2005 Mercedes CLS 3.0L Diesel · PE55 LFS

The vehicle remains roadworthy, but the maintenance trend shows a clear degradation of rubber components and fluid seals. The most recent test in May 2026 at 77,103 miles passed with multiple advisories related to perishing tyres and a persistent oil leak. While the car consistently passes, the recurring mention of non-excessive oil leaks in both 2025 and 2026 suggests a long-term seal issue that remains unaddressed despite the low annual mileage. The mileage profile is exceptionally low for a 21-year-old Mercedes, averaging approximately 3,600 miles per year. There is a significant gap in usage between November 2021 (71,937 miles) and November 2022 (73,971 miles), where the vehicle covered only 2,034 miles in a year. This low-use pattern explains the state of the rubberwork, as the 2026 test flagged four tyres for cracking, perishing, and uneven wear, a common symptom of age and dry rot rather than tread wear. A buyer must conduct a thorough inspection of the engine and undercarriage regarding the oil leak noted in 2025 and 2026. The light misting on the rear shock absorbers reported in 2025 indicates the beginning of component failure, which should be monitored for further leakage. Furthermore, the corroded offside rear brake pipe flagged in 2021 requires a physical check to ensure corrosion has not progressed into a structural failure. Given the perishing state of all four tyres, a full set of new rubber is likely required to ensure safe handling.