2012 Mercedes-Benz SLK 1.8L Petrol · LS62 TKD

Corrosion on the rear brake pipes represents the most significant mechanical concern for this vehicle, following a recurring pattern of advisories that has escalated in the most recent test on 08 April 2026. While the vehicle has maintained a passing status since 2020, the transition from a single offside rear brake pipe advisory in 2024 to both nearside and offside rear pipes being flagged as corroded and covered in grease in 2026 indicates a worsening condition in the braking system's hydraulic lines. This progression suggests that the degradation of the metalwork is actively advancing, despite the vehicle passing its most recent inspection. The recorded mileage of 42,225 miles over a 14-year period reflects an unusually low usage pattern, averaging approximately 3,016 miles per year. Such low annual accumulation can be indicative of infrequent road use, which often correlates with the specific types of defects seen in this history, such as tyre perishing and the development of corrosion on metal components. Mechanically, while the drivetrain and engine may have lower wear than a higher-mileage equivalent, the lack of regular movement can lead to the degradation of rubber components and the accumulation of moisture in hard-to-reach areas, potentially accelerating the oxidation of brake lines and suspension elements. A prospective buyer should prioritize a thorough inspection of the braking system, specifically focusing on the condition of the rear brake pipes. The presence of grease or other materials covering the corrosion, as noted in the 2026 advisory, may be an attempt to mask the extent of the decay or a result of previous lubrication efforts. During a test drive, pay close attention to the brake pedal feel; any sponginess, a soft pedal, or a lack of firm resistance could indicate that the corroded pipes are compromising hydraulic integrity. Additionally, listen for any unusual noises from the rear of the vehicle when braking or during low-speed manoeuvres that might suggest further degradation of the lines or connections. Further attention should be directed toward the tyre condition and suspension linkages, given the history of failures and advisories in these areas. Although the 2020 failure regarding exposed cords and the 2021 advisories regarding perishing and worn edges are not recent, the low mileage profile means rubber components may still be subject to age-related cracking. On the test drive, check for any steering pull or uneven tyre wear, and listen for knocks or clunks when driving over uneven surfaces, which would indicate issues with the anti-roll bar linkages or other suspension bushes that have previously been flagged as deteriorated.