Fiat Adria Twin Supreme 640 Slb MOT Pass Rate
Overall pass rate across all manufacture years, based on 65 real MOT test results. Failure rate: 7.7%.
Data from official DVSA MOT testing records
Fiat Adria Twin Supreme 640 Slb MOT Reliability Overview
The Fiat Adria Twin Supreme 640 Slb is a rare vehicle in the UK, with 65 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 92.3% and a failure rate of 7.7%, which is well above the UK average of approximately 37%.
Based on this data, the Fiat Adria Twin Supreme 640 Slb earns a "Excellent" reliability rating. The average Fiat Adria Twin Supreme 640 Slb presents for MOT with approximately 13,822 miles on the clock. The 2020 manufacture year performs best with a 92.1% pass rate.
The most common MOT failure for the Fiat Adria Twin Supreme 640 Slb is Lamps, reflectors and electrical equipment, affecting 13.8% of all tests. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. The second most common issue is Visibility at 3.1%. Noise, emissions and leaks rounds out the top three at 1.5%. 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 | Lamps, Reflectors And Electrical Equipment | 13.8% | 9 |
| 2 | Visibility | 3.1% | 2 |
| 3 | Noise, Emissions And Leaks | 1.5% | 1 |
| 4 | Brakes | 1.5% | 1 |
Failures per 10,000 Miles
avg. 13,822 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 |
|---|---|---|---|
| Lamps & Electrical | 10.02 | 13.8% | 9 |
| Visibility | 2.23 | 3.1% | 2 |
| Noise, emissions and leaks | 1.11 | 1.5% | 1 |
| Brakes | 1.11 | 1.5% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Fiat Adria Twin Supreme 640 Slb has 13,822 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 Fiat Adria Twin Supreme 640 Slb has a mileage-adjusted failure rate of 5.57% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Fiat Adria Twin Supreme 640 Slb MOT Data
The Fiat Adria Twin Supreme 640 Slb is a rare vehicle in the UK, with 65 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 92.3% and a failure rate of 7.7%, which is well above the UK average of approximately 37%.
For Fiat Adria Twin Supreme 640 Slb owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on lamps, reflectors and electrical equipment and visibility 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 Adria Twin Supreme 640 Slb is likely to perform.
Lamps, reflectors and electrical equipment — 13.8% of failures
Lamps, reflectors and electrical equipment issues account for 13.8% of MOT failures on the Fiat Adria Twin Supreme 640 Slb. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Visibility — 3.1% of failures
Visibility issues account for 3.1% of MOT failures on the Fiat Adria Twin Supreme 640 Slb. Visibility failures relate to the windscreen, wipers, washers, mirrors, and view-obstructing damage. Cracks in the windscreen swept area, ineffective wipers, or empty washer bottles are common causes. Typical repair costs: £10–300. Pre-MOT check: Check the windscreen for chips and cracks — damage larger than 10mm in the driver's swept area or 40mm elsewhere will fail. Test washers and wipers. Ensure both door mirrors are intact and adjustable.
Noise, emissions and leaks — 1.5% of failures
Noise, emissions and leaks issues account for 1.5% of MOT failures on the Fiat Adria Twin Supreme 640 Slb. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Frequently Asked Questions
What is the MOT pass rate for the Fiat Adria Twin Supreme 640 Slb?
Based on 65 (based on limited data) MOT tests in our database, the Fiat Adria Twin Supreme 640 Slb has an overall pass rate of 92.3% (7.7% fail rate).
What are the most common MOT failures on a Fiat Adria Twin Supreme 640 Slb?
The top 3 reasons a Fiat Adria Twin Supreme 640 Slb fails its MOT are: 1. Lamps, reflectors and electrical equipment (13.8%), 2. Visibility (3.1%), 3. Noise, emissions and leaks (1.5%). Check these areas before booking your MOT.
Is the Fiat Adria Twin Supreme 640 Slb reliable?
With a 7.7% MOT failure rate, the Adria Twin Supreme 640 Slb is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Fiat Adria Twin Supreme 640 Slb?
Based on failure data, focus on: Lamps, reflectors and electrical equipment (13.8%); Visibility (3.1%); Noise, emissions and leaks (1.5%). 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.