Mercedes Benz Ml250 Special Edit N Bluetec A (2012)

103 real MOT outcomes analysed • 11.7% first-time pass rate

2012 Mercedes Benz Ml250 Special Edit N Bluetec A

CarHunch analysed 103 real MOT records for the 2012 Mercedes Benz Ml250 Special Edit N Bluetec A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

This 2012 Mercedes-Benz ML250 is a serious reliability concern: only 11.7% pass first time against the UK average of 80%, meaning nine out of ten fail their MOT on first attempt. The good news is that dangerous defects are non-existent in this cohort, so failures tend to be fixable rather than safety-critical—but the sheer failure rate remains alarming.

At roughly 96,000 miles the median mileage is reasonable for a 12-year-old diesel SUV, yet the average of just 0.18 failures per vehicle suggests most issues are minor when they do occur. Before buying one, insist on a pre-purchase inspection by a Mercedes specialist, as the first-time pass rate indicates systemic weak points that only hands-on diagnostics will reveal.

Below average reliability 68.3% below UK average
11.7%
pass MOT first time
UK average: ~80%
96,343
typical mileage
81,308–114,121 middle half
0%
ever had a dangerous defect
recorded at any MOT
0.18
avg MOT failures per car
over 1.8 tests on record

What to check before buying a 2012 Mercedes Benz Ml250 Special Edit N Bluetec A

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Mercedes Benz Ml250 Special Edit N Bluetec A

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Mileage Distribution

Most 2012 Mercedes Benz Ml250 Special Edit N Bluetec A vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

81,308
low mileage
96,343
typical
114,121
high mileage

Half of all 2012 Mercedes Benz Ml250 Special Edit N Bluetec A vehicles fall between 81,308 and 114,121 miles.

2012 Mercedes Benz Ml250 Special Edit N Bluetec A — Still on the Road

10 vehicles still getting MOTs in 2025 — 77% of the peak remain.

12 10 2018 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2018–2025.

MOT History Averages

1.8
Avg MOT tests per vehicle
0.18
Avg failures per vehicle
0
Avg advisories per vehicle

Found a specific Mercedes Benz Ml250 Special Edit N Bluetec A?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK