2012 Mercedes-Benz C 2.1L Diesel · LT62 ADZ

The Mercedes-Benz C-Class in question presents a stable roadworthiness profile over the past year, with no recorded defects in its two most recent MOT tests—both conducted in December 2025 at mileages of 143,909 and 143,911 miles. The vehicle passed without advisories or failures, indicating that any prior issues have either been resolved or are not currently compromising its mechanical integrity. However, the cluster of three consecutive failures in May 2024, all within a 12-day window and under 138,000 miles, suggests a brief period of unresolved concerns, though the absence of defects in those tests means the exact nature remains undocumented. For a buyer, this clean recent history is encouraging, but the lack of transparency in the 2024 failures raises a cautionary note—previous owners may have addressed problems just outside MOT thresholds, or the tester may have overlooked minor but critical advisories. The mileage accumulation aligns closely with the vehicle’s age, averaging roughly 10,279 miles per year over its 14-year lifespan, which is typical for a lightly used executive saloon. The most recent MOT gap—just five days between the December 2025 fail and pass—implies the vehicle was either garaged or driven minimally during that period, possibly awaiting minor rectifications. The longer interval between the May 2024 failures and the November 2024 pass (around 5,000 miles in six months) could indicate a phase of reduced use, though the exact reason isn’t clear from the records alone. There’s no evidence of aggressive driving or extreme wear patterns, but the absence of documented advisories in earlier tests leaves a gap in understanding how components like suspension bushes, brake fluid levels, or exhaust emissions were managed over time. Given the lack of defects in recent tests, a buyer should prioritise a thorough inspection of components prone to silent degradation in Mercedes-Benz models of this age. Pay close attention to the suspension—specifically the condition of coil springs, anti-roll bars, and bushings—since wear in these areas often goes unnoticed until handling becomes compromised. The braking system, including caliper binding, disc thickness, and pad condition, should be checked meticulously, even though no failures were recorded; binding calipers or uneven wear could have been rectified just before testing. Structural integrity, particularly around wheel arches and underseal, should be scrutinised for corrosion, as Mercedes-Benz models from this era are susceptible to surface rust despite their reputation for build quality. Finally, verify fluid levels—brake, coolant, and power steering—along with tyre tread depth and condition, as these are common areas where cost-conscious owners might cut corners between MOTs. The clean recent history is a positive sign, but due diligence on these high-wear components will confirm whether the vehicle has been maintained to Mercedes-Benz standards or merely passed the minimum legal thresholds.