2006 Mercedes CLK 1.8L Petrol · YP56 FYY

The most recent MOT test on 23 April 2026 resulted in a pass, accompanied by two advisories: a non-obligatory central rear stop lamp not functioning and an oil leak from the gearbox sump area, noted as not excessive. Looking at the broader test history, the overall trend is one of increasing mechanical wear and age-related deterioration rather than any marked improvement. The 2023 test was entirely clean, but defects began to accumulate from 2024 onwards, culminating in a failure in May 2025 for a fractured offside front coil spring alongside multiple advisories for corroded brake ferrules, perished tyres, a worn nearside front tyre edge, a nail in a rear tyre, and a slight play in the nearside front inner tie rod. The advisories recorded in 2025, while the vehicle passed, point to several components that are now on borrowed time, and a prospective buyer should treat this trajectory as a vehicle entering a phase requiring more attentive maintenance rather than one that is stable or improving. With a recorded mileage of 53,574 miles over approximately 20 years, this CLK has covered an average of around 2,679 miles annually, which is exceptionally low. While such low mileage typically reduces wear on high-cost items like the engine internals, transmission, and drivetrain, it carries its own well-documented risks including standing corrosion, dried and cracked rubber components, and degraded fluids. The pattern of advisories on the DVSA record, particularly fractured coil springs, perished tyres, corroded brake pipes and ferrules, and play in steering and suspension joints, strongly suggests that low use rather than heavy use is the primary driver of deterioration. Buyers should interpret low mileage here as an indicator that age-related degradation is the dominant factor, and the vehicle will require sympathetic inspection rather than mileage-based assumptions. Given the recurring advisories on steering, suspension, and braking components, a pre-purchase inspection should focus on these areas with particular care. The fractured offside front coil spring already replaced prior to the 2025 pass should prompt a close check of the nearside front spring, as coil springs on W209 chassis CLKs are known to fracture with age regardless of mileage; on a test drive, listen for any clonking or knocking over bumps and observe whether the vehicle sits level. The advisories for play in the steering rack inner joint and the nearside front inner tie rod warrant a thorough check for free play in the steering with the wheels off the ground, and the buyer should be alert to vague steering response, uneven tyre wear across the front axle, or any knocking on full lock. The brake pipe corrosion advisories, particularly given that the brake lines on this platform are known to corrode along their length and at the underbody junctions, should prompt a full visual inspection of all four brake lines and a check of the brake fluid for moisture content, as fluid older than two years should be replaced regardless of its appearance. Beyond the documented defects, the low annual mileage and the vehicle's age demand attention to several time-sensitive items that an MOT cannot fully assess. Brake calipers and rear drums can bind after long periods of inactivity, and a test drive should include several firm stops from moderate speed to confirm the vehicle pulls straight and the brakes release cleanly without residual drag. The coolant, brake fluid, and automatic transmission fluid should be considered overdue for replacement on a calendar basis, with the latter particularly important for the longevity of the seven-speed automatic or five-speed manual fitted to this model. The 12V battery is likely to be aged and should be load-tested, while all coolant hoses, vacuum lines, and the air conditioning compressor drive belt should be inspected for perishing. Rubber items including the front and rear subframe bushes, anti-roll bar drop links, and engine mounts are unlikely to have been replaced given the low mileage and will be nearing the end of their service life; a thorough check with the vehicle on a ramp is therefore strongly advisable before purchase, along with a compression test and inspection of the condition of the original exhaust system, which may well be suffering from internal corrosion despite the low mileage.