2006 Mercedes-Benz CLS 3.0L Diesel · LR56 MRX

The 2006 Mercedes-Benz CLS presents a broadly stable roadworthiness picture, with the most recent test on 22 November 2021 at 124,403 miles returning a pass and no defects recorded. The maintenance trend across the available history is steady rather than worsening, though the four-year gap to the present date of 16 July 2026 means the vehicle has not been formally assessed for some time. A prior failure on 18 November 2021 at 124,401 miles is notable, yet the tester logged no defects, and the car passed four days later at 124,403 miles, suggesting an administrative or non-mechanical rejection rather than a substantive fault. Mileage accumulation sits at a typical level for a twenty-year-old vehicle, averaging roughly 6,220 miles per year against the recorded 124,403 miles. The records show 104,626 miles at the 13 December 2018 test, rising to 111,790 by 16 November 2019, 118,274 by 16 November 2020, and 124,401 to 124,403 across the two November 2021 tests. This equates to around 6,000 to 7,000 miles annually with no rapid accumulation or extended dormancy indicated. The sparse five-entry history contains clean passes throughout, with no advisories on suspension bushes, brake discs, corrosion, or exhaust emissions ever flagged. A buyer should still commission an independent inspection before purchase given the elapsed time since the last MOT. The absence of recorded advisories does not exempt the car from age-related degradation in structural integrity, coil springs, or binding calipers that four untested years will likely have introduced. Previous keepers appear to have maintained basic statutory compliance, but the unexplained 2021 failure warrants confirmation that no latent brake or lighting fault was suppressed between tests. Prioritise checking underbody corrosion, suspension arm condition, and tyre sidewall cracking at 124,000-plus miles. Verify the service history independently, as the MOT alone offers no insight into cambelt, fluid, or drivetrain upkeep on this high-mileage V6-era Mercedes.