2006 Mercedes CLS 3.5L Petrol · JR02 ABC

The Mercedes CLS has passed its most recent MOT on 2026-02-23, just five months ago, with a clean bill of health aside from a noted play in the steering rack inner joint—a recurring issue since at least 2025. While the vehicle remains roadworthy, the persistent steering fault suggests deferred maintenance rather than a sudden failure. The most recent test confirms no excessive wear in brakes, suspension, or structural elements, but the grease-covered corroded rear brake pipe from 2025 remains a concern, indicating potential long-term corrosion risks if not addressed. Overall, the trend is stable but not exemplary; the owner’s failure to rectify the steering rack and brake pipe issues suggests a lack of proactive care. The mileage history reveals inconsistent patterns, with a sudden jump from 139,622 miles in November 2023 to 233,539 miles by November 2024—a 93,917-mile surge in just over a year, averaging nearly 26,000 miles annually. This abrupt increase, followed by a return to more typical usage (154,452 miles by February 2026), implies either a period of heavy use or prolonged inactivity before reactivation. The gap between the 2022 and 2023 tests (just 8,190 miles in over a year) further suggests the vehicle was not driven regularly during that period, which could accelerate wear on fluids, seals, and rubber components. The lack of MOTs between 2024 and 2025—despite the high mileage—raises questions about whether the vehicle was even tested during that time, though the 2025 entry contradicts this. A prospective buyer should prioritise an immediate inspection of the steering rack inner joint, as the play noted in both 2025 and 2026 indicates potential binding or excessive wear that could compromise handling. The corroded rear brake pipes, though covered, warrant confirmation that they have been properly cleaned and sealed, as rust penetration could lead to leaks or hydraulic failure. Suspension bushes and coil springs should be visually inspected for cracking or deformation, particularly given the vehicle’s age and mileage. The oil leak from 2024, though deemed minor, suggests the engine bay should be checked for signs of persistent seepage from the timing chain or valve cover gasket. Finally, the exhaust system and underbody should be scrutinised for corrosion, especially around the rear axle, where moisture retention could accelerate deterioration.