battery should also be tested for health, as older vehicles may struggle with electrical systems if the battery is weak or corroded, which can manifest as dimming lights, slow starting, or electrical gremlins. Finally, the brake fluid should be checked for moisture contamination or contamination, as brake fluid absorbs water over time, reducing effectiveness and risking hydraulic failure. Given the vehicle’s age, a full fluid service—including brake fluid, coolant, and power steering fluid—should be recommended within the next 12 months to ensure optimal performance and prevent long-term damage.