VAUXHALL UNCLASSIFIED (2015)
Running costs, reliability data, and common problems from 39 real MOT tests.
Annual Cost
£1,825
£152/month
MOT Pass Rate
69%
Below Avg
Road Tax
£165
Based on CC/year
Insurance
Grp 12-25
1598cc Diesel
Proceed With Caution
69% pass rate, £1825/year to run. 13 points below average.
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Annual Running Costs
~55 mpg
Based on 1598cc
Higher estimate due to low pass rate
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Below average reliability. Budget extra for maintenance and repairs. That's 13 points below the national average of 82%. It falls below the VAUXHALL brand average of 84%.
At 11 years old, 69% of VAUXHALL UNCLASSIFIEDs from 2015 passed their MOT first time in 2026. That's based on 39 tests across the UK. The average mileage at this age is 50,072 miles.
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How Does It Compare?
Mileage Analysis
50,072
Average miles
81,400
Expected for age
The average 2015 VAUXHALL UNCLASSIFIED has 50,072 miles on the clock, which is below the expected 81,400 miles for a 11-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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Best Year to Buy?
The most reliable year is the 2017 model with a 91% MOT pass rate, while the 2009 model has the lowest at 68%. The 2015 sits between the two at 69%.
VAUXHALL UNCLASSIFIED by Year
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About the 2015 VAUXHALL UNCLASSIFIED
The 2015 VAUXHALL UNCLASSIFIED is a small family car with a 1598cc diesel engine. 39 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 99% of 2015 cars for MOT pass rates.
With an average of 50,072 miles at 11 years old, VAUXHALL UNCLASSIFIED owners tend to use this car less than the typical driver.
2015 VAUXHALL UNCLASSIFIED Fuel Costs
The 1598cc diesel engine offers a reasonable balance between performance and economy. Expect around 55 mpg in mixed driving, which works out to roughly £905 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2015 VAUXHALL UNCLASSIFIED?
Total estimated annual running cost is £1,825 (£152/month), broken down as £905 fuel, £165 road tax, £55 MOT, and £700 predicted repairs. The higher repair estimate reflects the 69% MOT pass rate. Cars in this bracket tend to need work on suspension, brakes, and emissions components.
VAUXHALL UNCLASSIFIED Reliability Trend
Newer VAUXHALL UNCLASSIFIEDs show better MOT pass rates than older ones, with an average improvement of 10 percentage points.
Buying a Used 2015 VAUXHALL UNCLASSIFIED
At 11 years old, the VAUXHALL UNCLASSIFIED is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2017 model has the highest pass rate at 91%. Note: with only 39 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2015 VAUXHALL UNCLASSIFIED's fuel type, age, and engine size, these are the most likely problem areas to check.
DPF (Diesel Particulate Filter)
Watch outShort journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.
Turbo Wear
Watch outDiesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.
AdBlue System
Medium riskPost-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.
EGR Valve
Watch outExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
Rust and Corrosion
Watch outAt 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.
Suspension Bushings
Watch outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Higher Than Average Failure Rate
Watch outWith a 69% MOT pass rate, this model fails more often than most. Budget for unexpected repairs and get a thorough pre-purchase inspection.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2015 VAUXHALL UNCLASSIFIED stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| VAUXHALL UNCLASSIFIED(2015) | 69% | £905 | £165 | Grp 12-25 | £1825 |
| FORD FIESTA(2013) | 77% | £905 | £30 | Grp 8-20 | £1490-£335 |
| VOLKSWAGEN GOLF(2017) | 91% | £905 | £190 | Grp 12-25 | £1350-£475 |
| VAUXHALL ASTRA(2013) | 79% | £1037 | £135 | Grp 18-32 | £1727-£98 |
| MERCEDES A-CLASS(2017) | 88% | £905 | £190 | Grp 12-25 | £1500-£325 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Vauxhall Models
Explore other Vauxhall cars or similar models in the same category.
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