Mercedes Ml250 Bluetec MOT Pass Rate
Overall pass rate across all manufacture years, based on 50 real MOT test results. Failure rate: 8.0%.
Data from official DVSA MOT testing records
Mercedes Ml250 Bluetec MOT Reliability Overview
The Mercedes Ml250 Bluetec is a rare vehicle in the UK, with 50 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 92.0% and a failure rate of 8.0%, which is well above the UK average of approximately 37%.
Based on this data, the Mercedes Ml250 Bluetec earns a "Excellent" reliability rating. The average Mercedes Ml250 Bluetec presents for MOT with approximately 66,663 miles on the clock. The 2012 manufacture year performs best with a 92.0% pass rate.
The most common MOT failure for the Mercedes Ml250 Bluetec is Tyres, affecting 6.0% of all tests. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. The second most common issue is Suspension at 4.0%. Body, Structure and General Items rounds out the top three at 2.0%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Pass Rate by Manufacture Year
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Tyres | 6.0% | 3 |
| 2 | Suspension | 4.0% | 2 |
| 3 | Body, Chassis, Structure | 2.0% | 1 |
| 4 | Noise, Emissions And Leaks | 2.0% | 1 |
| 5 | Body, Structure And General Items | 2.0% | 1 |
Failures per 10,000 Miles
avg. 66,663 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Tyres | 0.90 | 6.0% | 3 |
| Suspension | 0.60 | 4.0% | 2 |
| Body & Structure | 0.60 | 4.0% | 2 |
| Noise, emissions and leaks | 0.30 | 2.0% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Mercedes Ml250 Bluetec has 66,663 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Mercedes Ml250 Bluetec has a mileage-adjusted failure rate of 1.20% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Mercedes Ml250 Bluetec MOT Data
The Mercedes Ml250 Bluetec is a rare vehicle in the UK, with 50 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 92.0% and a failure rate of 8.0%, which is well above the UK average of approximately 37%.
For Mercedes Ml250 Bluetec owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on tyres and suspension for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Ml250 Bluetec is likely to perform.
Tyres — 6.0% of failures
Tyres issues account for 6.0% of MOT failures on the Mercedes Ml250 Bluetec. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Suspension — 4.0% of failures
Suspension issues account for 4.0% of MOT failures on the Mercedes Ml250 Bluetec. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Body, Structure and General Items — 2.0% of failures
Body, Structure and General Items issues account for 2.0% of MOT failures on the Mercedes Ml250 Bluetec. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Frequently Asked Questions
What is the MOT pass rate for the Mercedes Ml250 Bluetec?
Based on 50 (based on limited data) MOT tests in our database, the Mercedes Ml250 Bluetec has an overall pass rate of 92.0% (8.0% fail rate).
What are the most common MOT failures on a Mercedes Ml250 Bluetec?
The top 3 reasons a Mercedes Ml250 Bluetec fails its MOT are: 1. Tyres (6.0%), 2. Suspension (4.0%), 3. Body, Structure and General Items (2.0%). Check these areas before booking your MOT.
Is the Mercedes Ml250 Bluetec reliable?
With a 8.0% MOT failure rate, the Ml250 Bluetec is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Mercedes Ml250 Bluetec?
Based on failure data, focus on: Tyres (6.0%); Suspension (4.0%); Body, Structure and General Items (2.0%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.